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Properties of substance:

dimethyl oxalate

Group of substances:

organic

Physical appearance:

colorless monoclinic crystals

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

C4H6O4

Structural formula as text:

(COOCH3)2

Molar/atomic mass: 118.088

Melting point (°C):

54

Boiling point (°C):

163.3

CAS №: 553-90-2

Solubility (g/100 g of solvent):

acetone: soluble [Ref.]
chloroform: soluble [Ref.]
diethyl ether: soluble [Ref.]
ethanol: soluble [Ref.]
formic acid 95%: 22.58 (20.2°C) [Ref.]
methanol: soluble [Ref.]
pyridine: 4.8 (20°C) [Ref.]
water: 4.2 (-0.5°C) [Ref.]
water: 6.18 (20°C) [Ref.]
water: 18.8 (44.5°C) [Ref.]
water: miscible (53.5°C) [Ref.]

Density:

1.1479 (54°C, g/cm3)
1.12 (82°C, g/cm3)

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

-756.3 (s)

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

-708.9 (g)

References:

  1. CRC Handbook of Chemistry and Physics. - 90ed. - CRC Press, 2010. - pp. 5-26
  2. Seidell A. Solubilities of organic compounds. - 3ed., vol.2. - New York: D. Van Nostrand Company, 1941. - pp. 223-224
  3. Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 395 [Russian]
  4. Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 1112-1113 [Russian]
  5. Фрейдлин Г.Н. Алифатические дикарбоновые кислоты. - М., 1978. - pp. 18 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru