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CAS No 7789-04-0 , chromium(3+)

  • Name: chromium(3+)
  • Synonyms: Arnaudon's Green; Chromium monophosphate;chromium(3+); chromium(3+) phosphate;CHROMIUM PHOSPHATE;phosphate; chromium(3+)(32p)phosphate; Chromium orthophosphate;
  • CAS Registry Number:
  • Transport: UN 1759 8/PG 1
  • Melting Point: 120-140 °C (dec.)(lit.)
  • Boiling Point: decomposes
  • Density: 2.12 g/mL at 25 °C(lit.)
  • Water Solubility: Insoluble in water
  • Safety Statements: 26-36/37/39-45
  • Hazard Symbols: C
  • EINECS: 232-141-0
  • Molecular Weight: 146.967462
  • InchiKey: IKZBVTPSNGOVRJ-UHFFFAOYSA-K
  • InChI: InChI=1S/Cr.H3O4P/c;1-5(2,3)4/h;(H3,1,2,3,4)/q+3;/p-3
  • Risk Statements: 34
  • Molecular Formula: CrO4P
  • Molecular Structure:CAS No:7789-04-0 chromium(3+)

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References of chromium(3+)
Title: Chromic Phosphate
CAS Registry Number: 7789-04-0
Molecular Formula: CrO4P
Molecular Weight: 146.97
Percent Composition: Cr 35.38%, O 43.54%, P 21.07%
Line Formula: CrPO4
Literature References: Prepn: Ness et al., J. Am. Chem. Soc. 74, 4685 (1952); Eickhoff, Kebrich, US 2749214 (1956 to National Lead); Wegenknecht, DE 1046597 (1958); DE 1056104 (1959).
Properties: Gray-brown to black crystals of amorphous solid. Does not melt by 1800°. d32.5 2.94. Partially oxidizes to CrO3 on heating in air. Practically insol in water, acetic acid, HCl, aqua regia.
Density: d32.5 2.94
 
Derivative Type: Hemiheptahydrate
Synonyms: Arnaudon's green; Plessy's green
Properties: Blue-green powder. d 2.15. Practically insol in water. Sol in acids.
Density: d 2.15
 
Derivative Type: Hexahydrate
Properties: Violet crystals. Loses water gradually on heating, becoming anhydr after one hour at 800° or 3-4 hrs at 500°. d14 2.121. Practically insol in water. Slightly sol in acetic acid solns; readily sol in mineral acids, alkalis, oxalic acid solns.
Density: d14 2.121
 
Derivative Type: Radioactive Form
CAS Registry Number: 24381-60-0
Trademarks: Phosphocol (Mallinckrodt)
Molecular Formula: Cr32PO4
 
Use: Green pigment; in wash primers; in catalysts for dehydrogenation of hydrocarbons or polymerization of olefins.
Therap-Cat: Radioactive form as antineoplastic (radioactive agent).