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Properties of substance:

tantalum(V) bromide

Group of substances:

inorganic

Physical appearance:

yellow crystals

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

Br5Ta

Structural formula as text:

TaBr5

Molar/atomic mass: 580.47

Melting point (°C):

265

Boiling point (°C):

348.8

Solubility (g/100 g of solvent):

acetamide: soluble with reaction [Ref.]
acetonitrile: soluble with reaction [Ref.]
ammonia liquid : soluble with solvolysis [Ref.]
aniline: soluble with reaction [Ref.]
bromoethane: 0.176 (0°C) [Ref.]
bromoethane: 0.274 (20°C) [Ref.]
bromoethane: 0.294 (25°C) [Ref.]
carbon tetrachloride: 0.52 (20°C) [Ref.]
carbon tetrachloride: 0.78 (30°C) [Ref.]
carbon tetrachloride: 0.97 (38°C) [Ref.]
diethyl ether: soluble [Ref.]
ethanol abs.: soluble [Ref.]
methanol: soluble with reaction [Ref.]
water: reaction [Ref.]

Not numerical data:

very hygroscopic

Density:

4.67 (g/cm3)

Reactions of synthesis:

  1. Yeild 80,4%. [Ref.1aster]
    2Ta + 5Br2 → 2TaBr5

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

-598.3 (s)

References:

  1. Ефимов А.И. и др. Свойства неорганических соединений. Справочник. - Л.: Химия, 1983. - pp. 200-201 [Russian]
  2. Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 957 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru