Chemical Properties of Formic acid (CAS 64-18-6)

InChI

InChI=1S/CH2O2/c2-1-3/h1H,(H,2,3)

InChI Key

BDAGIHXWWSANSR-UHFFFAOYSA-N

Formula

CH2O2

SMILES

O=CO

Molecular Weight¹

46.03

CAS

64-18-6

Other Names

• Acide formique
• Acido formico
• Add-F
• Amasil
• Ameisensaeure
• Aminic acid
• Bilorin
• Collo-Bueglatt
• Collo-Didax
• Formira
• Formisoton
• Formylic acid
• HCOOH
• Hydrogen carboxylic acid
• Kwas metaniowy
• Kyselina mravenci
• Mierenzuur
• Myrmicyl
• Rcra waste number U123
• UN 1779
• methanoic acid

• ω : Acentric Factor.
• PAff : Proton affinity (kJ/mol).
• T_ig : Autoignition Temperature (K).
• BasG : Gas basicity (kJ/mol).
• Δ_cH°_liquid : Standard liquid enthalpy of combustion (kJ/mol).
• C_p,gas : Ideal gas heat capacity (J/mol×K).
• C_p,liquid : Liquid phase heat capacity (J/mol×K).
• μ : Dipole Moment (debye).
• η : Dynamic viscosity (Pa×s).
• ε_r : Dielectric Constant (Relative permittivity).
• LFL : Lower Flammability Limit (% in Air).
• UFL : Upper Flammability Limit (% in Air).
• T_flash,cc : Flash Point (Closed Cup Method) (K).
• Δ_fG° : Standard Gibbs free energy of formation (kJ/mol).
• R_g : Radius of Gyration.
• Δ_fH°_gas : Enthalpy of formation at standard conditions (kJ/mol).
• Δ_fH°_liquid : Liquid phase enthalpy of formation at standard conditions (kJ/mol).
• Δ_fusH° : Enthalpy of fusion at standard conditions (kJ/mol).
• Δ_fusH : Enthalpy of fusion at a given temperature (kJ/mol).
• Δ_subH : Enthalpy of sublimation at a given temperature (kJ/mol).
• Δ_vapH° : Enthalpy of vaporization at standard conditions (kJ/mol).
• Δ_vapH : Enthalpy of vaporization at a given temperature (kJ/mol).
• IE : Ionization energy (eV).
• logP_oct/wat : Octanol/Water partition coefficient.
• McVol : McGowan's characteristic volume (ml/mol).
• NFPA Fire : NFPA Fire Rating.
• NFPA Health : NFPA Health Rating.
• NFPA Safety : NFPA Safety Rating.
• P_c : Critical Pressure (kPa).
• pKa : Log10 of Acid Dissociation Constant.
• P_triple : Triple Point Pressure (kPa).
• P_vap : Vapor pressure (kPa).
• n₀ : Refractive Index.
• ρ_l : Liquid Density (kg/m³).
• I_np : Non-polar retention indices.
• I_p : Polar retention indices.
• Δ_fusS : Entropy of fusion at a given temperature (J/mol×K).
• S°_gas : Molar entropy at standard conditions (J/mol×K).
• S°_liquid : Liquid phase molar entropy at standard conditions (J/mol×K).
• γ : Surface Tension (N/m).
• T_boil : Normal Boiling Point Temperature (K).
• T_c : Critical Temperature (K).
• λ_gas : Gas thermal conductivity (W/m×K).
• λ_liquid : Liquid thermal conductivity (W/m×K).
• T_fus : Normal melting (fusion) point (K).
• T_triple : Triple Point Temperature (K).
• U_Qi : UNIQUAC Qi Parameter.
• U_Ri : UNIQUAC Ri Parameter.
• V_c : Critical Volume (m³/kmol).
• Z_c : Critical Compressibility.
• Z_ra : Rackett Parameter.
• ¹: Molecular weight from the IUPAC atomic weights tables.

Physical Properties

Property	Value	Unit	Source
ω	[0.3125; 0.4730]
ω	0.3222		PSRK revision IV (2005), critical constants and acentric factors of 1000 components Compiled value
ω	0.3125		ChemSep v8.3 pure component data Compiled value
ω	0.4730		KDB
PAff	742.00	kJ/mol	NIST
Tig	[812.15; 874.26]	K
Tig	874.26	K	KDB
Tig	812.15	K	NCMS SOLV-DB
BasG	710.30	kJ/mol	NIST
ΔcH°liquid	[-254.60; -253.80]	kJ/mol
ΔcH°liquid	-253.80 ± 0.30	kJ/mol	NIST
ΔcH°liquid	-254.60 ± 0.30	kJ/mol	NIST
μ	[1.42; 1.50]	debye
μ	1.42	debye	ChemSep v8.3 pure component data Compiled value
μ	1.50	debye	KDB
εr	58.50		NCMS SOLV-DB
LFL	18.00	% in Air	KDB
UFL	57.00	% in Air	KDB
Tflash,cc	[332.04; 332.15]	K
Tflash,cc	332.04	K	KDB
Tflash,cc	332.15	K	NCMS SOLV-DB
ΔfG°	[-365.94; -351.20]	kJ/mol
ΔfG°	-365.94	kJ/mol	ChemSep v8.3 pure component data Compiled value
ΔfG°	-351.20	kJ/mol	KDB
Rg	0.1880		KDB
ΔfH°gas	[-393.63; -378.30]	kJ/mol
ΔfH°gas	Outlier -393.63	kJ/mol	ChemSep v8.3 pure component data Compiled value
ΔfH°gas	-378.90	kJ/mol	KDB
ΔfH°gas	-378.60	kJ/mol	NIST
ΔfH°gas	-379.00	kJ/mol	NIST
ΔfH°gas	-379.20 ± 0.60	kJ/mol	NIST
ΔfH°gas	-378.30	kJ/mol	NIST
ΔfH°gas	-378.50 ± 0.60	kJ/mol	NIST
ΔfH°liquid	[-425.50; -424.80]	kJ/mol
ΔfH°liquid	-425.09	kJ/mol	NIST
ΔfH°liquid	-425.50 ± 0.30	kJ/mol	NIST
ΔfH°liquid	-424.80 ± 0.30	kJ/mol	NIST
ΔfusH°	10.17	kJ/mol	Joback Calculated Property
ΔvapH°	[19.90; 46.30]	kJ/mol
ΔvapH°	20.08	kJ/mol	NCMS SOLV-DB
ΔvapH°	46.30	kJ/mol	NIST
ΔvapH°	36.00	kJ/mol	NIST
ΔvapH°	46.30 ± 0.50	kJ/mol	NIST
ΔvapH°	46.30 ± 0.50	kJ/mol	NIST
ΔvapH°	19.90	kJ/mol	NIST
ΔvapH°	19.90	kJ/mol	NIST
IE	[10.70; 11.51]	eV
IE	11.33 ± 0.01	eV	NIST
IE	11.31	eV	NIST
IE	11.33 ± 0.00	eV	NIST
IE	11.16 ± 0.03	eV	NIST
IE	11.31 ± 0.00	eV	NIST
IE	11.30	eV	NIST
IE	11.33	eV	NIST
IE	11.35 ± 0.03	eV	NIST
IE	11.16 ± 0.03	eV	NIST
IE	11.33	eV	NIST
IE	11.05 ± 0.03	eV	NIST
IE	11.05 ± 0.01	eV	NIST
IE	11.33	eV	NIST
IE	11.50	eV	NIST
IE	11.34	eV	NIST
IE	Outlier 10.70	eV	NIST
IE	11.51	eV	NIST
logPoct/wat	-0.540		NCMS SOLV-DB
McVol	32.390	ml/mol	McGowan Calculated Property
NFPA Fire	[%!d(float64=2); %!d(float64=2)]
NFPA Fire	2		KDB
NFPA Fire	2		NCMS SOLV-DB
NFPA Health	[%!d(float64=3); %!d(float64=3)]
NFPA Health	3		KDB
NFPA Health	3		NCMS SOLV-DB
NFPA Safety	0		NCMS SOLV-DB
Pc	[5810.00; 7390.00]	kPa
Pc	5810.00	kPa	PSRK revision IV (2005), critical constants and acentric factors of 1000 components Compiled value
Pc	5810.00	kPa	ChemSep v8.3 pure component data Compiled value
Pc	7390.00	kPa	KDB
pKa	3.75		NCMS SOLV-DB
Ptriple	[2.36; 2.41]	kPa
Ptriple	2.41	kPa	ChemSep v8.3 pure component data Compiled value
Ptriple	2.36 ± 0.01	kPa	NIST
Inp	[490.00; 543.00]
Inp	Outlier 543.00		NIST
Inp	512.00		NIST
Inp	512.00		NIST
Inp	495.00		NIST
Inp	490.00		NIST
Inp	490.00		NIST
Inp	495.00		NIST
Inp	512.00		NIST
Ip	[1470.00; 1543.60]
Ip	1510.00		NIST
Ip	1528.00		NIST
Ip	1543.60		NIST
Ip	1470.00		NIST
Ip	1470.00		NIST
Ip	1470.00		NIST
Ip	1485.00		NIST
Ip	1521.00		NIST
Ip	1492.00		NIST
Ip	1499.00		NIST
Ip	1505.00		NIST
Ip	1501.00		NIST
Ip	1532.00		NIST
Ip	1533.00		NIST
Ip	1528.00		NIST
S°gas	248.70 ± 0.42	J/mol×K	NIST
S°liquid	[128.40; 143.10]	J/mol×K
S°liquid	131.84	J/mol×K	NIST
S°liquid	128.40	J/mol×K	NIST
S°liquid	143.10	J/mol×K	NIST
Tboil	[372.00; 380.85]	K
Tboil	374.15	K	Determination and correlation of liquid liquid equilibria for the (water + carboxylic acid + dimethyl maleate) ternary systems at T = 298.2K
Tboil	374.05	K	Quaternary phase equilibrium of water-carboxylic acid mixture (formic-propionic acid or acetic-propionic acid)-solvent liquid systems at 298.15 K
Tboil	374.20	K	Ternary liquid-liquid phase equilibria of (water-carboxylic acid-1-undecanol) systems at 298.15 K
Tboil	374.40	K	Liquid-Liquid Equilibria for Ternary Systems of Water + Formic Acid + Dibasic Esters
Tboil	373.60	K	Effect of Dissolved Salts on the Enthalpy of Mixing of the Methanol + Formic Acid System at 303.15 K
Tboil	373.71	K	ChemSep v8.3 pure component data Compiled value
Tboil	374.00	K	KDB
Tboil	373.71	K	NCMS SOLV-DB
Tboil	373.80	K	NIST
Tboil	373.85 ± 0.30	K	NIST
Tboil	373.75 ± 0.40	K	NIST
Tboil	373.63 ± 0.10	K	NIST
Tboil	Outlier 380.85 ± 5.00	K	NIST
Tboil	373.70 ± 0.40	K	NIST
Tboil	373.95 ± 0.50	K	NIST
Tboil	373.85 ± 0.20	K	NIST
Tboil	373.90 ± 0.50	K	NIST
Tboil	373.90 ± 0.50	K	NIST
Tboil	373.90 ± 0.30	K	NIST
Tboil	373.40 ± 0.60	K	NIST
Tboil	374.05 ± 0.60	K	NIST
Tboil	373.90 ± 0.20	K	NIST
Tboil	373.35 ± 0.30	K	NIST
Tboil	374.55 ± 0.50	K	NIST
Tboil	373.85 ± 0.40	K	NIST
Tboil	376.15 ± 2.00	K	NIST
Tboil	373.80 ± 0.30	K	NIST
Tboil	374.15 ± 1.00	K	NIST
Tboil	373.75 ± 1.00	K	NIST
Tboil	374.15 ± 1.50	K	NIST
Tboil	374.15 ± 1.50	K	NIST
Tboil	373.80 ± 1.00	K	NIST
Tboil	373.75 ± 1.00	K	NIST
Tboil	373.95 ± 1.00	K	NIST
Tboil	372.00 ± 1.50	K	NIST
Tboil	373.65 ± 1.00	K	NIST
Tboil	Outlier 378.45 ± 1.00	K	NIST
Tboil	Outlier 378.45 ± 1.00	K	NIST
Tc	[577.00; 588.00]	K
Tc	588.00	K	IUPAC Vapor-Liquid Critical Properties of Elements and Compounds, part 7 Compiled value
Tc	588.00	K	PSRK revision IV (2005), critical constants and acentric factors of 1000 components Compiled value
Tc	588.00	K	ChemSep v8.3 pure component data Compiled value
Tc	588.00	K	KDB
Tc	577.00 ± 30.00	K	NIST
Tc	588.00 ± 10.00	K	NIST
Tc	580.00	K	NIST
Tfus	[280.85; 282.85]	K
Tfus	Outlier 282.85	K	Differential scanning calorimetry determination of phase diagrams and water activities of aqueous carboxylic acid solutions
Tfus	281.45	K	Jean-Claude Bradley Open Melting Point Dataset (2014, CC0) Compiled value
Tfus	281.55	K	ChemSep v8.3 pure component data Compiled value
Tfus	281.40	K	KDB
Tfus	281.42	K	NCMS SOLV-DB
Tfus	281.47 ± 0.10	K	NIST
Tfus	281.50 ± 0.30	K	NIST
Tfus	281.55 ± 0.20	K	NIST
Tfus	281.40 ± 0.05	K	NIST
Tfus	280.85 ± 0.50	K	NIST
Tfus	281.55 ± 0.10	K	NIST
Tfus	282.00 ± 1.50	K	NIST
Tfus	281.70 ± 1.50	K	NIST
Tfus	281.40 ± 0.30	K	NIST
Ttriple	[281.40; 281.45]	K
Ttriple	281.45	K	ChemSep v8.3 pure component data Compiled value
Ttriple	281.45 ± 0.10	K	NIST
Ttriple	281.40 ± 0.06	K	NIST
Ttriple	281.40 ± 0.06	K	NIST
UQi	1.53		ChemSep v8.3 pure component data Compiled value
URi	1.53		ChemSep v8.3 pure component data Compiled value
Vc	[0.118; 0.125]	m3/kmol
Vc	0.118	m3/kmol	PSRK revision IV (2005), critical constants and acentric factors of 1000 components Compiled value
Vc	0.125	m3/kmol	ChemSep v8.3 pure component data Compiled value
Vc	0.125	m3/kmol	KDB
Zc	[0.1490000; 0.1889290]
Zc	0.1490000		ChemSep v8.3 pure component data Compiled value
Zc	0.1889290		KDB
Zra	0.18		KDB

Cheméo can also estimate Log10 of Water solubility in mol/l for this compound, but it falls outside the models' validated range, so it is not shown here. Open the prediction tool to compute it on demand.

Temperature Dependent Properties

Property	Value	Unit	Temperature (K)	Source
Cp,liquid	[95.40; 100.00]	J/mol×K	[290.00; 298.15]
Cp,liquid	100.00	J/mol×K	290.00	NIST
Cp,liquid	98.30	J/mol×K	291.50	NIST
Cp,liquid	95.40	J/mol×K	298.00	NIST
Cp,liquid	99.04	J/mol×K	298.15	NIST
Cp,liquid	98.10	J/mol×K	298.15	NIST
η	[0.0006770; 0.0019660]	Pa×s	[298.15; 353.15]
η	0.0019660	Pa×s	298.15	NCMS SOLV-DB
η	0.0014370	Pa×s	303.15	Densities and Viscosities of N,N-Dimethylformamide + Formic Acid, and + Acetic Acid in the Temperature Range from (303.15 to 353.15) K
η	0.0012050	Pa×s	313.15	Densities and Viscosities of N,N-Dimethylformamide + Formic Acid, and + Acetic Acid in the Temperature Range from (303.15 to 353.15) K
η	0.0010220	Pa×s	323.15	Densities and Viscosities of N,N-Dimethylformamide + Formic Acid, and + Acetic Acid in the Temperature Range from (303.15 to 353.15) K
η	0.0008790	Pa×s	333.15	Densities and Viscosities of N,N-Dimethylformamide + Formic Acid, and + Acetic Acid in the Temperature Range from (303.15 to 353.15) K
η	0.0007660	Pa×s	343.15	Densities and Viscosities of N,N-Dimethylformamide + Formic Acid, and + Acetic Acid in the Temperature Range from (303.15 to 353.15) K
η	0.0006770	Pa×s	353.15	Densities and Viscosities of N,N-Dimethylformamide + Formic Acid, and + Acetic Acid in the Temperature Range from (303.15 to 353.15) K
ΔfusH	[12.68; 12.68]	kJ/mol	[281.40; 281.40]
ΔfusH	12.68	kJ/mol	281.40	NIST
ΔfusH	12.68	kJ/mol	281.40	NIST
ΔfusH	12.68	kJ/mol	281.40	NIST
ΔsubH	[60.10; 62.00]	kJ/mol	[210.50; 274.50]
ΔsubH	62.00 ± 1.00	kJ/mol	210.50	NIST
ΔsubH	60.10	kJ/mol	264.00	NIST
ΔsubH	60.70	kJ/mol	266.50	NIST
ΔsubH	60.50	kJ/mol	274.50	NIST
ΔvapH	[20.30; 47.70]	kJ/mol	[290.00; 373.90]
ΔvapH	36.80	kJ/mol	290.00	NIST
ΔvapH	29.60	kJ/mol	303.00	NIST
ΔvapH	20.40	kJ/mol	315.00	NIST
ΔvapH	20.30	kJ/mol	323.00	NIST
ΔvapH	20.90	kJ/mol	323.00	NIST
ΔvapH	47.70	kJ/mol	334.50	NIST
ΔvapH	21.10	kJ/mol	338.00	NIST
ΔvapH	35.20	kJ/mol	342.00	NIST
ΔvapH	35.20	kJ/mol	346.00	NIST
ΔvapH	22.69	kJ/mol	373.80	NIST
ΔvapH	21.92	kJ/mol	373.90	KDB
Pvap	[5.68; 200.60]	kPa	[298.15; 398.15]
Pvap	5.68	kPa	298.15	NCMS SOLV-DB
Pvap	153.70	kPa	388.15	Isobaric and Isothermal Vapor Liquid Equilibria for the Binary System of Water + Formic Acid at 99.41 kPa, 388.15 K, and 398.15 K
Pvap	200.60	kPa	398.15	Isobaric and Isothermal Vapor Liquid Equilibria for the Binary System of Water + Formic Acid at 99.41 kPa, 388.15 K, and 398.15 K
n0	[1.36900; 1.37459]		[293.10; 298.20]
n0	1.37200		293.10	Phase Equilibria of Binary Systems Comprising Formic Acid, N,N-Dimethylformamide, 1-Chloro-2-ethylhexane, and 2-Ethyl-1-hexanol
n0	1.37110		293.15	Liquid liquid equilibria of ternary systems (water + carboxylic acid + cumene) at 298.15K
n0	1.37110		293.20	Liquid-liquid equilibrium data for systems containing of formic acid, water, and primary normal alcohols at T = 298.2 K
n0	1.37140		293.20	Vapor Liquid Equilibrium of Gamma-Valerolactone and Formic Acid at p = 51 kPa
n0	1.37100		293.20	Experimental and Correlational Study of Phase Equilibria in Aqueous Solutions of Formic and Butyric Acids with Isoamyl Acetate and Methyl Isoamyl Ketone at T = 298.15 K
n0	1.37459		298.15	Refractive Index, Surface Tension, and Density of Aqueous Mixtures of Carboxylic Acids at 298.15 K
n0	1.36900		298.15	NCMS SOLV-DB
n0	1.37130		298.20	Tie-line data for water- formic acid-1-decanol ternary system at T = (298.2, 303.2, 313.2, 323.2) K
n0	1.36990		298.20	Vapor Liquid Equilibrium of Gamma-Valerolactone and Formic Acid at p = 51 kPa
ρl	[1214.10; 1226.00]	kg/m3	[288.00; 298.20]
ρl	1226.00	kg/m3	288.00	KDB
ρl	1218.50	kg/m3	293.15	Phase equilibrium of (water + formic or acetic acid + ethyl heptanoate) ternary liquid systems at different temperatures
ρl	1219.50	kg/m3	298.15	Liquid Phase Equilibria of Aqueous Mixtures of Carboxylic Acids (C1-C4) with Ethylbenzene: Thermodynamic and Mathematical Modeling
ρl	1220.04	kg/m3	298.20	(Liquid + liquid) equilibria of the (water + carboxylic acid + dibasic esters mixture (DBE-2)) ternary systems
ρl	1214.10	kg/m3	298.20	Modeling phase equilibria of ternary systems (water + formic acid + ester or alcohol) through UNIFAC-original, SERLAS, NRTL, NRTL-modified, and three-suffix Margules: Parameter estimation using genetic algorithm
ρl	1220.04	kg/m3	298.20	Liquid Phase Equilibria of Water + Formic Acid + Dimethyl Carbonate Ternary System at Several Temperatures
ΔfusS	[45.05; 45.05]	J/mol×K	[281.40; 281.40]
ΔfusS	45.05	J/mol×K	281.40	NIST
ΔfusS	45.05	J/mol×K	281.40	NIST
γ	[0.04; 0.04]	N/m	[293.20; 298.15]
γ	0.04	N/m	293.20	KDB
γ	0.04	N/m	298.15	NCMS SOLV-DB

Correlations

Property	Value	Unit	Temperature (K)	Source
Cp,gas	[32.00; 99.11]	J/mol×K	[50.00; 1500.00]	ChemSep v8.3 pure component data Compiled value
Equation			Y = A + exp(B/T + C + D·T + E·T²) Y is Cp,gas in J/mol×K, T in K
Coefficient A			3.20000e+01
Coefficient B			-5.50000e+02
Coefficient C			4.57300e+00
Coefficient D			0.00000e+00
Coefficient E			0.00000e+00
Temperature range, min.			50.00
Temperature range, max.			1500.00
Cp,gas	32.00	J/mol×K	50.00	Calculated Property
Cp,gas	39.15	J/mol×K	211.11	Calculated Property
Cp,gas	54.10	J/mol×K	372.22	Calculated Property
Cp,gas	66.53	J/mol×K	533.33	Calculated Property
Cp,gas	75.86	J/mol×K	694.44	Calculated Property
Cp,gas	82.91	J/mol×K	855.56	Calculated Property
Cp,gas	88.37	J/mol×K	1016.67	Calculated Property
Cp,gas	92.70	J/mol×K	1177.78	Calculated Property
Cp,gas	96.21	J/mol×K	1338.89	Calculated Property
Cp,gas	99.11	J/mol×K	1500.00	Calculated Property

Property	Value	Unit	Temperature (K)	Source
Cp,liquid	[98.19; 105.25]	J/mol×K	[281.45; 380.00]	ChemSep v8.3 pure component data Compiled value
Equation			Y = A + B·T + C·T² + D·T³ + E·T⁴ Y is Cp,liquid in J/mol×K, T in K
Coefficient A			7.80600e+01
Coefficient B			7.15400e-02
Coefficient C			0.00000e+00
Coefficient D			0.00000e+00
Coefficient E			0.00000e+00
Temperature range, min.			281.45
Temperature range, max.			380.00
Cp,liquid	98.19	J/mol×K	281.45	Calculated Property
Cp,liquid	98.98	J/mol×K	292.40	Calculated Property
Cp,liquid	99.76	J/mol×K	303.35	Calculated Property
Cp,liquid	100.55	J/mol×K	314.30	Calculated Property
Cp,liquid	101.33	J/mol×K	325.25	Calculated Property
Cp,liquid	102.11	J/mol×K	336.20	Calculated Property
Cp,liquid	102.90	J/mol×K	347.15	Calculated Property
Cp,liquid	103.68	J/mol×K	358.10	Calculated Property
Cp,liquid	104.46	J/mol×K	369.05	Calculated Property
Cp,liquid	105.25	J/mol×K	380.00	Calculated Property

Property	Value	Unit	Temperature (K)	Source
η	[0.0023193; 0.0005444]	Pa×s	[281.45; 373.71]	ChemSep v8.3 pure component data Compiled value
Equation			Y = exp(A + B/T + C·ln(T) + D·T^E) Y is η in Pa×s, T in K
Coefficient A			-4.85290e+01
Coefficient B			3.39470e+03
Coefficient C			5.39030e+00
Coefficient D			0.00000e+00
Coefficient E			0.00000e+00
Temperature range, min.			281.45
Temperature range, max.			373.71
η	0.0023193	Pa×s	281.45	Calculated Property
η	0.0018409	Pa×s	291.70	Calculated Property
η	0.0014938	Pa×s	301.95	Calculated Property
η	0.0012363	Pa×s	312.20	Calculated Property
η	0.0010414	Pa×s	322.45	Calculated Property
η	0.0008913	Pa×s	332.71	Calculated Property
η	0.0007738	Pa×s	342.96	Calculated Property
η	0.0006805	Pa×s	353.21	Calculated Property
η	0.0006054	Pa×s	363.46	Calculated Property
η	0.0005444	Pa×s	373.71	Calculated Property

Property	Value	Unit	Temperature (K)	Source
ΔvapH	[18.87; 0.00]	kJ/mol	[250.00; 588.00]	ChemSep v8.3 pure component data Compiled value
Equation			Y = A·(1 − Tr)^(B + C·Tr + D·Tr² + E·Tr³), Tr = T/Tc Y is ΔvapH in kJ/mol, T in K
Coefficient A			2.31950e+01
Coefficient B			1.90910e+00
Coefficient C			-5.00030e+00
Coefficient D			3.26410e+00
Coefficient E			0.00000e+00
Critical temperature, Tc (K)			5.88000e+02
Temperature range, min.			250.00
Temperature range, max.			588.00
ΔvapH	18.87	kJ/mol	250.00	Calculated Property
ΔvapH	19.68	kJ/mol	287.56	Calculated Property
ΔvapH	20.69	kJ/mol	325.11	Calculated Property
ΔvapH	21.76	kJ/mol	362.67	Calculated Property
ΔvapH	22.73	kJ/mol	400.22	Calculated Property
ΔvapH	23.33	kJ/mol	437.78	Calculated Property
ΔvapH	23.20	kJ/mol	475.33	Calculated Property
ΔvapH	21.76	kJ/mol	512.89	Calculated Property
ΔvapH	18.18	kJ/mol	550.44	Calculated Property
ΔvapH	0.00	kJ/mol	588.00	Calculated Property

Property	Value	Unit	Temperature (K)	Source
Pvap	[1.11; 5728.73]	kPa	[281.55; 588.00]	The Yaws Handbook of Vapor Pressure
Equation			ln(Y) = A + B/(T + C) Y is Pvap in kPa, T in K
Coefficient A			1.40203e+01
Coefficient B			-2.67757e+03
Coefficient C			-8.91130e+01
Temperature range, min.			281.55
Temperature range, max.			588.00
Pvap	1.11	kPa	281.55	Calculated Property
Pvap	9.01	kPa	315.60	Calculated Property
Pvap	42.23	kPa	349.65	Calculated Property
Pvap	138.53	kPa	383.70	Calculated Property
Pvap	355.26	kPa	417.75	Calculated Property
Pvap	763.37	kPa	451.80	Calculated Property
Pvap	1438.50	kPa	485.85	Calculated Property
Pvap	2452.36	kPa	519.90	Calculated Property
Pvap	3866.49	kPa	553.95	Calculated Property
Pvap	5728.73	kPa	588.00	Calculated Property
Pvap	[2.41; 5811.37]	kPa	[281.45; 588.00]	ChemSep v8.3 pure component data Compiled value
Equation			Y = exp(A + B/T + C·ln(T) + D·T^E) Y is Pvap in kPa, T in K
Coefficient A			3.68992e+01
Coefficient B			-5.13100e+03
Coefficient C			-3.18780e+00
Coefficient D			2.37820e-06
Coefficient E			2.00000e+00
Temperature range, min.			281.45
Temperature range, max.			588.00
Pvap	2.41	kPa	281.45	Calculated Property
Pvap	12.56	kPa	315.51	Calculated Property
Pvap	46.61	kPa	349.57	Calculated Property
Pvap	135.38	kPa	383.63	Calculated Property
Pvap	327.83	kPa	417.69	Calculated Property
Pvap	691.74	kPa	451.76	Calculated Property
Pvap	1312.58	kPa	485.82	Calculated Property
Pvap	2291.99	kPa	519.88	Calculated Property
Pvap	3747.07	kPa	553.94	Calculated Property
Pvap	5811.37	kPa	588.00	Calculated Property
Pvap	[1.27; 7465.38]	kPa	[271.00; 580.00]	KDB Vapor Pressure Data
Equation			ln(Y) = A + B/T + C·ln(T) + D·T² + E/T² Y is Pvap in kPa, T in K
Coefficient A			7.89044e+01
Coefficient B			-6.67745e+03
Coefficient C			-9.79394e+00
Coefficient D			1.14316e-05
Coefficient E			0.00000e+00
Temperature range, min.			271.00
Temperature range, max.			580.00
Pvap	1.27	kPa	271.00	Calculated Property
Pvap	7.89	kPa	305.33	Calculated Property
Pvap	32.65	kPa	339.67	Calculated Property
Pvap	102.25	kPa	374.00	Calculated Property
Pvap	263.89	kPa	408.33	Calculated Property
Pvap	594.18	kPa	442.67	Calculated Property
Pvap	1214.74	kPa	477.00	Calculated Property
Pvap	2320.20	kPa	511.33	Calculated Property
Pvap	4227.89	kPa	545.67	Calculated Property
Pvap	7465.38	kPa	580.00	Calculated Property
Pvap	[1.47; 8.62]	kPa	[273.70; 307.40]	NIST
Equation			ln(Y) = A + B/(T + C) Y is Pvap in kPa, T in K
Coefficient A			9.21313e+00
Coefficient B			-1.18583e+03
Coefficient C			-1.39408e+02
Reference			Kahlbaum, 1894, 2
Comment			Coefficents calculated by NIST from author's data.
Temperature range, min.			273.70
Temperature range, max.			307.40
Pvap	1.47	kPa	273.70	Calculated Property
Pvap	1.86	kPa	277.44	Calculated Property
Pvap	2.34	kPa	281.19	Calculated Property
Pvap	2.90	kPa	284.93	Calculated Property
Pvap	3.56	kPa	288.68	Calculated Property
Pvap	4.32	kPa	292.42	Calculated Property
Pvap	5.20	kPa	296.17	Calculated Property
Pvap	6.20	kPa	299.91	Calculated Property
Pvap	7.34	kPa	303.66	Calculated Property
Pvap	8.62	kPa	307.40	Calculated Property
Pvap	[1.47; 8.62]	kPa	[273.70; 307.40]	NIST
Equation			ln(Y) = A + B/(T + C) Y is Pvap in kPa, T in K
Coefficient A			9.21313e+00
Coefficient B			-1.18583e+03
Coefficient C			-1.39408e+02
Reference			Kahlbaum, 1894
Comment			Coefficents calculated by NIST from author's data.
Temperature range, min.			273.70
Temperature range, max.			307.40
Pvap	1.47	kPa	273.70	Calculated Property
Pvap	1.86	kPa	277.44	Calculated Property
Pvap	2.34	kPa	281.19	Calculated Property
Pvap	2.90	kPa	284.93	Calculated Property
Pvap	3.56	kPa	288.68	Calculated Property
Pvap	4.32	kPa	292.42	Calculated Property
Pvap	5.20	kPa	296.17	Calculated Property
Pvap	6.20	kPa	299.91	Calculated Property
Pvap	7.34	kPa	303.66	Calculated Property
Pvap	8.62	kPa	307.40	Calculated Property

Property	Value	Unit	Temperature (K)	Source
ρl	[1233.76; 368.21]	kg/m3	[281.45; 588.00]	ChemSep v8.3 pure component data Compiled value
Equation			Y = A / B^(1 + (1 − T/C)^D) Y is ρl in kg/m3, T in K
Coefficient A			8.91978e+01
Coefficient B			2.42250e-01
Coefficient C			5.88000e+02
Coefficient D			2.44350e-01
Temperature range, min.			281.45
Temperature range, max.			588.00
ρl	1233.76	kg/m3	281.45	Calculated Property
ρl	1192.15	kg/m3	315.51	Calculated Property
ρl	1148.02	kg/m3	349.57	Calculated Property
ρl	1100.77	kg/m3	383.63	Calculated Property
ρl	1049.47	kg/m3	417.69	Calculated Property
ρl	992.73	kg/m3	451.76	Calculated Property
ρl	928.10	kg/m3	485.82	Calculated Property
ρl	850.59	kg/m3	519.88	Calculated Property
ρl	746.56	kg/m3	553.94	Calculated Property
ρl	368.21	kg/m3	588.00	Calculated Property

Property	Value	Unit	Temperature (K)	Source
γ	[0.04; 0.03]	N/m	[281.15; 374.15]	Jasper (1972), surface tension of pure liquid compounds Compiled value
Equation			Y = A + B·T + C·T² + D·T³ + E·T⁴ Y is γ in N/m, T in K
Coefficient A			6.98619e-02
Coefficient B			-1.09800e-04
Coefficient C			0.00000e+00
Coefficient D			0.00000e+00
Coefficient E			0.00000e+00
Temperature range, min.			281.15
Temperature range, max.			374.15
γ	0.04	N/m	281.15	Calculated Property
γ	0.04	N/m	291.48	Calculated Property
γ	0.04	N/m	301.82	Calculated Property
γ	0.04	N/m	312.15	Calculated Property
γ	0.03	N/m	322.48	Calculated Property
γ	0.03	N/m	332.82	Calculated Property
γ	0.03	N/m	343.15	Calculated Property
γ	0.03	N/m	353.48	Calculated Property
γ	0.03	N/m	363.82	Calculated Property
γ	0.03	N/m	374.15	Calculated Property
γ	[0.04; 1.67e-05]	N/m	[281.45; 587.69]	ChemSep v8.3 pure component data Compiled value
Equation			Y = A + B·T + C·T² + D·T³ + E·T⁴ Y is γ in N/m, T in K
Coefficient A			5.72650e-02
Coefficient B			-2.87880e-05
Coefficient C			-1.44110e-07
Coefficient D			4.65240e-11
Coefficient E			0.00000e+00
Comment			Range stopped where the equation turns negative; ChemSep gives it to 588 K.
Temperature range, min.			281.45
Temperature range, max.			587.69
γ	0.04	N/m	281.45	Calculated Property
γ	0.04	N/m	315.48	Calculated Property
γ	0.03	N/m	349.50	Calculated Property
γ	0.03	N/m	383.53	Calculated Property
γ	0.02	N/m	417.56	Calculated Property
γ	0.02	N/m	451.59	Calculated Property
γ	0.01	N/m	485.61	Calculated Property
γ	0.01	N/m	519.64	Calculated Property
γ	0.01	N/m	553.67	Calculated Property
γ	1.67e-05	N/m	587.69	Calculated Property

Property	Value	Unit	Temperature (K)	Source
λgas	[0.09; 0.07]	W/m×K	[420.00; 470.00]	ChemSep v8.3 pure component data Compiled value
Equation			Y = A + B·T + C·T² + D·T³ + E·T⁴ Y is λgas in W/m×K, T in K
Coefficient A			-8.30300e-01
Coefficient B			4.61410e-03
Coefficient C			-5.74660e-06
Coefficient D			0.00000e+00
Coefficient E			0.00000e+00
Temperature range, min.			420.00
Temperature range, max.			470.00
λgas	0.09	W/m×K	420.00	Calculated Property
λgas	0.09	W/m×K	425.56	Calculated Property
λgas	0.09	W/m×K	431.11	Calculated Property
λgas	0.09	W/m×K	436.67	Calculated Property
λgas	0.09	W/m×K	442.22	Calculated Property
λgas	0.08	W/m×K	447.78	Calculated Property
λgas	0.08	W/m×K	453.33	Calculated Property
λgas	0.08	W/m×K	458.89	Calculated Property
λgas	0.07	W/m×K	464.44	Calculated Property
λgas	0.07	W/m×K	470.00	Calculated Property

Property	Value	Unit	Temperature (K)	Source
λliquid	[0.27; 0.26]	W/m×K	[281.45; 373.71]	ChemSep v8.3 pure component data Compiled value
Equation			Y = A + B·T + C·T² + D·T³ + E·T⁴ Y is λliquid in W/m×K, T in K
Coefficient A			3.02000e-01
Coefficient B			-1.08000e-04
Coefficient C			0.00000e+00
Coefficient D			0.00000e+00
Coefficient E			0.00000e+00
Temperature range, min.			281.45
Temperature range, max.			373.71
λliquid	0.27	W/m×K	281.45	Calculated Property
λliquid	0.27	W/m×K	291.70	Calculated Property
λliquid	0.27	W/m×K	301.95	Calculated Property
λliquid	0.27	W/m×K	312.20	Calculated Property
λliquid	0.27	W/m×K	322.45	Calculated Property
λliquid	0.27	W/m×K	332.71	Calculated Property
λliquid	0.26	W/m×K	342.96	Calculated Property
λliquid	0.26	W/m×K	353.21	Calculated Property
λliquid	0.26	W/m×K	363.46	Calculated Property
λliquid	0.26	W/m×K	373.71	Calculated Property

Similar Compounds

Find more compounds similar to Formic acid.

Mixtures

• Decanedioic acid, diethyl ester + Formic acid + Water
• Formic acid + Butanedioic acid, diethyl ester + Water
• Formic acid + Octanoic acid, ethyl ester + Water
• Pentanoic acid, ethyl ester + Formic acid + Water
• 1-Butanol, 3-methyl- + Formic acid + Water
• Heptanoic acid, ethyl ester + Formic acid + Water
• Formic acid + 1-Butanol + Dibenzothiophene
• 2-Pyrrolidinone, 1-methyl- + Formic acid + Water
• Formic acid + Acetic acid
• Formic acid + Butanoic acid
• Formic acid + Propanoic acid
• Formic acid + Pentanoic acid
• Formic acid + 1-Octanol + Water
• Formic acid + Water
• Diethyl carbonate + Formic acid + Water
• Diethyl malonate + Formic acid + Water
• Formic acid + Diethyl fumarate + Water
• Formic acid + 2-Butenedioic acid (Z)-, dimethyl ester + Water
• 1-Undecanol + Formic acid + Water
• Formic acid + 1-Butanol + Water

Find more mixtures with Formic acid.

Sources

• KDB Vapor Pressure Data
• Jean-Claude Bradley Open Melting Point Dataset (2014, CC0) ChEDL chemicals 1.5.2, from Bradley, J.-C.; Williams, A.; Lang, A. Jean-Claude Bradley Open Melting Point Dataset. Figshare, 2014 (CC0).
• IUPAC Vapor-Liquid Critical Properties of Elements and Compounds, part 7 ChEDL chemicals 1.5.2, from Kudchadker, A. P.; Ambrose, D.; Tsonopoulos, C. Vapor-Liquid Critical Properties of Elements and Compounds. 7. Oxygen Compounds Other Than Alkanols and Cycloalkanols. J. Chem. Eng. Data 2001, 46, 457-479.
• Jasper (1972), surface tension of pure liquid compounds ChEDL chemicals 1.5.2, from Jasper, J. J. The Surface Tension of Pure Liquid Compounds. J. Phys. Chem. Ref. Data 1972, 1, 841-1010 (as transcribed in Lange's Handbook).
• PSRK revision IV (2005), critical constants and acentric factors of 1000 components ChEDL chemicals 1.5.2, from Horstmann, S.; Jabłoniec, A.; Krafczyk, J.; Fischer, K.; Gmehling, J. PSRK Group Contribution Equation of State: Comprehensive Revision and Extension IV, Including Critical Constants and α-Function Parameters for 1000 Components. Fluid Phase Equilib. 2005, 227, 157-164.
• ChemSep v8.3 pure component data Converted from ChemSep v8.3 pure component data, H. Kooijman and R. Taylor (2021, 2022), Artistic License 2.0; see how the values differ.
• Crippen Method
• Liquid-liquid equilibria for ternary systems of (water + carboxylic acid + 1-octanol) at 293.15 K: modeling phase equilibria using a solvatochromic approach
• Liquid liquid equilibria of ternary systems (water + carboxylic acid + cumene) at 298.15K
• Determination and correlation of liquid liquid equilibria for the (water + carboxylic acid + dimethyl maleate) ternary systems at T = 298.2K
• Liquid phase equilibria of (water + formic acid + diethyl carbonate or diethyl malonate or diethyl fumarate) ternary systems at 298.15K and atmospheric pressure
• Phase equilibria of (water + carboxylic acid + diethyl maleate) ternary liquid systems at 298.15 K
• Quaternary phase equilibrium of water-carboxylic acid mixture (formic-propionic acid or acetic-propionic acid)-solvent liquid systems at 298.15 K
• Experiment and correlation of osmotic coefficient for aqueous solution of carboxylic acids using NRTL nonrandom factor model
• Ternary liquid-liquid phase equilibria of (water-carboxylic acid-1-undecanol) systems at 298.15 K
• Liquid-liquid equilibrium data for systems containing of formic acid, water, and primary normal alcohols at T = 298.2 K
• Phase equilibrium of (water + formic or acetic acid + ethyl heptanoate) ternary liquid systems at different temperatures
• (Liquid + liquid) equilibria of the (water + carboxylic acid + dibasic esters mixture (DBE-2)) ternary systems
• Temperature dependent solubility of sodium cyclamate in selected pure solvents and binary methanol + water mixed solvents
• Thermodynamic analysis for determination of solid - liquid equilibrium of dibenzothiophene in a binary solvent of formic acid and butan-1-ol between (278.15 and 333.15) K
• Liquid-liquid equilibrium data for water + formic acid + solvent (butyl acetate, ethyl acetate, and isoamyl alcohol) at T = 291.15 K
• Modeling phase equilibria of ternary systems (water + formic acid + ester or alcohol) through UNIFAC-original, SERLAS, NRTL, NRTL-modified, and three-suffix Margules: Parameter estimation using genetic algorithm
• Understanding ion-ion and ion-solvent interactions in aqueous solutions of NMP based protic ionic liquids through partial molar properties and DFT calculations
• Solubility, liquid-liquid equilibrium and critical states for the quaternary system formic acid - ethanol - ethyl formate - water at 298.15 K and 308.15 K
• Differential scanning calorimetry determination of Solid-Liquid equilibria phase diagrams for binary monocarboxylic acids solutions
• Solubility of Dihydroxylammonium 5,5'-Bistetrazole-1,1'-diolate in (formic acid, water) and their binary solvents from 298.15 K to 333.15 K at 101.1 kPa
• Tie-line data for water- formic acid-1-decanol ternary system at T = (298.2, 303.2, 313.2, 323.2) K
• Differential scanning calorimetry determination of phase diagrams and water activities of aqueous carboxylic acid solutions
• Mutual Solubilities for the Water 2-sec-Butylphenol System and Partition Coefficients for Furfural and Formic Acid in the Water 2-sec-Butylphenol System
• Measurement and Correlation of the Solubility of Sodium 2- Chlorotoluene-4-sulfonate in Selected Pure Solvents and Aqueous Organic Solutions
• Solubilities of Dihydroxylammonium 5,5'-Bistetrazole-1,1'-diolate in Various Pure Solvents at Temperatures Between 293.15 and 323.15 K
• Influence of Salt on the Solubility and Tie-Line Data for Water + Formic Acid + Methyl Isobutyl Ketone at T = 298.15 K
• Liquid Phase Equilibria of Aqueous Mixtures of Carboxylic Acids (C1-C4) with Ethylbenzene: Thermodynamic and Mathematical Modeling
• Isobaric and Isothermal Vapor Liquid Equilibria for the Binary System of Water + Formic Acid at 99.41 kPa, 388.15 K, and 398.15 K
• Vapor Liquid Equilibrium of Gamma-Valerolactone and Formic Acid at p = 51 kPa
• Study on the Solubilities of Mononitro-Substituted Products of Nitration of m-Toluic Acid in Several Solvents at Temperatures between 297.65 and 351.75 K
• Liquid-Liquid Equilibria of Formic Acid and Furfural in a Biphasic Aqueous-Organic System: Optimization of Solvent and Amine Extractant
• Measurement and Modeling of Solid-Liquid Equilibria of l-Glutamic Acid in Pure Solvents and Aqueous Binary Mixtures
• Liquid Viscosity and Interfacial Tension of Binary and Ternary Mixtures Containing n-Octacosane by Surface Light Scattering
• Solubilities of 2,6-Dimethylnaphthalene in Six Pure Solvents and Two Binary Solvent Systems
• Refractive Index, Surface Tension, and Density of Aqueous Mixtures of Carboxylic Acids at 298.15 K
• Solubility of Forms I and II of Clopidogrel Hydrogen Sulfate in Formic Acid, N-Methylpyrrolidone, and N,N-Dimethylformamide
• Experimental and Correlational Study of Phase Equilibria in Aqueous Solutions of Formic and Butyric Acids with Isoamyl Acetate and Methyl Isoamyl Ketone at T = 298.15 K
• Liquid Phase Equilibria of Water + Formic Acid + Dimethyl Carbonate Ternary System at Several Temperatures
• Thermodynamic Models for Determination of the Solubility of Dibenzothiophene in Different Solvents at Temperatures from (278.15 to 328.15) K
• Thermodynamic Models for Determination of the Solubility of Sulfanilic Acid in Different Solvents at Temperatures from (278.15 to 328.15) K
• Liquid-Liquid Equilibria for Ternary Systems of Water + Formic Acid + Dibasic Esters
• Salt Effect on the Enthalpy of Mixing of 1,4-Dioxane + Formic Acid at 303.15 K
• Densities and Viscosities of N,N-Dimethylformamide + Formic Acid, and + Acetic Acid in the Temperature Range from (303.15 to 353.15) K
• Phase Equilibria of Binary Systems Comprising Formic Acid, N,N-Dimethylformamide, 1-Chloro-2-ethylhexane, and 2-Ethyl-1-hexanol
• Effect of Dissolved Salts on the Enthalpy of Mixing of the Methanol + Formic Acid System at 303.15 K
• Dilute Aqueous Solutions with Formate Ions: A Conductometric Study
• Joback Method
• KDB
• McGowan Method
• NIST Webbook
• NCMS SOLV-DB
• The Yaws Handbook of Vapor Pressure

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