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CAS No 10031-25-1 , chromium(3+)

  • Name: chromium(3+)
  • Synonyms: AG-D-05050;tribromide; CTK3J8772; AC1L335G; AR-1I2315;chromium(3+); Chromium bromide(CrBr3); Chromium(III) bromide;10031-25-1;
  • CAS Registry Number:
  • Flash Point: °C
  • Boiling Point: °Cat760mmHg
  • Density: g/cm3
  • Flash Point: °C
  • EINECS: 233-088-6
  • Molecular Weight: 291.7081
  • InchiKey: UZDWIWGMKWZEPE-UHFFFAOYSA-K
  • InChI: InChI=1S/3BrH.Cr/h3*1H;/q;;;+3/p-3
  • Molecular Formula: Br3Cr
  • Molecular Structure:CAS No:10031-25-1 chromium(3+)

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References of chromium(3+)
Title: Chromic Bromide
CAS Registry Number: 10031-25-1
Molecular Formula: Br3Cr
Molecular Weight: 291.71
Percent Composition: Br 82.17%, Cr 17.82%
Line Formula: CrBr3
Literature References: Prepd by passing Br2 vapor over Cr powder at 1000°: Hein, Herzog, in Handbook of Preparative Inorganic Chemistry vol. 2, G. Brauer, Ed. (Academic Press, New York, 2nd ed., 1965) p 1341.
Properties: Black, lustrous, hexagonal crystals; green in transmitted and reddish in reflected light. Sol in cold water only upon addition of chromous salts; sol in boiling water.
 
Derivative Type: Hexahydrate
Properties: At least two isomeric forms exist. Dibromotetraaquochromium bromide dihydrate, [CrBr2(H2O)4]Br.2H2O; green, deliquesc crystals; sol in water, alc. Hexaaquochromium tribromide, [Cr(H2O)6]Br3; violet, deliquesc crystals; sol in water. Insol in alc. Both forms practically insol in ether.
 
Use: In catalysts for polymerization of olefins.