Chemical Properties of nitric acid (CAS 7697-37-2)

InChI

InChI=1S/HNO3/c2-1(3)4/h(H,2,3,4)

InChI Key

GRYLNZFGIOXLOG-UHFFFAOYSA-N

Formula

HNO3

SMILES

O=[N+]([O-])O

Molecular Weight¹

63.01

CAS

7697-37-2

Other Names

• AZOTIC ACID
• hydrogen nitrate

• ω : Acentric Factor.
• PAff : Proton affinity (kJ/mol).
• BasG : Gas basicity (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).
• EA : Electron affinity (eV).
• Δ_fG° : Standard Gibbs free energy of formation (kJ/mol).
• Δ_fH°_gas : Enthalpy of formation at standard conditions (kJ/mol).
• Δ_fusH° : Enthalpy of fusion at standard conditions (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).
• log₁₀WS : Log10 of Water solubility in mol/l.
• logP_oct/wat : Octanol/Water partition coefficient.
• McVol : McGowan's characteristic volume (ml/mol).
• NFPA Health : NFPA Health Rating.
• NFPA Safety : NFPA Safety Rating.
• P_c : Critical Pressure (kPa).
• P_triple : Triple Point Pressure (kPa).
• P_vap : Vapor pressure (kPa).
• ρ_l : Liquid Density (kg/m³).
• γ : Surface Tension (N/m).
• T_boil : Normal Boiling Point Temperature (K).
• T_c : Critical Temperature (K).
• λ : Gas thermal conductivity (W/m×K).
• λ : 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.
• ¹: Molecular weight from the IUPAC atomic weights tables.

Physical Properties

Property	Value	Unit	Source
ω	0.7144		ChemSep v8.3 pure component data
PAff	[670.30; 751.40]	kJ/mol
PAff	751.40	kJ/mol	NIST
PAff	670.30	kJ/mol	NIST
BasG	731.50	kJ/mol	NIST
μ	2.17	debye	ChemSep v8.3 pure component data
EA	[0.56; 0.57]	eV
EA	0.57 ± 0.15	eV	NIST
EA	0.56 ± 0.17	eV	NIST
ΔfG°	-74.01	kJ/mol	ChemSep v8.3 pure component data
ΔfH°gas	-134.30	kJ/mol	ChemSep v8.3 pure component data
ΔfusH°	11.21	kJ/mol	Joback Calculated Property
ΔvapH°	53.24	kJ/mol	Relay (1.0) Calculated Property
IE	[11.03; 12.20]	eV
IE	11.95 ± 0.01	eV	NIST
IE	11.96	eV	NIST
IE	11.03 ± 0.01	eV	NIST
IE	12.20	eV	NIST
log10WS	1.44		Relay (1.0) Calculated Property
logPoct/wat	-0.348		Crippen Calculated Property
McVol	34.150	ml/mol	McGowan Calculated Property
NFPA Health	2		KDB
NFPA Safety	1		KDB
Pc	6890.10	kPa	ChemSep v8.3 pure component data
Ptriple	0.06	kPa	ChemSep v8.3 pure component data
Tboil	356.15	K	ChemSep v8.3 pure component data
Tc	520.00	K	ChemSep v8.3 pure component data
Tfus	231.55	K	ChemSep v8.3 pure component data
Ttriple	231.55	K	ChemSep v8.3 pure component data
UQi	1.56		ChemSep v8.3 pure component data
URi	1.64		ChemSep v8.3 pure component data
Vc	0.145	m3/kmol	ChemSep v8.3 pure component data
Zc	0.2310000		ChemSep v8.3 pure component data

Temperature Dependent Properties

Property	Value	Unit	Temperature (K)	Source
ΔvapH	38.60	kJ/mol	314.50	NIST

Correlations

Property	Value	Unit	Temperature (K)	Source
Cp,gas	[33.64; 97.66]	J/mol×K	[100.00; 1500.00]	ChemSep v8.3 pure component data
Equation			Y = A + exp(B/T + C + D·T + E·T²) Y is Cp,gas in J/mol×K, T in K
Coefficient A			3.26390e+01
Coefficient B			-4.63060e+02
Coefficient C			4.63924e+00
Coefficient D			-1.10180e-04
Coefficient E			4.18010e-09
Comment			ChemSep eq 16, IdealGasHeatCapacityCp
Temperature range, min.			100.00
Temperature range, max.			1500.00
Cp,gas	33.64	J/mol×K	100.00	Calculated Property
Cp,gas	49.07	J/mol×K	255.56	Calculated Property
Cp,gas	64.72	J/mol×K	411.11	Calculated Property
Cp,gas	75.63	J/mol×K	566.67	Calculated Property
Cp,gas	83.07	J/mol×K	722.22	Calculated Property
Cp,gas	88.24	J/mol×K	877.78	Calculated Property
Cp,gas	91.89	J/mol×K	1033.33	Calculated Property
Cp,gas	94.49	J/mol×K	1188.89	Calculated Property
Cp,gas	96.34	J/mol×K	1344.44	Calculated Property
Cp,gas	97.66	J/mol×K	1500.00	Calculated Property
Cp,gas	[53.29; 94.22]	J/mol×K	[298.00; 1200.00]	NIST
Equation			Y = A + B·t + C·t² + D·t³ + E/t², t = T/1000 Y is Cp,gas in J/mol×K, T in K
Coefficient A			1.96323e+01
Coefficient B			1.53960e+02
Coefficient C			-1.15838e+02
Coefficient D			3.28796e+01
Coefficient E			-2.49114e-01
Reference			Chase, 1998
Comment			F=-146.8818, G=247.7049, H=-134.3060; Data last reviewed in June, 1963
Temperature range, min.			298.00
Temperature range, max.			1200.00
Cp,gas	53.29	J/mol×K	298.00	Calculated Property
Cp,gas	63.08	J/mol×K	398.22	Calculated Property
Cp,gas	70.66	J/mol×K	498.44	Calculated Property
Cp,gas	76.65	J/mol×K	598.67	Calculated Property
Cp,gas	81.37	J/mol×K	698.89	Calculated Property
Cp,gas	85.08	J/mol×K	799.11	Calculated Property
Cp,gas	88.01	J/mol×K	899.33	Calculated Property
Cp,gas	90.38	J/mol×K	999.56	Calculated Property
Cp,gas	92.38	J/mol×K	1099.78	Calculated Property
Cp,gas	94.22	J/mol×K	1200.00	Calculated Property
Cp,gas	[94.07; 107.30]	J/mol×K	[1200.00; 6000.00]	NIST
Equation			Y = A + B·t + C·t² + D·t³ + E/t², t = T/1000 Y is Cp,gas in J/mol×K, T in K
Coefficient A			9.74596e+01
Coefficient B			5.42958e+00
Coefficient C			-1.02969e+00
Coefficient D			6.79500e-02
Coefficient E			-1.22931e+01
Reference			Chase, 1998
Comment			F=-192.4912, G=343.8051, H=-134.3060; Data last reviewed in June, 1963
Temperature range, min.			1200.00
Temperature range, max.			6000.00
Cp,gas	94.07	J/mol×K	1200.00	Calculated Property
Cp,gas	100.04	J/mol×K	1733.33	Calculated Property
Cp,gas	102.87	J/mol×K	2266.67	Calculated Property
Cp,gas	104.51	J/mol×K	2800.00	Calculated Property
Cp,gas	105.53	J/mol×K	3333.33	Calculated Property
Cp,gas	106.17	J/mol×K	3866.67	Calculated Property
Cp,gas	106.57	J/mol×K	4400.00	Calculated Property
Cp,gas	106.84	J/mol×K	4933.33	Calculated Property
Cp,gas	107.06	J/mol×K	5466.67	Calculated Property
Cp,gas	107.30	J/mol×K	6000.00	Calculated Property

Property	Value	Unit	Temperature (K)	Source
Cp,liquid	[111.11; 111.11]	J/mol×K	[238.57; 302.89]	ChemSep v8.3 pure component data
Equation			Y = A + exp(B/T + C + D·T + E·T²) Y is Cp,liquid in J/mol×K, T in K
Coefficient A			1.11110e+02
Coefficient B			-6.11570e+02
Coefficient C			-9.62796e+00
Coefficient D			1.42860e-02
Coefficient E			-3.39050e-05
Comment			ChemSep eq 16, LiquidHeatCapacityCp
Temperature range, min.			238.57
Temperature range, max.			302.89
Cp,liquid	111.11	J/mol×K	238.57	Calculated Property
Cp,liquid	111.11	J/mol×K	245.72	Calculated Property
Cp,liquid	111.11	J/mol×K	252.86	Calculated Property
Cp,liquid	111.11	J/mol×K	260.01	Calculated Property
Cp,liquid	111.11	J/mol×K	267.16	Calculated Property
Cp,liquid	111.11	J/mol×K	274.30	Calculated Property
Cp,liquid	111.11	J/mol×K	281.45	Calculated Property
Cp,liquid	111.11	J/mol×K	288.60	Calculated Property
Cp,liquid	111.11	J/mol×K	295.74	Calculated Property
Cp,liquid	111.11	J/mol×K	302.89	Calculated Property

Property	Value	Unit	Temperature (K)	Source
η	[0.0011738; 0.0004103]	Pa×s	[273.15; 367.90]	ChemSep v8.3 pure component data
Equation			Y = exp(A + B/T + C·ln(T) + D·T^E) Y is η in Pa×s, T in K
Coefficient A			2.64290e+02
Coefficient B			-7.98500e+03
Coefficient C			-4.40990e+01
Coefficient D			7.49470e-05
Coefficient E			2.00000e+00
Comment			ChemSep eq 101, LiquidViscosity
Temperature range, min.			273.15
Temperature range, max.			367.90
η	0.0011738	Pa×s	273.15	Calculated Property
η	0.0010169	Pa×s	283.68	Calculated Property
η	0.0008808	Pa×s	294.21	Calculated Property
η	0.0007655	Pa×s	304.73	Calculated Property
η	0.0006698	Pa×s	315.26	Calculated Property
η	0.0005915	Pa×s	325.79	Calculated Property
η	0.0005284	Pa×s	336.32	Calculated Property
η	0.0004783	Pa×s	346.84	Calculated Property
η	0.0004394	Pa×s	357.37	Calculated Property
η	0.0004103	Pa×s	367.90	Calculated Property

Property	Value	Unit	Temperature (K)	Source
ΔvapH	[46.77; 31.32]	kJ/mol	[231.55; 359.15]	ChemSep v8.3 pure component data
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			7.01000e+01
Coefficient B			6.87070e-01
Coefficient C			-1.99140e-03
Coefficient D			2.87920e-03
Coefficient E			-1.44030e-03
Critical temperature, Tc (K)			5.20000e+02
Comment			ChemSep eq 106, HeatOfVaporization
Temperature range, min.			231.55
Temperature range, max.			359.15
ΔvapH	46.77	kJ/mol	231.55	Calculated Property
ΔvapH	45.18	kJ/mol	245.73	Calculated Property
ΔvapH	43.56	kJ/mol	259.91	Calculated Property
ΔvapH	41.92	kJ/mol	274.08	Calculated Property
ΔvapH	40.25	kJ/mol	288.26	Calculated Property
ΔvapH	38.54	kJ/mol	302.44	Calculated Property
ΔvapH	36.80	kJ/mol	316.62	Calculated Property
ΔvapH	35.01	kJ/mol	330.79	Calculated Property
ΔvapH	33.19	kJ/mol	344.97	Calculated Property
ΔvapH	31.32	kJ/mol	359.15	Calculated Property

Property	Value	Unit	Temperature (K)	Source
Pvap	[0.06; 196.21]	kPa	[231.55; 376.10]	The Yaws Handbook of Vapor Pressure
Equation			ln(Y) = A + B/(T + C) Y is Pvap in kPa, T in K
Coefficient A			1.54030e+01
Coefficient B			-3.29672e+03
Coefficient C			-5.04600e+01
Temperature range, min.			231.55
Temperature range, max.			376.10
Pvap	0.06	kPa	231.55	Calculated Property
Pvap	0.27	kPa	247.61	Calculated Property
Pvap	0.94	kPa	263.67	Calculated Property
Pvap	2.78	kPa	279.73	Calculated Property
Pvap	7.14	kPa	295.79	Calculated Property
Pvap	16.30	kPa	311.86	Calculated Property
Pvap	33.82	kPa	327.92	Calculated Property
Pvap	64.80	kPa	343.98	Calculated Property
Pvap	116.04	kPa	360.04	Calculated Property
Pvap	196.21	kPa	376.10	Calculated Property
Pvap	[0.08; 194.93]	kPa	[231.55; 376.10]	ChemSep v8.3 pure component data
Equation			Y = exp(A + B/T + C·ln(T) + D·T^E) Y is Pvap in kPa, T in K
Coefficient A			1.97462e+01
Coefficient B			-5.01710e+03
Coefficient C			-3.66990e-02
Coefficient D			-6.47710e-06
Coefficient E			2.00000e+00
Comment			ChemSep eq 101, VaporPressure
Temperature range, min.			231.55
Temperature range, max.			376.10
Pvap	0.08	kPa	231.55	Calculated Property
Pvap	0.33	kPa	247.61	Calculated Property
Pvap	1.07	kPa	263.67	Calculated Property
Pvap	3.00	kPa	279.73	Calculated Property
Pvap	7.46	kPa	295.79	Calculated Property
Pvap	16.74	kPa	311.86	Calculated Property
Pvap	34.37	kPa	327.92	Calculated Property
Pvap	65.37	kPa	343.98	Calculated Property
Pvap	116.25	kPa	360.04	Calculated Property
Pvap	194.93	kPa	376.10	Calculated Property

Property	Value	Unit	Temperature (K)	Source
ρl	[1614.61; 1376.46]	kg/m3	[231.55; 373.15]	ChemSep v8.3 pure component data
Equation			Y = A / B^(1 + (1 − T/C)^D) Y is ρl in kg/m3, T in K
Coefficient A			4.36635e+02
Coefficient B			4.72740e-01
Coefficient C			5.20000e+02
Coefficient D			4.98370e-01
Comment			ChemSep eq 105, LiquidDensity
Temperature range, min.			231.55
Temperature range, max.			373.15
ρl	1614.61	kg/m3	231.55	Calculated Property
ρl	1589.94	kg/m3	247.28	Calculated Property
ρl	1564.94	kg/m3	263.02	Calculated Property
ρl	1539.57	kg/m3	278.75	Calculated Property
ρl	1513.79	kg/m3	294.48	Calculated Property
ρl	1487.54	kg/m3	310.22	Calculated Property
ρl	1460.77	kg/m3	325.95	Calculated Property
ρl	1433.40	kg/m3	341.68	Calculated Property
ρl	1405.33	kg/m3	357.42	Calculated Property
ρl	1376.46	kg/m3	373.15	Calculated Property

Property	Value	Unit	Temperature (K)	Source
γ	[0.04; 0.04]	N/m	[273.15; 313.15]	ChemSep v8.3 pure component data
Equation			Y = A + exp(B/T + C + D·T + E·T²) Y is γ in N/m, T in K
Coefficient A			2.40170e-03
Coefficient B			-3.60800e+02
Coefficient C			8.52850e-01
Coefficient D			-1.16560e-02
Coefficient E			6.22000e-06
Comment			ChemSep eq 16, SurfaceTension
Temperature range, min.			273.15
Temperature range, max.			313.15
γ	0.04	N/m	273.15	Calculated Property
γ	0.04	N/m	277.59	Calculated Property
γ	0.04	N/m	282.04	Calculated Property
γ	0.04	N/m	286.48	Calculated Property
γ	0.04	N/m	290.93	Calculated Property
γ	0.04	N/m	295.37	Calculated Property
γ	0.04	N/m	299.82	Calculated Property
γ	0.04	N/m	304.26	Calculated Property
γ	0.04	N/m	308.71	Calculated Property
γ	0.04	N/m	313.15	Calculated Property

Property	Value	Unit	Temperature (K)	Source
λ	[0.01; 0.06]	W/m×K	[231.55; 1000.00]	ChemSep v8.3 pure component data
Equation			Y = A·T^B / (1 + C/T + D/T²) Y is λ in W/m×K, T in K
Coefficient A			6.33650e-04
Coefficient B			7.20570e-01
Coefficient C			6.45240e+02
Coefficient D			5.30600e-03
Comment			ChemSep eq 102, VaporThermalConductivity
Temperature range, min.			231.55
Temperature range, max.			1000.00
λ	0.01	W/m×K	231.55	Calculated Property
λ	0.01	W/m×K	316.93	Calculated Property
λ	0.02	W/m×K	402.32	Calculated Property
λ	0.02	W/m×K	487.70	Calculated Property
λ	0.03	W/m×K	573.08	Calculated Property
λ	0.03	W/m×K	658.47	Calculated Property
λ	0.04	W/m×K	743.85	Calculated Property
λ	0.05	W/m×K	829.23	Calculated Property
λ	0.05	W/m×K	914.62	Calculated Property
λ	0.06	W/m×K	1000.00	Calculated Property

Property	Value	Unit	Temperature (K)	Source
λ	[0.25; 0.35]	W/m×K	[233.15; 433.15]	ChemSep v8.3 pure component data
Equation			Y = A + exp(B/T + C + D·T + E·T²) Y is λ in W/m×K, T in K
Coefficient A			1.55910e-01
Coefficient B			-1.86430e+02
Coefficient C			-2.27140e+00
Coefficient D			3.32140e-03
Coefficient E			-1.89320e-06
Comment			ChemSep eq 16, LiquidThermalConductivity
Temperature range, min.			233.15
Temperature range, max.			433.15
λ	0.25	W/m×K	233.15	Calculated Property
λ	0.26	W/m×K	255.37	Calculated Property
λ	0.27	W/m×K	277.59	Calculated Property
λ	0.28	W/m×K	299.82	Calculated Property
λ	0.29	W/m×K	322.04	Calculated Property
λ	0.31	W/m×K	344.26	Calculated Property
λ	0.32	W/m×K	366.48	Calculated Property
λ	0.33	W/m×K	388.71	Calculated Property
λ	0.34	W/m×K	410.93	Calculated Property
λ	0.35	W/m×K	433.15	Calculated Property

Similar Compounds

Find more compounds similar to nitric acid.

Mixtures

• nitric acid + Water
• nitric acid + Anisole + Water
• nitric acid + Benzene, 1-methoxy-4-methyl- + Water
• nitric acid + Water + Lead nitrate
• Potassium nitrate + nitric acid + Water
• dinitrogen tetraoxide + nitric acid + Water
• dinitrogen pentaoxide + dinitrogen tetraoxide + nitric acid
• Benzene, nitro- + nitric acid + Water

Sources

• Cheméo Relay (1.0)
• 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
• Crippen Method
• Distillation Separation of Hydrofluoric Acid and Nitric Acid From Acid Waste using the Salt Effect on Vapor-Liquid Equilibrium
• Ternary liquid-liquid equilibrium: Nitric acid - water - anisole/4-methyl anisole
• Apparent molar volumes and apparent molar heat capacities of aqueous lead nitrate at temperatures from 278.15 K to 393.15 K and at the pressure 0.35 MPa
• Apparent molar volumes and apparent molar heat capacities of Pr(NO3)3(aq), Gd(NO3)3(aq), Ho(NO3)3(aq), and Y(NO3)3(aq) at T = (288.15, 298.15, 313.15, and 328.15) K and p = 0.1 MPa
• Thermochemistry of 1,1,3,3-tetramethylguanidine and 1,1,3,3-tetramethylguanidinium nitrate
• Phase equilibria in the Mg(NO3)2 - Ln(NO3)3 (Ln = La, Ce, Pr) - HNO3 ( 21%) - H2O systems at 298.15 K and thermodynamic properties of 3Mg(NO3)2*2Ln(NO3)3*24H2O
• Effect of 1-ethyl-3-methylimidazolium tetrafluoroborate on the phase equilibria for systems containing 5-hydroxymethylfurfural, water, organic solvent in the absence and presence of sodium chloride
• Phase equilibria in Mg(NO3)2-Ln(NO3)3 (Ln = Nd, Sm, Eu, Tb)-HNO3 (~20%)-H2O systems at 298.15 K and thermodynamic properties of Mg3Ln2(NO3)12*24H2O (Ln = Nd, Sm)
• Thermochemical Analysis on Rare Earth Complex of Gadolinium with Salicylic acid and 8-hydroxyquinoline
• Thermodynamic Properties of Ternary Solutions in the Water Nitric Acid Rare Earth Nitrate (Pr, Nd, Sm) Systems at 298.15 K
• Densities and Excess Molar Volumes of the Ternary System N2O4 + H2O + HNO3 at 278.15 K, 283.15 K, 288.15 K, and 293.15 K
• Liquid-Liquid Equilibria of Nitrobenzene-Inorganic Acid Systems at 298.15 K
• Equilibrium Data for the N2O5 + HNO3+ N2O4 System at 258.2 K, 265.2 K, 273.2 K, and 281.2 K
• Joback Method
• KDB
• McGowan Method
• NIST Webbook
• The Yaws Handbook of Vapor Pressure

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