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

• PAff : Proton affinity (kJ/mol).
• BasG : Gas basicity (kJ/mol).
• C_p,gas : Ideal gas heat capacity (J/mol×K).
• 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_vap : Vapor pressure (kPa).
• T_boil : Normal Boiling Point Temperature (K).
• T_c : Critical Temperature (K).
• T_fus : Normal melting (fusion) point (K).
• V_c : Critical Volume (m³/kmol).
• ¹: Molecular weight from the IUPAC atomic weights tables.

Physical Properties

Property	Value	Unit	Source
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
EA	[0.56; 0.57]	eV
EA	0.57 ± 0.15	eV	NIST
EA	0.56 ± 0.17	eV	NIST
ΔfG°	-152.15	kJ/mol	Joback Calculated Property
ΔfH°gas	-206.32	kJ/mol	Joback Calculated Property
ΔfusH°	11.21	kJ/mol	Joback Calculated Property
ΔvapH°	48.86	kJ/mol	Joback 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	0.44		Crippen 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	8058.04	kPa	Joback Calculated Property
Tboil	443.42	K	Joback Calculated Property
Tc	648.46	K	Joback Calculated Property
Tfus	294.19	K	Joback Calculated Property
Vc	0.137	m3/kmol	Joback Calculated Property

Temperature Dependent Properties

Property	Value	Unit	Temperature (K)	Source
Cp,gas	[59.38; 71.89]	J/mol×K	[443.42; 648.46]
Cp,gas	59.38	J/mol×K	443.42	Joback Calculated Property
Cp,gas	61.79	J/mol×K	477.59	Joback Calculated Property
Cp,gas	64.07	J/mol×K	511.77	Joback Calculated Property
Cp,gas	66.21	J/mol×K	545.94	Joback Calculated Property
Cp,gas	68.23	J/mol×K	580.12	Joback Calculated Property
Cp,gas	70.12	J/mol×K	614.29	Joback Calculated Property
Cp,gas	71.89	J/mol×K	648.46	Joback Calculated Property
ΔvapH	38.60	kJ/mol	314.50	NIST

Correlations

Property	Value	Unit	Temperature (K)	Source
Pvap	[0.06; 196.21]	kPa	[231.55; 376.10]	The Yaw...
Equation			ln(Pvp) = A + B/(T + C)
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

Similar Compounds

Find more compounds similar to nitric acid.

Mixtures

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

Sources

• 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
• 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
• 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

Note: Cheméo is only indexing the data, follow the source links to retrieve the latest data. The source is also providing more information like the publication year, authors and more. Take the time to validate and double check the source of the data.