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Properties of substance:

disulfur dibromide

Synonyms:

sulfur(I) bromide

Group of substances:

inorganic

Physical appearance:

red fuming liquid

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

Br2S2

Structural formula as text:

S2Br2

Molar/atomic mass: 223.93

Melting point (°C):

-40

CAS №: 13172-31-1


Solubility (g/100 g of solvent):

benzene: soluble [Ref.]
carbon disulphide: soluble [Ref.]
carbon tetrachloride: soluble [Ref.]
water: reaction [Ref.]

Density:

2.635 (20°C, g/cm3)

Reactions of synthesis:

  1. [Ref.1]
    2S + Br → S2Br2
  2. [Ref.1aster, Ref.2aster]
    2S + Br → S2Br2

Vapour pressure (Torr):

0.2 (57°C)

Standard molar enthalpy (heat) of formation ΔfH0 (298.15 K, kJ/mol):

-15 (l)

References:

  1. Некрасов Б.В. Основы общей химии. - Т.1. - М.: Химия, 1973. - pp. 326 [Russian]
  2. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 96 [Russian]
  3. Химическая энциклопедия. - Т. 4. - М.: Советская энциклопедия, 1995. - pp. 332 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru