Chemical Properties of Disilane, hexamethyl-

InChI

InChI=1S/C6H18Si2/c1-7(2,3)8(4,5)6/h1-6H3

InChI Key

NEXSMEBSBIABKL-UHFFFAOYSA-N

Formula

C6H18Si2

SMILES

C[Si](C)(C)[Si](C)(C)C

Molecular Weight¹

146.38

Other Names

• Hexamethyldisilane
• (CH3)6Si2
• Permethyldisilane
• CH7280

• C_p,liquid : Liquid phase heat capacity (J/mol×K).
• Δ_fusH : Enthalpy of fusion 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).
• logP_oct/wat : Octanol/Water partition coefficient.
• P_c : Critical Pressure (kPa).
• I_np : Non-polar retention indices.
• Δ_fusS : Entropy of fusion at a given temperature (J/mol×K).
• 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
ΔvapH°	38.91	kJ/mol	Relay (1.0) Calculated Property
IE	[8.00; 8.79]	eV
IE	8.27 ± 0.05	eV	NIST
IE	8.27 ± 0.05	eV	NIST
IE	8.27 ± 0.05	eV	NIST
IE	8.40	eV	NIST
IE	8.00	eV	NIST
IE	8.35 ± 0.12	eV	NIST
IE	8.46 ± 0.15	eV	NIST
IE	8.00 ± 0.01	eV	NIST
IE	8.35 ± 0.12	eV	NIST
IE	8.79 ± 0.08	eV	NIST
IE	8.68	eV	NIST
IE	8.70 ± 0.05	eV	NIST
IE	8.69	eV	NIST
IE	8.69	eV	NIST
logPoct/wat	2.741		Crippen Calculated Property
Pc	2500.46	kPa	Relay (1.0-beta) Calculated Property
Inp	[685.90; 699.00]
Inp	698.00		NIST
Inp	686.10		NIST
Inp	685.90		NIST
Inp	698.00		NIST
Inp	699.00		NIST
Inp	686.10		NIST
Tboil	[386.00; 386.00]	K
Tboil	386.00	K	NIST
Tboil	386.00	K	NIST
Tc	575.60	K	Relay (1.0) Calculated Property
Tfus	[287.10; 287.70]	K
Tfus	287.10 ± 0.10	K	NIST
Tfus	287.22 ± 0.05	K	NIST
Tfus	287.70 ± 0.20	K	NIST
Tfus	287.70 ± 0.20	K	NIST
Vc	0.540	m3/kmol	Relay (1.0) Calculated Property

Cheméo can also estimate Enthalpy of formation at standard conditions, Standard Gibbs free energy of formation, Acentric Factor, Log10 of Water solubility in mol/l for this compound, but they fall outside the models' validated range, so they are not shown here. Open the prediction tool to compute them on demand.

Temperature Dependent Properties

Property	Value	Unit	Temperature (K)	Source
Cp,liquid	255.89	J/mol×K	295.67	NIST
ΔfusH	[3.02; 9.75]	kJ/mol	[221.80; 287.70]
ΔfusH	9.75	kJ/mol	221.80	NIST
ΔfusH	3.02	kJ/mol	287.70	NIST
ΔfusH	3.02	kJ/mol	287.70	NIST
ΔvapH	[36.30; 37.20]	kJ/mol	[299.00; 346.00]
ΔvapH	37.20	kJ/mol	299.00	NIST
ΔvapH	37.20	kJ/mol	299.00	NIST
ΔvapH	36.80	kJ/mol	314.00	NIST
ΔvapH	36.30	kJ/mol	346.00	NIST
ΔfusS	[10.49; 43.95]	J/mol×K	[221.80; 287.70]
ΔfusS	43.95	J/mol×K	221.80	NIST
ΔfusS	10.49	J/mol×K	287.70	NIST

Similar Compounds

Find more compounds similar to Disilane, hexamethyl-.

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

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.
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