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Properties of substance:

calcium oxalate monohydrate

Group of substances:

inorganic

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

C2H2CaO5

Structural formula as text:

CaC2O4 * H2O

Molar/atomic mass: 146.11

Decomposition temperature (°C):

200

Solubility (g/100 g of solvent):

water: 0.0006 (20°C) [Ref.]

Dissociation:

pKsp (0) = 8.7 (20°C, water)

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

-1670 (s)

Standard molar Gibbs energy of formation ΔfG0 (298.15 K, kJ/mol):

-1509 (s)

Standard molar entropy S0 (298.15 K, J/(mol·K)):

156 (s)

References:

  1. Canadian Journal of Chemistry. - 1968. - Vol. 46. - pp. 262
  2. Dean J.A. Lange's handbook of chemistry. - 1999. - pp. 3.22
  3. Лидин Р.А., Андреева Л.Л., Молочко В.А. Константы неорганических веществ. - М.: Дрофа, 2006. - pp. 89 [Russian]
  4. Некрасов Б.В. Основы общей химии. - Т.2. - М.: Химия, 1973. - pp. 175 [Russian]
  5. Фрумина Н.С., Кручкова Е.С., Муштакова С.П. Аналитическая химия кальция. - М.: Наука, 1974. - pp. 26-31 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru