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Properties of substance:

potassium hydrogen sulfite

Group of substances:

inorganic

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

HKO3S

Structural formula as text:

KHSO3

Molar/atomic mass: 120.169

Decomposition temperature (°C):

190

Solubility (g/100 g of solvent):

water: 44.72 (14°C) [Ref.]
water: 49 (20°C) [Ref.]
water: 54.67 (31°C) [Ref.]
water: 62.86 (40°C) [Ref.]
water: 66.67 (50°C) [Ref.]
water: 76.57 (60°C) [Ref.]
water: 109 (90°C) [Ref.]
water: 115.3 (100°C) [Ref.]

Reactions:

  1. [Ref.1aster]
    2KHSO3 + SCl2 → K2S3O6 + 2HCl

References:

  1. Лидин Р.А., Андреева Л.Л., Молочко В.А. Константы неорганических веществ. - М.: Дрофа, 2006. - pp. 121 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru