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Properties of substance:

tetraethoxysilane

Synonyms:

tetraethyl orthosilicate
ethyl silicate

Group of substances:

organic

Physical appearance:

liquid

Empirical formula (Hill's system for organic substances):

C8H20O4Si

Structural formula as text:

Si(OC2H5)4

Molar/atomic mass: 208.34

Melting point (°C):

-82.5

Boiling point (°C):

166.5

Decomposition temperature (°C):

200-250

Solubility (g/100 g of solvent):

diethyl ether: very soluble [Ref.]
ethanol: very soluble [Ref.]
water: insoluble [Ref.]

Density:

0.9676 (0°C, g/cm3)
0.9334 (20°C, g/cm3)

Refractive index (nD):

1.3928 (20°C)

Standard molar enthalpy (heat) of formation ΔfH0 (298.15 K, kJ/mol):

-1381 (l)

LD50 (mg/kg):

420 (white rats, intraperitoneal)

References:

  1. CRC Handbook of Chemistry and Physics. - 95ed. - CRC Press, 2014. - pp. 3-268
  2. Некрасов Б.В. Основы общей химии. - Т.1. - М.: Химия, 1973. - pp. 606 [Russian]
  3. Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 948-949 [Russian]
  4. Химическая энциклопедия. - Т. 1. - М.: Советская энциклопедия, 1988. - pp. 98 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru