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Properties of substance:

potassium hexanitrocobaltate(III)

Group of substances:

inorganic

Physical appearance:

yellow cubic crystals

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

CoK3N6O12

Structural formula as text:

K3[Co(NO2)6]

Molar/atomic mass: 452.26

Decomposition temperature (°C):

200

Solubility (g/100 g of solvent):

diethyl ether: insoluble [Ref.]
ethanol 95%: 0.026 (14°C) [Ref.]
ethyl acetate: insoluble [Ref.]
water: 0.09 (17°C) [Ref.]

Density:

2.64 (20°C, g/cm3)

Reactions:

  1. Yeild 15%. [Ref.1aster]
    K3[Co(NO2)6] + 2H2NCH2CH2NH2 → [Co(H2NCH2CH2NH2)2(NO2)2]NO2 + 3KNO2
    2[Co(H2NCH2CH2NH2)2(NO2)2]NO2 + 2HNO3 → 2[Co(H2NCH2CH2NH2)2(NO2)2]NO3 + NO + NO2 + H2O

References:

  1. Seidell A. Solubilities of inorganic and metal organic compounds. - 3ed., vol.1. - New York: D. Van Nostrand Company, 1940. - pp. 833
  2. Ефимов А.И. и др. Свойства неорганических соединений. Справочник. - Л.: Химия, 1983. - pp. 130-131 [Russian]
  3. Корольченко А.Я., Корольченко Д.А. Пожаровзрывоопасность веществ и материалов и средства их тушения. - 2 изд, Ч.1. - М.: Ассоциация Пожнаука, 2004. - pp. 597-598 [Russian]
  4. Химическая энциклопедия. - Т. 2. - М.: Советская энциклопедия, 1990. - pp. 415 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru