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Properties of substance:

rubidium azide

Group of substances:

inorganic

Physical appearance:

colorless tetragonal crystals

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

N3Rb

Structural formula as text:

RbN3

Molar/atomic mass: 127.5

Melting point (°C):

330

Decomposition temperature (°C):

395

Solubility (g/100 g of solvent):

diethyl ether: insoluble [Ref.]
ethanol: 0.182 (16°C) [Ref.]
water: 107.1 (16°C) [Ref.]
water: 114.1 (17°C) [Ref.]

Hygroscopic:

yes

Density:

2.937 (20°C, g/cm3)

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

4.18 (s)

Standard molar entropy S0 (298.15 K, J/(mol·K)):

120.4 (s)

Molar heat capacity at constant pressure Cp (298.15 K, J/(mol·K)):

79.9 (s)

References:

  1. Seidell A. Solubilities of inorganic and metal organic compounds. - 3ed., vol.1. - New York: D. Van Nostrand Company, 1940. - pp. 1439
  2. Багал Л.И. Химия и технология инициирующих взрывчатых веществ. - М., 1975. - pp. 159-160 [Russian]
  3. Ефимов А.И. и др. Свойства неорганических соединений. Справочник. - Л.: Химия, 1983. - pp. 182-183 [Russian]
  4. Энергетические конденсированные системы. - Под ред. Жукова Б.П., 2-е изд. - М.: Янус-К, 2000. - pp. 19 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru