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CAS No 1303-33-9 , Arsenic sulfide (As2S3) Search by region : Germany

  • Name: Arsenic sulfide (As2S3)
  • Synonyms: ARSENIC TRISULFIDE; PRACT;Arsenic(III) sulfide;Arsenic sulfide (As2S3);
  • CAS Registry Number:
  • Transport: UN 1557 6.1/PG 2
  • Melting Point: 300 °C(lit.)
  • Flash Point: °C
  • Boiling Point: 707 °C
  • Density: g/cm3
  • Safety Statements: Confirmed human carcinogen with experimental tumorigenic data. A poison. Reacts violently with H2O2, (KNO3 + S). When heated to decomposition or on contact with acid or acid fumes it emits highly toxic fumes of SO2, H2S, and As. Reacts with water or steam to emit toxic and flammable vapors.
  • Hazard Symbols: T: Toxic;N: Dangerous for the environment;
  • Flash Point: °C
  • EINECS: 215-117-4
  • Molecular Weight: 492.0764
  • InchiKey: OUFDYFBZNDIAPD-UHFFFAOYSA-N
  • InChI: InChI=1S/As4S6/c5-1-6-3-8-2(5)9-4(7-1)10-3
  • Risk Statements: 23/25-50/53
  • Molecular Formula: As4S6
  • Molecular Structure:CAS No:1303-33-9 Arsenic sulfide (As2S3)

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References of Arsenic sulfide (As2S3)
Title: Arsenic Trisulfide
CAS Registry Number: 1303-33-9
Synonyms: Yellow arsenic sulfide; orpiment; auripigment; arsenic yellow; king's yellow; king's gold
Molecular Formula: As2S3
Molecular Weight: 246.04
Percent Composition: As 60.90%, S 39.10%
Literature References: The article of commerce contains much less sulfur than theory. Prepn: Gmelins, Arsenic (8th ed.) 17, pp 422-433 (1952).
Properties: Yellow or orange powder. mp reported from 300 to 325°. d 3.46. Practically insol in water. Sol in alkalies, alkali sulfides or carbonates; slowly sol in hot HCl; dec by HNO3.
Melting point: mp reported from 300 to 325°
Density: d 3.46
Use: Manuf of glass, particularly infrared-transmitting glass; manuf of oil cloth, linoleum; in electrical semiconductors, photoconductors; as pigment; for depilating hides; in pyrotechnics.