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CAS No 10049-05-5 , dichlorochromium Search by region : Germany

  • Name: dichlorochromium
  • Synonyms: chromium(2+) dichloride;dichlorochromium;Chromium(II) chloride; 10049-05-5; HSDB 988; CHROMOUS CHLORIDE; Chromium chloride (CrCl2); Chromium dichloride;
  • CAS Registry Number:
  • Transport: UN3260
  • Melting Point: 824 C
  • Flash Point: °C
  • Boiling Point: °Cat760mmHg
  • Density: g/cm3
  • Safety Statements: 26-36
  • Hazard Symbols: Xn
  • Flash Point: °C
  • EINECS: 233-163-3
  • Molecular Weight: 122.9021
  • InchiKey: XBWRJSSJWDOUSJ-UHFFFAOYSA-L
  • InChI: InChI=1S/2ClH.Cr/h2*1H;/q;;+2/p-2
  • Risk Statements: 22-36/37/38
  • Molecular Formula: Cl2Cr
  • Molecular Structure:CAS No:10049-05-5 dichlorochromium

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References of dichlorochromium
Title: Chromous Chloride
CAS Registry Number: 10049-05-5
Molecular Formula: Cl2Cr
Molecular Weight: 122.90
Percent Composition: Cl 57.69%, Cr 42.31%
Line Formula: CrCl2
Literature References: Prepn: Burg, Inorg. Synth. 3, 150 (1950); Hein, Herzog, in Handbook of Preparative Inorganic Chemistry Vol. 2, G. Brauer, Ed. (Academic Press, New York, 2nd ed. 1965) pp 1336-1338. Prepn of tetrahydrate: Balthis, Jr., Bailar, Jr., Inorg. Synth. 1, 125 (1939); Holah, Fackler, ibid. 10, 26 (1967). Toxicity study: H. F. Smyth et al., Am. Ind. Hyg. Assoc. J. 30, 470 (1969).
Properties: Lustrous needles or fused, fibrous mass. mp 824°; d414 2.751. Very hygroscopic; stable in dry air but oxidizes rapidly if moist. Powerful reducing agent. Soluble in water giving a blue soln. Keep well closed. LD50 orally in rats: 1.87 g/kg (Smyth).
Melting point: mp 824°
Density: d414 2.751
Toxicity data: LD50 orally in rats: 1.87 g/kg (Smyth)
 
Derivative Type: Tetrahydrate
Synonyms: Tetraaquochromium dichloride
Properties: Bright blue, hygroscopic crystals. Above 38° changes to isomeric green modification. Loses 1H2O, forming trihydrate, at 51°. Absorbs O2 even when dry, forming a greenish-black oxychloride. Sol in water. Almost insol in concd HCl. On standing in soln it is oxidized by the water with liberation of H2. Keep well closed.
 
Use: In chromizing; in prepn of Cr metal; in catalysts for organic reactions; as O2 absorbent; in analysis.