Chemical Properties of Cycloheptasiloxane, tetradecamethyl- (CAS 107-50-6)

InChI

InChI=1S/C14H42O7Si7/c1-22(2)15-23(3,4)17-25(7,8)19-27(11,12)21-28(13,14)20-26(9,10)18-24(5,6)16-22/h1-14H3

InChI Key

GSANOGQCVHBHIF-UHFFFAOYSA-N

Formula

C14H42O7Si7

SMILES

C[Si]1(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O1

Molecular Weight¹

519.08

CAS

107-50-6

Other Names

• Tetradecamethylcycloheptasiloxane

• 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_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).
• 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).
• I_np : Non-polar retention indices.
• 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	0.5985		Relay (1.0) Calculated Property
ΔfG°	-535.88	kJ/mol	Relay (1.0-beta) Calculated Property
ΔfH°gas	-2170.69	kJ/mol	Relay (1.0) Calculated Property
ΔvapH°	69.50	kJ/mol	Relay (1.0) Calculated Property
IE	9.47	eV	Relay (1.0) Calculated Property
log10WS	-3.00		Relay (1.0) Calculated Property
logPoct/wat	5.029		Crippen Calculated Property
Pc	85.98	kPa	Relay (1.0-beta) Calculated Property
Inp	[1516.00; 1538.00]
Inp	1519.00		NIST
Inp	1516.00		NIST
Inp	1538.00		NIST
Inp	1526.00		NIST
Inp	1526.00		NIST
Inp	1527.00		NIST
Inp	1531.00		NIST
Inp	1537.00		NIST
Inp	1538.00		NIST
Inp	1518.00		NIST
Inp	1516.00		NIST
Inp	1519.00		NIST
Inp	1526.00		NIST
Inp	1538.00		NIST
Tboil	535.42	K	Relay (1.0) Calculated Property
Tc	650.79	K	Relay (1.0) Calculated Property
Tfus	238.00 ± 0.10	K	NIST
Vc	1.739	m3/kmol	Relay (1.0) Calculated Property

Temperature Dependent Properties

Property	Value	Unit	Temperature (K)	Source
ΔfusH	20.88	kJ/mol	237.70	NIST
ΔvapH	[58.60; 60.60]	kJ/mol	[448.00; 489.50]
ΔvapH	58.60	kJ/mol	448.00	NIST
ΔvapH	60.60	kJ/mol	489.50	NIST
Pvap	[0.01; 1.54]	kPa	[338.15; 418.15]
Pvap	0.01	kPa	338.15	Temperature-Dependent Vapor Pressure of Selected Cyclic and Linear Polydimethylsiloxane Oligomers
Pvap	0.02	kPa	348.15	Temperature-Dependent Vapor Pressure of Selected Cyclic and Linear Polydimethylsiloxane Oligomers
Pvap	0.04	kPa	358.15	Temperature-Dependent Vapor Pressure of Selected Cyclic and Linear Polydimethylsiloxane Oligomers
Pvap	0.09	kPa	368.15	Temperature-Dependent Vapor Pressure of Selected Cyclic and Linear Polydimethylsiloxane Oligomers
Pvap	0.16	kPa	378.15	Temperature-Dependent Vapor Pressure of Selected Cyclic and Linear Polydimethylsiloxane Oligomers
Pvap	0.30	kPa	388.15	Temperature-Dependent Vapor Pressure of Selected Cyclic and Linear Polydimethylsiloxane Oligomers
Pvap	0.53	kPa	398.15	Temperature-Dependent Vapor Pressure of Selected Cyclic and Linear Polydimethylsiloxane Oligomers
Pvap	0.91	kPa	408.15	Temperature-Dependent Vapor Pressure of Selected Cyclic and Linear Polydimethylsiloxane Oligomers
Pvap	1.54	kPa	418.15	Temperature-Dependent Vapor Pressure of Selected Cyclic and Linear Polydimethylsiloxane Oligomers

Similar Compounds

Find more compounds similar to Cycloheptasiloxane, tetradecamethyl-.

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
• Temperature-Dependent Vapor Pressure of Selected Cyclic and Linear Polydimethylsiloxane Oligomers
• NIST Webbook

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