Chemical Properties of Phosphine (CAS 7803-51-2)

InChI

InChI=1S/H3P/h1H3

InChI Key

XYFCBTPGUUZFHI-UHFFFAOYSA-N

Formula

H3P

SMILES

P

Molecular Weight¹

34.00

CAS

7803-51-2

Other Names

• Fosforowodor
• Gas-ex-B
• HYDROGEN PHOSPHIDE
• PH3
• PHOSPHOROUS TRIHYDRIDE
• Phosphene
• Phosphorus hydride
• Phosphorus trihydride
• Phosphorwasserstoff
• Rcra waste number P096
• Trihydrogen phosphide
• UN 2199

• ω : Acentric Factor.
• PAff : Proton affinity (kJ/mol).
• BasG : Gas basicity (kJ/mol).
• μ : Dipole Moment (debye).
• Δ_fG° : Standard Gibbs free energy of formation (kJ/mol).
• 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 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).
• P_c : Critical Pressure (kPa).
• P_vap : Vapor pressure (kPa).
• ρ_l : Liquid Density (kg/m³).
• 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).
• ¹: Molecular weight from the IUPAC atomic weights tables.

Physical Properties

Property	Value	Unit	Source
ω	0.0380		KDB
PAff	785.00	kJ/mol	NIST
BasG	750.90	kJ/mol	NIST
μ	0.60	debye	KDB
ΔfG°	25.41	kJ/mol	KDB
ΔfH°gas	22.90	kJ/mol	KDB
IE	[9.87; 10.59]	eV
IE	9.87 ± 0.00	eV	NIST
IE	9.87 ± 0.01	eV	NIST
IE	9.87 ± 0.00	eV	NIST
IE	9.87 ± 0.01	eV	NIST
IE	9.96	eV	NIST
IE	10.00	eV	NIST
IE	9.96	eV	NIST
IE	9.96 ± 0.01	eV	NIST
IE	10.13 ± 0.02	eV	NIST
IE	9.97 ± 0.02	eV	NIST
IE	10.28	eV	NIST
IE	10.05 ± 0.05	eV	NIST
IE	10.10	eV	NIST
IE	10.30 ± 0.10	eV	NIST
IE	9.98	eV	NIST
IE	Outlier 10.59	eV	NIST
IE	Outlier 10.59 ± 0.05	eV	NIST
log10WS	3.76		Crippen Calculated Property
logPoct/wat	0.058		Crippen Calculated Property
McVol	31.320	ml/mol	McGowan Calculated Property
Pc	6540.00	kPa	KDB
Tboil	185.40	K	KDB
Tc	324.50	K	KDB
Tfus	140.00	K	KDB
Ttriple	139.41 ± 0.20	K	NIST

Temperature Dependent Properties

Property	Value	Unit	Temperature (K)	Source
ΔsubH	17.20	kJ/mol	134.50	NIST
ΔvapH	[14.60; 14.60]	kJ/mol	[185.00; 186.00]
ΔvapH	14.60	kJ/mol	185.00	NIST
ΔvapH	14.60 ± 0.10	kJ/mol	186.00	NIST
ρl	1529.00	kg/m3	298.00	KDB

Correlations

Property	Value	Unit	Temperature (K)	Source
Pvap	[3.62; 6536.88]	kPa	[139.37; 324.75]	The Yaw...
Equation			ln(Pvp) = A + B/(T + C)
Coefficient A			1.40657e+01
Coefficient B			-1.66816e+03
Coefficient C			-8.84000e+00
Temperature range, min.			139.37
Temperature range, max.			324.75
Pvap	3.62	kPa	139.37	Calculated Property
Pvap	20.65	kPa	159.97	Calculated Property
Pvap	77.60	kPa	180.57	Calculated Property
Pvap	219.64	kPa	201.16	Calculated Property
Pvap	508.30	kPa	221.76	Calculated Property
Pvap	1014.48	kPa	242.36	Calculated Property
Pvap	1810.15	kPa	262.96	Calculated Property
Pvap	2961.25	kPa	283.55	Calculated Property
Pvap	4522.89	kPa	304.15	Calculated Property
Pvap	6536.88	kPa	324.75	Calculated Property

Similar Compounds

Find more compounds similar to Phosphine.

Sources

• Crippen Method
• Crippen Method
• 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.