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Properties of substance:

sodium oxalate

Group of substances:

inorganic

Physical appearance:

colorless crystals

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

C2Na2O4

Structural formula as text:

(COONa)2

Molar/atomic mass: 133.999

Melting point (°C):

250-270

Decomposition temperature (°C):

250-400

Solubility (g/100 g of solvent):

deuterium oxide: 2.25 (5°C) [Ref.]
diethyl ether: insoluble [Ref.]
ethanol: insoluble [Ref.]
formic acid 95%: 8.8 (19.3°C) [Ref.]
water: 2.69 (0°C) [Ref.]
water: 3.7 (20°C) [Ref.]
water: 4.57 (50°C) [Ref.]
water: 6.3 (100°C) [Ref.]

Density:

2.34 (20°C, g/cm3)

Standard molar enthalpy (heat) of formation ΔfH (298 K, kJ/mol)

-1315 (s) [Ref.]

References:

  1. CRC Handbook of Chemistry and Physics. - 90ed. - CRC Press, 2010. - pp. 5-23
  2. Dean J.A. Lange's handbook of chemistry. - 1999. - pp. 3.51
  3. Seidell A. Solubilities of inorganic and metal organic compounds. - 3ed., vol.1. - New York: D. Van Nostrand Company, 1940. - pp. 1214-1217
  4. Ефимов А.И. и др. Свойства неорганических соединений. Справочник. - Л.: Химия, 1983. - pp. 166-167 [Russian]
  5. Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 138, 673 [Russian]
  6. Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 148-149 [Russian]
  7. Хёрд Ч.Д. Пиролиз соединений углерода. - Л.-М.: ГОНТИ РКТП СССР, 1938. - pp. 464 [Russian]
  8. Химический энциклопедический словарь. - Под ред. Кнунянц И.Л. - М.: Советская энциклопедия, 1983. - pp. 363 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru