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Properties of substance:

calcium dichromate trihydrate

Synonyms:

calcium dichromate - water (1/3)

Group of substances:

inorganic

Physical appearance:

orange-red crystals

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

H6CaCr2O10

Structural formula as text:

CaCr2O7 * 3H2O

Molar/atomic mass: 310.1118

Decomposition temperature (°C):

105-125

Solubility (g/100 g of solvent):

carbon tetrachloride: insoluble [Ref.]
diethyl ether: insoluble [Ref.]
water: 155.8 (-12.2°C) [Ref.]
water: 179.3 (0.4°C) [Ref.]
water: 224.5 (20°C) [Ref.]
water: 310.7 (40°C) [Ref.]
water: 390.4 (60°C) [Ref.]

Properties of solutions:

59,22% (wt.), solvent - water
  Density of a material to that water at 4°C = 1.5469 (30°)
  Freezing point (°C) = -29.9
66,1% (wt.), solvent - water
  Density of a material to that water at 4°C = 1.6469 (30°)

Density:

2.37 (30°C, d4)

References:

  1. Journal of the American Chemical Society. - 1950. - Vol. 72, No. 8. - pp. 3353-3356 [DOI: 10.1021/ja01164a007]
  2. Волков А.И., Жарский И.М. Большой химический справочник. - Минск: Современная школа, 2005. - pp. 127 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru