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CAS No 13548-42-0 , copper chromate

  • Name: copper chromate
  • Synonyms: Copper chromate;CCRIS 8179;copper chromate;Chromic acid (H2CrO4), copper(2+) salt (1:1);Cupric chromate(VI);Copper chromium oxide (CuCrO4);copper(2+) dioxido(dioxo)chromium;
  • CAS Registry Number:
  • Flash Point: °C
  • Boiling Point: °Cat760mmHg
  • Density: g/cm3
  • Flash Point: °C
  • EINECS: 236-922-7
  • Molecular Weight: 179.5397
  • InChI: InChI=1/Cr.Cu.4O/q;+2;;;2*-1/rCrO4.Cu/c2-1(3,4)5;/q-2;+2
  • Molecular Formula: CrCuO4
  • Molecular Structure:CAS No:13548-42-0 copper chromate

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13548-42-0 COPPER (II) CHROMATE

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References of copper chromate
Title: Cupric Chromate(VI)
CAS Registry Number: 13548-42-0
Synonyms: Neutral cupric chromate
Molecular Formula: CrCuO4
Molecular Weight: 179.54
Percent Composition: Cr 28.96%, Cu 35.39%, O 35.65%
Line Formula: CuCrO4
Literature References: Prepn from CuCO3, Na2CrO4 and CrO3: Briggs, J. Chem. Soc. 1929, 242; from CuO and CrO3: Campbell, Lemaire, Can. J. Res. 25B, 243 (1947); from Cu(OH)2 and K2Cr2O7: Winter et al., in Kirk-Othmer Encyclopedia of Chemical Technology vol. 6 (Interscience, New York, 2nd ed., 1965) p 270.
Properties: Reddish-brown crystals. Gradually dec to CuCr2O4 above 400°. Practically insol in water; sol in acids.
 
Derivative Type: Basic cupric chromates
Properties: Several cupric chromate-cupric hydroxide compounds are known. CuCrO4.Cu(OH)2 forms yellow, copper-red or chocolate-brown to lilac crystals; CuCrO4.2Cu(OH)2, a light brown powder; 2CuCrO4.3Cu(OH)2, yellow to yellowish-brown crystals. Prepn: Campbell, Lemaire, loc. cit.; Winter et al., loc. cit. All are practically insol in water.
 
Use: In fungicides, seed protectants, and wood preservatives; as mordant in dyeing textiles; in protecting textiles against insects and microorganisms.