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Properties of substance:

arsenic trioxide amorphous

Synonyms:

arsenic(III) oxide amorphous

Group of substances:

inorganic

Physical appearance:

white amorphous substance

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

As2O3

Structural formula as text:

As2O3

Molar/atomic mass: 197.84

Melting point (°C):

315

Boiling point (°C):

461

Solubility (g/100 g of solvent):

carbon disulphide: 0.001 (15°C) [Ref.]
diethyl ether: 0.454 (15°C) [Ref.]
ethanol: 0.446 (15°C) [Ref.]
water: 3.7 (20°C) [Ref.]
water: 10.1 (100°C) [Ref.]

Density:

3.74 (20°C, g/cm3)

Reactions:

  1. Yeild 90%. [Ref.1aster]
    As2O3 + 6KI + 6HCl → 2AsI3 + 6KCl + 3H2O

LD50 (mg/kg):

10 (mice, intraperitoneal)

References:

  1. Seidell A. Solubilities of inorganic and metal organic compounds. - 3ed., vol.1. - New York: D. Van Nostrand Company, 1940. - pp. 107-110
  2. Вредные химические вещества: Неорганические соединения элементов V-VIII групп. Справочник. - Л., 1989. - pp. 88 [Russian]
  3. Немодрук А.А. Аналитическая химия мышьяка. - М.: Наука, 1976. - pp. 13-15 [Russian]
  4. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 82 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru