Chemical Properties of Tetraethyl silicate (CAS 78-10-4)

InChI

InChI=1S/C8H20O4Si/c1-5-9-13(10-6-2,11-7-3)12-8-4/h5-8H2,1-4H3

InChI Key

BOTDANWDWHJENH-UHFFFAOYSA-N

Formula

C8H20O4Si

SMILES

CCO[Si](OCC)(OCC)OCC

Molecular Weight¹

208.33

CAS

78-10-4

Other Names

• (C2H5O)4Si
• Dynasil A
• ES 100
• ES 28
• ES 28 (ester)
• Ethyl orthosilicate
• Ethyl silicate, ((EtO)4Si)
• Etylu krzemian
• NSC 4790
• Silicate d'ethyle
• Silicate tetraethylique
• Silicic acid (H4SiO4), tetraethyl ester
• Silicic acid, tetraethyl ester
• Silicon ethoxide
• Silikan L
• TEOS
• Tetraethoxysilicon
• Tetraethyl orthosilicate
• Tetraethylsilikat
• UN 1292
• silane, tetraethoxy-
• silicon tetraethoxide
• tetraethoxysilane

• ω : Acentric Factor.
• C_p,liquid : Liquid phase 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 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).
• n₀ : Refractive Index.
• ρ_l : Liquid Density (kg/m³).
• I_np : Non-polar retention indices.
• Δ_fusS : Entropy of fusion at a given temperature (J/mol×K).
• S°_liquid : Liquid phase molar entropy at standard conditions (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
ω	0.5311		Relay (1.0) Calculated Property
ΔfG°	-368.32	kJ/mol	Relay (1.0-beta) Calculated Property
ΔfH°gas	-952.54	kJ/mol	Relay (1.0) Calculated Property
ΔvapH°	[48.50; 53.90]	kJ/mol
ΔvapH°	53.90	kJ/mol	NIST
ΔvapH°	52.30	kJ/mol	NIST
ΔvapH°	48.50 ± 0.30	kJ/mol	NIST
IE	9.77	eV	NIST
log10WS	-1.46		Relay (1.0) Calculated Property
logPoct/wat	1.568		Crippen Calculated Property
Pc	2040.00	kPa	Vapor-Liquid Critical Properties of Some Tetraalkoxysilanes
Inp	[847.00; 869.00]
Inp	Outlier 869.00		NIST
Inp	850.00		NIST
Inp	851.20		NIST
Inp	847.00		NIST
Inp	850.00		NIST
Inp	850.00		NIST
Inp	847.00		NIST
S°liquid	533.10	J/mol×K	NIST
Tboil	[439.70; 442.00]	K
Tboil	439.70 ± 1.00	K	NIST
Tboil	442.00	K	NIST
Tboil	441.95 ± 0.50	K	NIST
Tc	583.88	K	Relay (1.0) Calculated Property
Tfus	191.00 ± 0.10	K	NIST
Vc	0.663	m3/kmol	Relay (1.0) Calculated Property

Temperature Dependent Properties

Property	Value	Unit	Temperature (K)	Source
Cp,liquid	[352.10; 364.40]	J/mol×K	[298.15; 298.15]
Cp,liquid	364.40	J/mol×K	298.15	NIST
Cp,liquid	352.10	J/mol×K	298.15	NIST
ΔfusH	[11.14; 13.20]	kJ/mol	[187.70; 191.00]
ΔfusH	13.20	kJ/mol	187.70	NIST
ΔfusH	11.14	kJ/mol	191.00	NIST
ΔfusH	11.14	kJ/mol	191.00	NIST
ΔvapH	[40.90; 50.00]	kJ/mol	[365.00; 420.50]
ΔvapH	49.50	kJ/mol	365.00	NIST
ΔvapH	50.00	kJ/mol	376.50	NIST
ΔvapH	40.90	kJ/mol	420.50	NIST
Pvap	[24.00; 53.32]	kPa	[393.40; 419.20]
Pvap	24.00	kPa	393.40	Vapor-Liquid Equilibrium Measurements for Tetraethyl Orthosilicate + Ethanol at 24.00 kPa and 53.32 kPa
Pvap	53.32	kPa	419.20	Vapor-Liquid Equilibrium Measurements for Tetraethyl Orthosilicate + Ethanol at 24.00 kPa and 53.32 kPa
n0	[1.38250; 1.38350]		[293.15; 298.15]
n0	1.38350		293.15	Isobaric Vapor Liquid Equilibrium Data for the Binary Mixtures 2-Methyl Propan-2-ol with Tetraethoxysilane and 1-Phenyl Ethanone at 95.5 kPa
n0	1.38250		298.15	(Vapor + liquid) equilibrium of the binary mixtures formed by acetonitrile with selected compounds at 95.5 kPa
ρl	1032.00	kg/m3	293.15	Bubble point measurements of binary mixtures formed by ethyl benzene with selected compounds at 95.35 kPa
ΔfusS	[58.33; 70.32]	J/mol×K	[187.70; 191.00]
ΔfusS	70.32	J/mol×K	187.70	NIST
ΔfusS	58.33	J/mol×K	191.00	NIST

Similar Compounds

Find more compounds similar to Tetraethyl silicate.

Mixtures

• Acetonitrile + Tetraethyl silicate
• Ethylbenzene + Tetraethyl silicate
• Ethanol + Tetraethyl silicate
• 2-Propanol, 2-methyl- + Tetraethyl silicate
• Carbon dioxide + Tetraethyl silicate

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
• Phase behavior for carbon dioxide/tetraalkoxysilane systems
• (Vapor + liquid) equilibrium of the binary mixtures formed by acetonitrile with selected compounds at 95.5 kPa
• Bubble point measurements of binary mixtures formed by ethyl benzene with selected compounds at 95.35 kPa
• Vapor-Liquid Equilibrium Measurements for Tetraethyl Orthosilicate + Ethanol at 24.00 kPa and 53.32 kPa
• Isobaric Vapor Liquid Equilibrium Data for the Binary Mixtures 2-Methyl Propan-2-ol with Tetraethoxysilane and 1-Phenyl Ethanone at 95.5 kPa
• Vapor-Liquid Critical Properties of Some Tetraalkoxysilanes
• Binary Phase Diagram of Tetraethyl Orthosilicate and Carbon Dioxide
• NIST Webbook

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Outlier This icon means that the value is more than 2 standard deviations away from the property mean.