Chemical Properties of Hydroxylamine (CAS 7803-49-8)

InChI

InChI=1S/H3NO/c1-2/h2H,1H2

InChI Key

AVXURJPOCDRRFD-UHFFFAOYSA-N

Formula

H3NO

SMILES

NO

Molecular Weight¹

33.03

CAS

7803-49-8

Other Names

• NH2OH
• Oxammonium
• Oxyammonia

• C_p,gas : Ideal gas heat capacity (J/mol×K).
• 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_subH : Enthalpy of sublimation at a given temperature (kJ/mol).
• Δ_vapH° : Enthalpy of vaporization at standard conditions (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).
• 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
ΔfG°	-121.25	kJ/mol	Joback Calculated Property
ΔfH°gas	-161.77	kJ/mol	Joback Calculated Property
ΔfusH°	5.04	kJ/mol	Joback Calculated Property
ΔvapH°	42.91	kJ/mol	Joback Calculated Property
IE	[9.60; 10.64]	eV
IE	10.00	eV	NIST
IE	9.60	eV	NIST
IE	10.64	eV	NIST
IE	10.59	eV	NIST
log10WS	1.09		Crippen Calculated Property
logPoct/wat	-0.666		Crippen Calculated Property
McVol	26.710	ml/mol	McGowan Calculated Property
Pc	8750.74	kPa	Joback Calculated Property
Tboil	364.11	K	Joback Calculated Property
Tc	544.04	K	Joback Calculated Property
Tfus	233.84	K	Joback Calculated Property
Vc	0.084	m3/kmol	Joback Calculated Property

Temperature Dependent Properties

Property	Value	Unit	Temperature (K)	Source
Cp,gas	[44.81; 55.66]	J/mol×K	[364.11; 544.04]
Cp,gas	44.81	J/mol×K	364.11	Joback Calculated Property
Cp,gas	46.78	J/mol×K	394.10	Joback Calculated Property
Cp,gas	48.69	J/mol×K	424.09	Joback Calculated Property
Cp,gas	50.53	J/mol×K	454.07	Joback Calculated Property
Cp,gas	52.30	J/mol×K	484.06	Joback Calculated Property
Cp,gas	54.01	J/mol×K	514.05	Joback Calculated Property
Cp,gas	55.66	J/mol×K	544.04	Joback Calculated Property
ΔsubH	64.20	kJ/mol	270.50	NIST

Correlations

Property	Value	Unit	Temperature (K)	Source
Pvap	[0.39; 101.34]	kPa	[306.25; 383.00]	The Yaw...
Equation			ln(Pvp) = A + B/(T + C)
Coefficient A			2.49567e+01
Coefficient B			-7.26624e+03
Coefficient C			-2.57300e+01
Temperature range, min.			306.25
Temperature range, max.			383.00
Pvap	0.39	kPa	306.25	Calculated Property
Pvap	0.83	kPa	314.78	Calculated Property
Pvap	1.71	kPa	323.31	Calculated Property
Pvap	3.38	kPa	331.83	Calculated Property
Pvap	6.44	kPa	340.36	Calculated Property
Pvap	11.84	kPa	348.89	Calculated Property
Pvap	21.11	kPa	357.42	Calculated Property
Pvap	36.56	kPa	365.94	Calculated Property
Pvap	61.63	kPa	374.47	Calculated Property
Pvap	101.34	kPa	383.00	Calculated Property

Similar Compounds

Find more compounds similar to Hydroxylamine.

Sources

• Crippen Method
• Crippen Method
• Joback Method
• McGowan Method
• NIST Webbook
• The Yaws Handbook of Vapor Pressure

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