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CAS No 71-48-7 , cobalt(2+)

  • Name: cobalt(2+)
  • Synonyms: cobalt(2+); Cobalt di(acetate); Cobalt diacetate; Cobaltous diacetate; Acetic acid;Cobalt acetate; cobalt(2+) salt; Bis(acetato)cobalt;diacetate;
  • CAS Registry Number:
  • Melting Point: 298 ºC (DEC.)
  • Density: 1.7043g/cm3
  • Safety Statements: R22;R36/37/38;R40;R43;R53
  • Hazard Symbols: Xn: Harmful;
  • EINECS: 200-755-8
  • Molecular Weight: 177.021235
  • InchiKey: QAHREYKOYSIQPH-UHFFFAOYSA-L
  • InChI: InChI=1S/2C2H4O2.Co/c2*1-2(3)4;/h2*1H3,(H,3,4);/q;;+2/p-2
  • Risk Statements: S22;S26;S36/37/39;S45
  • Molecular Formula: C4H6CoO4
  • Molecular Structure:CAS No:71-48-7 cobalt(2+)
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71-48-7 Cobalt acetate

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References of cobalt(2+)
Title: Cobaltous Acetate
CAS Registry Number: 71-48-7
Molecular Formula: C4H6CoO4
Molecular Weight: 177.02
Percent Composition: C 27.14%, H 3.42%, Co 33.29%, O 36.15%
Line Formula: Co(C2H3O2)2
Literature References: Prepd commercially from cobaltous hydroxide or carbonate and an excess of dil acetic acid: Morral in Kirk-Othmer Encyclopedia of Chemical Technology vol. 5 (Interscience, New York, 2nd ed., 1964) p 737; prepn from powdered Co and acetic acid: Hahl, US 3133942 (1964 to BASF); prepn by oxidation of Co carbonyls in the presence of acetic acid: Gwynn et al., US 3246024 (1966 to Gulf). Review: de Bie, Doyen, Cobalt 15, 3-13; 16, 3-15 (1962).
Properties: Light-pink crystals. Readily sol in water.
 
Derivative Type: Tetrahydrate
Synonyms: Bis(acetato)tetraaquocobalt
Properties: Intense red, monoclinic, prismatic crystals. d 1.705. On heating becomes anhydrous by 140°. Sol in water, alcohols, dil acids, pentyl acetate. pH of 0.2 molar aq soln 6.8.
Density: d 1.705
 
Use: Bleaching agent and drier for lacquers, varnishes; in anodizing; catalyst for oxidation and esterification; foam stabilizer for malt beverages.