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CAS No 135-20-6 , Cupferron Search by region : Belgium

  • Name: Cupferron
  • Synonyms: Cupferron for analysis;Cupferron; N-Nitroso-N-phenylhydroxyamine ammonium salt;N-Hydroxy-N-nitrosobenzenamine ammonium salt; copperone; N-Hydroxy-N-nitrosobenzenamine ammonium salt;Ammonium nitrosophenylhydroxylamine; N-Nitroso-N-phenylhydroxylamine ammonium salt;
  • CAS Registry Number:
  • Transport: UN 2811
  • Melting Point: 150-155 ºC
  • Water Solubility: <0.1 G/100 ML AT 18.5 ºC
  • Safety Statements: R25;R36/37/38;R40
  • Hazard Symbols: T: Toxic;
  • EINECS: 205-183-2
  • Molecular Weight: 155.15
  • InChI: InChI=1/C6H6N2O2.H3N/c9-7-8(10)6-4-2-1-3-5-6;/h1-5,10H;1H3
  • Risk Statements: S26;S36/37;S45
  • Molecular Formula: C6H9N3O2
  • Molecular Structure:CAS No:135-20-6 Cupferron

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References of Cupferron
Title: Cupferron
CAS Registry Number: 135-20-6
CAS Name: N-Hydroxy-N-nitrosobenzenamine ammonium salt
Synonyms: N-nitrosophenylhydroxylamine ammonium salt
Molecular Formula: C6H9N3O2
Molecular Weight: 155.15
Percent Composition: C 46.45%, H 5.85%, N 27.08%, O 20.62%
Literature References: Prepd from phenylhydroxylamine by treating with NaNO2 at 0° in presence of HCl, filtering, dissolving in ether and treating with NH3, or by treating an ether soln of phenylhydroxylamine with butyl or amyl nitrite and NH3 in the cold: Marvel, Kamm, Org. Synth. 4, 19 (1925).
Properties: Crystals, mp 163-164°. Freely sol in water or alc. Keep in well-closed containers to which a piece of ammonium carbonate has been added.
Melting point: mp 163-164°
CAUTION: This substance is reasonably anticipated to be a human carcinogen: Report on Carcinogens, Eleventh Edition (PB2005-104914, 2004) p III-73.
Use: As a reagent for separating Sn from Zn, and Cu and Fe from other metals. Ppts iron quantitatively from strongly acid soln; as a quantitative reagent for vanadates with which it gives a dark-red ppt sol in alkali soln, and for Ti with which it forms a yellow ppt; also suitable for the colorimetric estimation of Al.