Chemical Properties of Trisilane (CAS 7783-26-8)

InChI

InChI=1S/H8Si3/c1-3-2/h3H2,1-2H3

InChI Key

VEDJZFSRVVQBIL-UHFFFAOYSA-N

Formula

H8Si3

SMILES

[SiH3][SiH2][SiH3]

Molecular Weight¹

92.32

CAS

7783-26-8

Other Names

• Si3H8
• Silicopropane
• Trisilan
• Trisilicane
• Trisilicon octahydride
• Trisilicopropane

• ω : Acentric Factor.
• Δ_fG° : Standard Gibbs free energy of formation (kJ/mol).
• Δ_fH°_gas : Enthalpy of formation at standard conditions (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.
• 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
ω	0.2474		Relay (1.0) Calculated Property
ΔfG°	-17.54	kJ/mol	Relay (1.0-beta) Calculated Property
ΔfH°gas	-321.71	kJ/mol	Relay (1.0) Calculated Property
ΔvapH°	22.20	kJ/mol	Relay (1.0) Calculated Property
IE	[9.20; 9.87]	eV
IE	9.20	eV	NIST
IE	9.87	eV	NIST
log10WS	-0.33		Relay (1.0) Calculated Property
logPoct/wat	-3.284		Crippen Calculated Property
Pc	3437.21	kPa	Relay (1.0-beta) Calculated Property
Tboil	262.96	K	Relay (1.0) Calculated Property
Tc	427.72	K	Relay (1.0) Calculated Property
Tfus	119.31	K	Relay (1.0) Calculated Property
Vc	0.247	m3/kmol	Relay (1.0) Calculated Property

Correlations

Property	Value	Unit	Temperature (K)	Source
Pvap	[0.14; 101.31]	kPa	[204.25; 326.05]	The Yaws Handbook of Vapor Pressure
Equation			ln(Pvp) = A + B/(T + C)
Coefficient A			1.46185e+01
Coefficient B			-3.06052e+03
Coefficient C			-2.00100e+01
Temperature range, min.			204.25
Temperature range, max.			326.05
Pvap	0.14	kPa	204.25	Calculated Property
Pvap	0.42	kPa	217.78	Calculated Property
Pvap	1.14	kPa	231.32	Calculated Property
Pvap	2.74	kPa	244.85	Calculated Property
Pvap	5.93	kPa	258.38	Calculated Property
Pvap	11.81	kPa	271.92	Calculated Property
Pvap	21.95	kPa	285.45	Calculated Property
Pvap	38.39	kPa	298.98	Calculated Property
Pvap	63.78	kPa	312.52	Calculated Property
Pvap	101.31	kPa	326.05	Calculated Property

Similar Compounds

Find more compounds similar to Trisilane.

Sources

• Cheméo Relay (1.0)
• Cheméo Relay (1.0, beta) Beta: served but experimental, data-limited and below our cross-validation release bar; the Joback value is recommended where available.
• Crippen Method
• Crippen Method
• NIST Webbook
• The Yaws Handbook of Vapor Pressure

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