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CAS No 142-71-2 , copper Search by region : China

  • Name: copper
  • Synonyms: Crystals of venus; Neutral verdigris; Cupric diacetate;copper; Copper diacetate;Copper(II) acetate; Venus copper;diacetate; 142-71-2; Copper acetate;
  • CAS Registry Number:
  • Transport: UN 3077
  • Melting Point: 115 ºC
  • Density: 1.068g/cm3
  • Water Solubility: Soluble in water
  • Safety Statements: R22;R36/37/38;R50/53
  • Hazard Symbols: Xn: Harmful;N: Dangerous for the environment;
  • EINECS: 205-553-3
  • Molecular Weight: 181.63404
  • InchiKey: OPQARKPSCNTWTJ-UHFFFAOYSA-L
  • InChI: InChI=1S/2C2H4O2.Cu/c2*1-2(3)4;/h2*1H3,(H,3,4);/q;;+2/p-2
  • Risk Statements: S26;S60;S61
  • Molecular Formula: C4H6CuO4
  • Molecular Structure:CAS No:142-71-2 copper

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References of copper
Title: Cupric Acetate
CAS Registry Number: 142-71-2
CAS Name: Acetic acid copper (2+) salt
Molecular Formula: C4H6CuO4
Molecular Weight: 181.63
Percent Composition: C 26.45%, H 3.33%, Cu 34.99%, O 35.24%
Line Formula: Cu(CH3COO)2
Literature References: Prepd by the action of acetic acid on CuO or CuCO3: Winter et al., in Kirk-Othmer Encyclopedia of Chemical Technology vol. 6 (Interscience, New York, 2nd ed., 1965) p 267. Toxicity study: H. F. Smyth et al., Am. Ind. Hyg. Assoc. J. 30, 470 (1969).
 
Derivative Type: Monohydrate
Synonyms: Neutral verdigris
Properties: Dark green, monoclinic crystals; exists in dimeric units. mp 115°; dec at 240°; d 1.882. Sol in water, alcohol; slightly sol in ether, glycerol. LD50 orally in rats: 0.71 g/kg (Smyth).
Melting point: mp 115°
Density: d 1.882
Toxicity data: LD50 orally in rats: 0.71 g/kg (Smyth)
 
Derivative Type: Verdigris
CAS Registry Number: 8007-61-2
CAS Name: C.I. Pigment Green 20
Synonyms: C.I. 77408
Properties: Prepn: Colour Index vol. 4 (3rd ed, 1971) p 4666. Commercial product is a mixture of basic cupric acetate salts with variable waters of hydration, resulting in blue to green powders. Slightly sol in water, ethanol; sol in dil acids, ammonia.
 
Use: Intermediate in manuf of Paris green, q.v.; as fungicide; as catalyst for organic reactions, including rubber aging; in textile dyeing; as pigment for ceramics.