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Properties of substance:

sodium dithionate dihydrate

Group of substances:

inorganic

Physical appearance:

colorless rhombic crystals

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

H4Na2O8S2

Structural formula as text:

Na2S2O6 * 2H2O

Molar/atomic mass: 242.136

Decomposition temperature (°C):

110

Solubility (g/100 g of solvent):

ethanol: insoluble [Ref.]
water: 40.5 (16°C) [Ref.]
water: 77.4 (100°C) [Ref.]

Density:

2.19 (20°C, g/cm3)

References:

  1. Волков А.И., Жарский И.М. Большой химический справочник. - Минск: Современная школа, 2005. - pp. 181 [Russian]
  2. Ефимов А.И. и др. Свойства неорганических соединений. Справочник. - Л.: Химия, 1983. - pp. 164-165 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru