Chemical Properties of Ammonia (CAS 7664-41-7)

InChI

InChI=1S/H3N/h1H3

InChI Key

QGZKDVFQNNGYKY-UHFFFAOYSA-N

Formula

H3N

SMILES

N

Molecular Weight¹

17.03

CAS

7664-41-7

Other Names

• AMMONIA GAS
• Ammonia, anhydrous
• Anhydrous ammonia
• Aromatic Ammonia, Vaporole
• NH3
• NITRO-SIL
• Spirit of Hartshorn

• ω : Acentric Factor.
• PAff : Proton affinity (kJ/mol).
• T_ig : Autoignition Temperature (K).
• BasG : Gas basicity (kJ/mol).
• C_p,liquid : Liquid phase heat capacity (J/mol×K).
• μ : Dipole Moment (debye).
• LFL : Lower Flammability Limit (% in Air).
• UFL : Upper Flammability Limit (% in Air).
• 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_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).
• ν : Kinematic viscosity (m²/s).
• log₁₀WS : Log10 of Water solubility in mol/l.
• logP_oct/wat : Octanol/Water partition coefficient.
• McVol : McGowan's characteristic volume (ml/mol).
• NFPA Fire : NFPA Fire Rating.
• NFPA Health : NFPA Health Rating.
• P_c : Critical Pressure (kPa).
• P_triple : Triple Point Pressure (kPa).
• P_vap : Vapor pressure (kPa).
• ρ_l : Liquid Density (kg/m³).
• I_np : Non-polar retention indices.
• S°_{gas,1 bar} : Molar entropy at standard conditions (1 bar) (J/mol×K).
• c_sound,fluid : Speed of sound in fluid (m/s).
• T_boil : Normal Boiling Point Temperature (K).
• T_c : Critical Temperature (K).
• T_fus : Normal melting (fusion) point (K).
• T_triple : Triple Point Temperature (K).
• V_c : Critical Volume (m³/kmol).
• Z_c : Critical Compressibility.
• Z_ra : Rackett Parameter.
• ¹: Molecular weight from the IUPAC atomic weights tables.

Contents

1. Physical Properties
2. Temperature Dependent Properties
3. Datasets
4. Correlations
5. Similar Compounds
6. Mixtures
7. Sources

Physical Properties

Property	Value	Unit	Source
ω	0.2500		KDB
PAff	853.60	kJ/mol	NIST
Tig	924.26	K	KDB
BasG	819.00	kJ/mol	NIST
μ	1.50	debye	KDB
LFL	15.50	% in Air	KDB
UFL	27.00	% in Air	KDB
ΔfG°	-16.16	kJ/mol	KDB
Rg	0.8530		KDB
ΔfH°gas	[-45.94; -45.72]	kJ/mol
ΔfH°gas	-45.72	kJ/mol	KDB
ΔfH°gas	-45.94 ± 0.35	kJ/mol	NIST
ΔvapH°	20.31	kJ/mol	Relay (1.0) Calculated Property
IE	[10.02; 15.02]	eV
IE	10.07 ± 0.02	eV	NIST
IE	10.02	eV	NIST
IE	10.07 ± 0.01	eV	NIST
IE	10.19	eV	NIST
IE	10.07 ± 0.00	eV	NIST
IE	10.07 ± 0.01	eV	NIST
IE	10.30 ± 0.00	eV	NIST
IE	10.45	eV	NIST
IE	10.20	eV	NIST
IE	10.18 ± 0.09	eV	NIST
IE	10.20	eV	NIST
IE	10.15	eV	NIST
IE	10.18 ± 0.01	eV	NIST
IE	Outlier 14.94 ± 0.03	eV	NIST
IE	10.14	eV	NIST
IE	Outlier 14.92	eV	NIST
IE	10.16 ± 0.02	eV	NIST
IE	10.17	eV	NIST
IE	10.16 ± 0.01	eV	NIST
IE	10.17	eV	NIST
IE	10.16	eV	NIST
IE	Outlier 15.02	eV	NIST
IE	10.15 ± 0.01	eV	NIST
IE	10.82	eV	NIST
IE	10.80	eV	NIST
IE	10.85	eV	NIST
IE	11.30	eV	NIST
IE	10.85	eV	NIST
log10WS	0.14		Relay (1.0) Calculated Property
logPoct/wat	0.162		Crippen Calculated Property
McVol	20.840	ml/mol	McGowan Calculated Property
NFPA Fire	1		KDB
NFPA Health	3		KDB
Pc	[11300.00; 11350.00]	kPa
Pc	11350.00	kPa	KDB
Pc	11300.00 ± 5.00	kPa	NIST
Ptriple	[6.06; 6.08]	kPa
Ptriple	6.08	kPa	KDB
Ptriple	6.06 ± 0.01	kPa	NIST
Inp	[118.00; 131.00]
Inp	118.00		NIST
Inp	131.00		NIST
S°gas,1 bar	192.77 ± 0.05	J/mol×K	NIST
Tboil	239.82	K	KDB
Tc	[405.40; 405.60]	K
Tc	405.50	K	KDB
Tc	405.56	K	Critical parameters for ammonia
Tc	405.40 ± 0.10	K	NIST
Tc	405.60 ± 5.00	K	NIST
Tfus	[194.95; 195.41]	K
Tfus	195.41	K	KDB
Tfus	194.95 ± 0.30	K	NIST
Ttriple	195.41	K	KDB
Vc	0.072	m3/kmol	KDB
Zc	0.2423820		KDB
Zra	0.25		KDB

Temperature Dependent Properties

Property	Value	Unit	Temperature (K)	Source
Cp,liquid	[82.46; 89.36]	J/mol×K	[304.17; 334.09]
Cp,liquid	82.46	J/mol×K	304.17	Densities, Viscosities, Heat Capacities, and Vapor Liquid Equilibria of Ammonia + Sodium Thiocyanate Solutions at Several Temperatures
Cp,liquid	83.45	J/mol×K	314.14	Densities, Viscosities, Heat Capacities, and Vapor Liquid Equilibria of Ammonia + Sodium Thiocyanate Solutions at Several Temperatures
Cp,liquid	85.83	J/mol×K	324.11	Densities, Viscosities, Heat Capacities, and Vapor Liquid Equilibria of Ammonia + Sodium Thiocyanate Solutions at Several Temperatures
Cp,liquid	89.36	J/mol×K	334.09	Densities, Viscosities, Heat Capacities, and Vapor Liquid Equilibria of Ammonia + Sodium Thiocyanate Solutions at Several Temperatures
ΔsubH	31.20	kJ/mol	186.00	NIST
ΔvapH	[22.70; 23.50]	kJ/mol	[220.00; 342.50]
ΔvapH	23.50	kJ/mol	220.00	NIST
ΔvapH	23.40	kJ/mol	239.00	NIST
ΔvapH	22.70	kJ/mol	342.50	NIST
Pvap	[119.70; 6243.00]	kPa	[243.15; 373.16]
Pvap	119.70	kPa	243.15	The investigation on the vapour liquid phase equilibrium of (ammonia + 1,1,1,2-tetrafluoroethane) system over the temperatures ranging from (243.150 to 283.150) K
Pvap	151.70	kPa	248.15	The investigation on the vapour liquid phase equilibrium of (ammonia + 1,1,1,2-tetrafluoroethane) system over the temperatures ranging from (243.150 to 283.150) K
Pvap	190.20	kPa	253.15	The investigation on the vapour liquid phase equilibrium of (ammonia + 1,1,1,2-tetrafluoroethane) system over the temperatures ranging from (243.150 to 283.150) K
Pvap	236.40	kPa	258.15	The investigation on the vapour liquid phase equilibrium of (ammonia + 1,1,1,2-tetrafluoroethane) system over the temperatures ranging from (243.150 to 283.150) K
Pvap	290.70	kPa	263.15	The investigation on the vapour liquid phase equilibrium of (ammonia + 1,1,1,2-tetrafluoroethane) system over the temperatures ranging from (243.150 to 283.150) K
Pvap	354.80	kPa	268.15	The investigation on the vapour liquid phase equilibrium of (ammonia + 1,1,1,2-tetrafluoroethane) system over the temperatures ranging from (243.150 to 283.150) K
Pvap	429.30	kPa	273.15	The investigation on the vapour liquid phase equilibrium of (ammonia + 1,1,1,2-tetrafluoroethane) system over the temperatures ranging from (243.150 to 283.150) K
Pvap	515.50	kPa	278.15	The investigation on the vapour liquid phase equilibrium of (ammonia + 1,1,1,2-tetrafluoroethane) system over the temperatures ranging from (243.150 to 283.150) K
Pvap	615.10	kPa	283.15	The investigation on the vapour liquid phase equilibrium of (ammonia + 1,1,1,2-tetrafluoroethane) system over the temperatures ranging from (243.150 to 283.150) K
Pvap	728.50	kPa	288.15	The investigation on the vapour liquid phase equilibrium of (ammonia + 1,1,1,2-tetrafluoroethane) system over the temperatures ranging from (243.150 to 283.150) K
Pvap	857.10	kPa	293.15	The investigation on the vapour liquid phase equilibrium of (ammonia + 1,1,1,2-tetrafluoroethane) system over the temperatures ranging from (243.150 to 283.150) K
Pvap	1166.00	kPa	303.12	Vapor Pressures and Liquid Densities of Ammonium Chloride + Ammonia Mixtures
Pvap	1553.00	kPa	313.14	Vapor Pressures and Liquid Densities of Ammonium Chloride + Ammonia Mixtures
Pvap	2030.00	kPa	323.16	Vapor Pressures and Liquid Densities of Ammonium Chloride + Ammonia Mixtures
Pvap	2609.00	kPa	333.13	Vapor Pressures and Liquid Densities of Ammonium Chloride + Ammonia Mixtures
Pvap	3305.00	kPa	343.13	Vapor Pressures and Liquid Densities of Ammonium Chloride + Ammonia Mixtures
Pvap	4132.00	kPa	353.13	Vapor Pressures and Liquid Densities of Ammonium Chloride + Ammonia Mixtures
Pvap	5105.00	kPa	363.12	Vapor Pressures and Liquid Densities of Ammonium Chloride + Ammonia Mixtures
Pvap	6243.00	kPa	373.16	Vapor Pressures and Liquid Densities of Ammonium Chloride + Ammonia Mixtures
ρl	639.00	kg/m3	273.00	KDB

Datasets

1. Molar heat capacity at constant pressure, J/K/mol (1)
2. Kinematic viscosity, m2/s (1)
3. Mass density, kg/m3 (1)
4. Speed of sound, m/s (1)

Molar heat capacity at constant pressure, J/K/mol

Fixed		Measured
Pressure, kPa - Liquid	Temperature, K - Liquid	Molar heat capacity at constant pressure, J/K/mol - Liquid
1000.00	280.00	76.81
5000.00	280.00	75.62
5000.00	300.00	76.81
5000.00	320.00	77.83
5000.00	360.00	95.20
10000.00	360.00	92.82
15000.00	360.00	90.26
Reference

Kinematic viscosity, m2/s

Fixed		Measured
Temperature, K - Gas	Pressure, kPa - Gas	Kinematic viscosity, m2/s - Gas
300.00	223.53	6.4750e-06
300.00	259.87	5.4700e-06
300.00	329.51	4.3200e-06
300.00	361.99	3.9500e-06
300.00	447.86	3.1370e-06
300.00	465.77	3.0190e-06
300.00	568.68	2.4461e-06
300.00	569.79	2.4530e-06
300.00	676.75	2.0302e-06
300.00	692.80	1.9770e-06
300.00	802.37	1.7130e-06
300.00	802.82	1.6954e-06
315.00	250.83	6.4090e-06
315.00	378.83	4.1930e-06
315.00	506.43	3.0826e-06
315.00	661.04	2.3351e-06
315.00	791.02	1.9168e-06
315.00	938.74	1.5933e-06
315.00	1080.91	1.3636e-06
315.00	1284.99	1.1321e-06
330.00	308.27	5.7660e-06
330.00	473.84	3.6850e-06
330.00	664.29	2.5831e-06
330.00	822.59	2.0604e-06
330.00	977.41	1.7093e-06
330.00	1142.12	1.4396e-06
330.00	1294.82	1.2526e-06
330.00	1480.49	1.0768e-06
330.00	1640.80	9.5720e-07
330.00	1792.05	8.6590e-07
330.00	1945.84	7.9070e-07
345.00	297.74	6.4990e-06
345.00	504.54	3.7840e-06
345.00	708.88	2.6651e-06
345.00	914.14	2.0446e-06
345.00	1123.20	1.6371e-06
345.00	1332.13	1.3587e-06
345.00	1537.04	1.1587e-06
345.00	1744.59	1.0035e-06
345.00	1955.14	8.7950e-07
345.00	2315.57	7.2120e-07
345.00	2530.02	6.4960e-07
345.00	2769.00	5.8360e-07
360.00	242.70	8.7370e-06
360.00	453.28	4.6810e-06
360.00	661.35	3.1640e-06
360.00	865.15	2.3862e-06
360.00	1069.66	1.9034e-06
360.00	1277.79	1.5735e-06
360.00	1481.15	1.3395e-06
360.00	1690.65	1.1597e-06
360.00	1894.78	1.0216e-06
360.00	2277.38	8.2770e-07
360.00	2480.70	7.4880e-07
360.00	2738.78	6.6620e-07
360.00	3050.47	5.8500e-07
360.00	3365.40	5.1890e-07
375.00	260.57	0.0000
375.00	483.31	4.9000e-06
375.00	684.74	3.4200e-06
375.00	897.66	2.5680e-06
375.00	1130.68	1.9560e-06
375.00	1341.71	1.6340e-06
375.00	1583.75	1.3698e-06
375.00	1793.43	1.2003e-06
375.00	2026.26	1.0365e-06
375.00	2290.42	9.1170e-07
375.00	2599.92	7.9380e-07
375.00	2933.13	6.8980e-07
375.00	3140.48	6.3810e-07
375.00	3379.20	5.8760e-07
Reference

Mass density, kg/m3

Fixed		Measured
Temperature, K - Liquid	Pressure, kPa - Liquid	Mass density, kg/m3 - Liquid
450.00	30000.00	355.3
450.00	40000.00	403.7
450.00	50000.00	433.4
450.00	60000.00	455.2
450.00	70000.00	472.6
450.00	80000.00	487.4
450.00	90000.00	500.2
450.00	100000.00	511.7
450.00	120000.00	531.4
450.00	140000.00	548.2
450.00	160000.00	563.1
450.00	180000.00	576.3
450.00	200000.00	588.2
500.00	50000.00	350.9
500.00	60000.00	384.9
500.00	70000.00	410.1
500.00	80000.00	430.2
500.00	90000.00	446.9
500.00	100000.00	461.5
500.00	120000.00	485.8
500.00	140000.00	505.9
500.00	160000.00	523.1
500.00	180000.00	538.3
500.00	200000.00	551.9
Reference

Speed of sound, m/s

Fixed		Measured
Temperature, K - Fluid (supercritical or subcritical phases)	Pressure, kPa - Fluid (supercritical or subcritical phases)	Speed of sound, m/s - Fluid (supercritical or subcritical phases)
297.00	620000.00	2741.0
297.00	700000.00	2836.0
297.00	780000.00	2942.0
297.00	880000.00	3023.0
297.00	970000.00	3113.0
297.00	780000.00	2932.0
298.00	370000.00	2376.0
298.00	740000.00	2903.0
474.00	1430000.00	3280.0
476.00	1550000.00	3375.0
476.00	2200000.00	3788.0
477.00	1090000.00	2954.0
479.00	2220000.00	3797.0
678.00	2920000.00	4000.0
678.00	3080000.00	4072.0
678.00	3140000.00	4103.0
679.00	1480000.00	3084.0
679.00	2440000.00	3740.0
679.00	3750000.00	4342.0
680.00	1350000.00	2982.0
680.00	1350000.00	2970.0
Reference

Correlations

Property	Value	Unit	Temperature (K)	Source
Pvap	[6.12; 11318.57]	kPa	[195.41; 405.65]	The Yaws Handbook of Vapor Pressure
Equation			ln(Pvp) = A + B/(T + C)
Coefficient A			1.54557e+01
Coefficient B			-2.33432e+03
Coefficient C			-2.43200e+01
Temperature range, min.			195.41
Temperature range, max.			405.65
Pvap	6.12	kPa	195.41	Calculated Property
Pvap	31.53	kPa	218.77	Calculated Property
Pvap	114.26	kPa	242.13	Calculated Property
Pvap	322.65	kPa	265.49	Calculated Property
Pvap	758.48	kPa	288.85	Calculated Property
Pvap	1552.08	kPa	312.21	Calculated Property
Pvap	2852.35	kPa	335.57	Calculated Property
Pvap	4814.96	kPa	358.93	Calculated Property
Pvap	7591.08	kPa	382.29	Calculated Property
Pvap	11318.57	kPa	405.65	Calculated Property

Similar Compounds

Find more compounds similar to Ammonia.

Mixtures

• Ammonia + Water
• Ammonia + Norflurane
• Ammonia + Glycerin
• Ammonia + 1,3-Dioxolane-4-methanol, 2,2-dimethyl-
• Ammonia + 1,2-Propanediol, 3-methoxy-
• Ammonia + Choline chloride + Urea
• Ammonia + Sodium thiocyanate
• Ammonia + Methyl Alcohol
• helium + Ammonia
• Ammonia + Methyl Alcohol + Water
• Ammonia + Ethanol
• Piperazine + Ammonia + Water
• Ammonia + Carbon dioxide + Water
• Nitrogen + Ammonia
• Ammonia + Oxygen
• Ammonia + Methane
• Ammonia + Ethane
• Propane + Ammonia
• Ammonia + Butane
• Ammonia + Isobutane

Find more mixtures with Ammonia.

Sources

• Cheméo Relay (1.0)
• Crippen Method
• Crippen Method
• An Experimental Study of the pVTx Properties for Aqueous Solutions of Ammonia Focusing on the Maximum Density Region1
• Experimental Study of the Critical Behavior of the Isochoric Heat Capacity of Aqueous Ammonia Mixture
• Binary Diffusion Coefficient Data of Various Gas Systems Determined Using a Loschmidt Cell and Holographic Interferometry
• Solubility of ammonia in liquid mixtures of (water + methanol)
• Solubilities of ammonia in basic imidazolium ionic liquids
• The Solubility of ammonia in ethanol between 277.35 K and 328.15 K
• Vapor-liquid equilibria of NH3 in (NH3 + H2O) and (NH3 + PZ + H2O) system
• New device for measuring the solubility of inorganic salts in liquid ammonia
• Investigation on vapor liquid equilibria for binary systems of metal ion-containing ionic liquid [bmim]Zn2Cl5/NH3 by experiment and modified UNIFAC model
• Solubility of ammonium chloride in a MgCl2-NH4Cl-NH3-H2O system at 298 K: Experiments, modeling and prediction
• Vapor liquid equilibrium of CO2 in NH3 CO2 SO2 H2O system
• Effects of association with impurities in ammonia purification
• Vapour pressure measurements of ammonia/ionic liquids mixtures as suitable alternative working fluids for absorption refrigeration technology
• Critical parameters for ammonia
• Isobaric specific heat capacity of {xH2O + (1 x)NH3} with x = (0.0000, 0.1566, 0.1597, 0.3030, 0.3048, 0.4956, 0.7061, and 0.8489) at T = (280, 300, 320, and 360) K over the pressure range from (0.1 to 15) MPa
• Kinematic viscosity and speed of sound in gaseous CO, CO2, SiF4, SF6, C4F8, and NH3 from 220 K to 375 K and pressures up to 3.4 MPa
• Measurements of the critical parameters for {xNH3 + (1 x)H2O} with x = (0.9098, 0.7757,0.6808)
• The (p,q,T,x) properties for {xNH3 + (1 x)H2O} at T = (450 and 500) K over the pressure range from (10 to 200) MPa
• The investigation on the vapour liquid phase equilibrium of (ammonia + 1,1,1,2-tetrafluoroethane) system over the temperatures ranging from (243.150 to 283.150) K
• The experimental investigation of the vapour liquid phase equilibrium for (ammonia + 2,3,3,3-tetrafluoroprop-1-ene) system
• Solubilities of ammonia in choline chloride plus urea at (298.2-353.2) K and (0-300) kPa
• Solubility and thermodynamic properties of NH3 in choline chloride-based deep eutectic solvents
• Densities and viscosities of, and NH3 solubilities in deep eutectic solvents composed of ethylamine hydrochloride and acetamide
• Evaluation of Methanesulfonate-Based Deep Eutectic Solvent for Ammonia Sorption
• Investigation of Thermodynamic Properties on CO2 Absorbents Blended with Ammonia, Amino Acids, and Corrosion Inhibitors at 313.15, 333.15, and 353.15 K
• Solubilities and Thermodynamic Properties of NH3 in Glycerin and its Derivatives
• NH3 Solubilities and Physical Properties of Ethylamine Hydrochloride Plus Urea Deep Eutectic Solvents
• Vapor-Liquid Equilibria of Ammonia + Water + Potassium Hydroxide and Ammonia + Water + Sodium Hydroxide Solutions at Temperatures from (293.15 to 353.15) K
• Densities and Heat Capacities of the Ammonia + Water + NaOH and Ammonia + Water + KOH Solutions
• Densities, Viscosities, Heat Capacities, and Vapor Liquid Equilibria of Ammonia + Sodium Thiocyanate Solutions at Several Temperatures
• Solubility of N2O in and Density and Viscosity of Aqueous Solutions of Piperazine, Ammonia, and Their Mixtures from (283.15 to 323.15) K
• Vapor Liquid Equilibrium Measurements of NH3 + H2O + Ionic Liquid ([Dmim]Cl, [Dmim]BF4, and [Dmim]DMP) Systems
• Vapor-Liquid Equilibrium of Ammonia + Lithium Nitrate + Water and Ammonia + Lithium Nitrate Solutions from (293.15 to 353.15) K
• Experimental Investigation of the Solubility of Ammonia in Methanol
• Vapor Pressures and Liquid Densities of Ammonium Chloride + Ammonia Mixtures
• Densities, Viscosities, and Heat Capacities of Ammonia + Lithium Nitrate and Ammonia + Lithium Nitrate + Water Solutions between (293.15 and 353.15) K
• Speeds of Sound in Fluid Ammonia to 3.8 GPa and 680 K
• Vapor Pressures and Liquid Densities of Ammonium Bromide + Ammonia Mixtures
• Vapor Pressures and Liquid Densities of Ammonium Iodide + Ammonia Mixtures
• Solid-Liquid Phase Diagram for the System MgCl2-NH3-CH3OH at 298 K
• KDB
• McGowan Method
• NIST Webbook
• The Yaws Handbook of Vapor Pressure

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Outlier This icon means that the value is more than 2 standard deviations away from the property mean.