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Properties of substance:

sodium hydrogen arsenate heptahydrate

Group of substances:

inorganic

Physical appearance:

colorless monoclinic crystals

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

H15AsNa2O11

Structural formula as text:

Na2HAsO4 * 7H2O

Molar/atomic mass: 312.01

Melting point (°C):

57

Decomposition temperature (°C):

100

Solubility (g/100 g of solvent):

water: 3.3 (0°C) [Ref.]
water: 30 (14°C) [Ref.]
water: 65 (30°C) [Ref.]

Density:

1.88 (20°C, g/cm3)

LD50 (mg/kg):

87.36 (mice, intramuscular)

References:

  1. Lewis R.J. Sax's Dangerous Properties of Industrial Materials. - 11ed. - Wiley-interscience, 2004. - pp. 298-299
  2. Ефимов А.И. и др. Свойства неорганических соединений. Справочник. - Л.: Химия, 1983. - pp. 162-163 [Russian]
  3. Химический энциклопедический словарь. - Под ред. Кнунянц И.Л. - М.: Советская энциклопедия, 1983. - pp. 362 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru