Main page (Russian) Search in database (English)

Properties of substance:

sodium dichromate dihydrate

Group of substances:

inorganic

Physical appearance:

red monoclinic crystals

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

H4Cr2Na2O9

Structural formula as text:

Na2Cr2O7 * 2H2O

Molar/atomic mass: 297.998

Decomposition temperature (°C):

100

Solubility (g/100 g of solvent):

dimethylformamide: 20 (25°C) [Ref.]
dimethylsulfoxide: 10 (25°C) [Ref.]
ethanol abs.: reaction 6.128 (19.4°C) [Ref.]
water: 236.7 (0°C) [Ref.]
water: 252.1 (10°C) [Ref.]
water: 275.9 (20°C) [Ref.]
water: 303.2 (30°C) [Ref.]
water: 338.6 (40°C) [Ref.]
water: 380.8 (50°C) [Ref.]
water: 440.5 (60°C) [Ref.]
water: 549.4 (70°C) [Ref.]
water: 769.6 (80°C) [Ref.]
water: 1036.4 (90°C) [Ref.]
water: 1119.5 (100°C) [Ref.]

Properties of solutions:

69% (wt.), solvent - water
  Freezing point (°C) = -48.2
70% (wt.), solvent - water
  Density (g/cm3) = 1.695 (25°)

Density:

2.52 (20°C, g/cm3)

References:

  1. Seidell A. Solubilities of inorganic and metal organic compounds. - 3ed., vol.1. - New York: D. Van Nostrand Company, 1940. - pp. 1257
  2. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 86 [Russian]

    What information do you need?




    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru