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CAS No 12068-69-8 , dibismuth

  • Name: dibismuth
  • Synonyms: AC1L4YDN;dibismuth;selenium(2-); Bismuth selenide (Bi2Se3); bismuth(3+) selenide(2:3);dibismuth selenium(2-); dibismuth(3+) ion triselenide;
  • CAS Registry Number:
  • Transport: UN 3283 6.1/PG 3
  • Flash Point: °C
  • Boiling Point: °Cat760mmHg
  • Density: 6.82 g/mL at 25 ºC(lit.)
  • Safety Statements: 20/21-28-45-60-61
  • Hazard Symbols: T: Toxic;N: Dangerous for the environment;
  • Flash Point: °C
  • EINECS: 235-104-7
  • Molecular Weight: 654.8408
  • InchiKey: FBGGJHZVZAAUKJ-UHFFFAOYSA-N
  • InChI: InChI=1S/2Bi.3Se/q2*+3;3*-2
  • Risk Statements: 23/25-33-50/53
  • Molecular Formula: Bi2Se3
  • Molecular Structure:CAS No:12068-69-8 dibismuth

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References of dibismuth
Title: Bismuth Selenide
CAS Registry Number: 12068-69-8
Synonyms: Bismuth triselenide
Molecular Formula: Bi2Se3
Molecular Weight: 654.84
Percent Composition: Bi 63.83%, Se 36.17%
Literature References: Prepn by heating a stoichiometric mixture at 475° in evacuated tube: D?nges, Z. Anorg. Allg. Chem. 265, 56 (1951); Konorov, Zh. Tekh. Fiz. 26, 1394 (1956); from BiO, Se and sodium oxalate at high press.: Cambi, Elli, Chim. Ind. (Milan) 50, 94 (1968).
Properties: Black crystals. Rhombohedral and hexagonal crystal structure. d420 7.70 (also reported as 6.82). mp 710°. Heat of formation: -13.9 kcal/mol. Heat of combustion: 296.4 kcal/mol. Dec when heated in air. Dec by concd nitric acid and aqua regia. Insol in water.
Melting point: mp 710°
Density: d420 7.70 (also reported as 6.82)
Use: In semiconductor research.