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CAS No 540-49-8 , Ethene, 1,2-dibromo- Search by region : Japan

  • Name: Ethene, 1,2-dibromo-
  • Synonyms: 1,2-Dibromoethene; 1,2-Dibromoethylene;Ethene, 1,2-dibromo-; Acetylene dibromide; NSC 8744;Ethylene,1,2-dibromo- (6CI,8CI); 2-Bromovinylbromide; sym-Dibromoethylene;
  • CAS Registry Number:
  • Transport: UN 2810 6
  • Flash Point: °C
  • Refractive index: n 20/D 1.542
  • Safety Statements: 26-36/37/39-45
  • Hazard Symbols: T: Toxic;
  • Flash Point: °C
  • EINECS: 208-747-6
  • Molecular Weight: 185.86
  • InChI: InChI=1/2C2H2.2BrH/c2*1-2;;/h2*1-2H;2*1H/p-2
  • Risk Statements: 25-36/37/38
  • Molecular Formula: C2H2 Br2
  • Molecular Structure:CAS No:540-49-8 Ethene, 1,2-dibromo-

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References of Ethene, 1,2-dibromo-
Title: Acetylene Dibromide
CAS Registry Number: 540-49-8
CAS Name: 1,2-Dibromoethene
Synonyms: 1,2-dibromoethylene; sym-dibromoethylene
Molecular Formula: C2H2Br2
Molecular Weight: 185.85
Percent Composition: C 12.93%, H 1.08%, Br 85.99%
Line Formula: BrCH=CHBr
Literature References: Prepd by reaction of tetrabromoethylene with Zn and alc followed by sepn of cis- and trans-forms by fractional distillation: Noyes et al., J. Am. Chem. Soc. 72, 33 (1950).
Properties: Liquid, gradually decomposed by air, moisture, or light. d417 2.21. nD20 1.5428. Practically insol in water. Sol in many organic solvents.
Index of refraction: nD20 1.5428
Density: d417 2.21
 
Derivative Type: cis-Form
Properties: nD25 1.5370.
Index of refraction: nD25 1.5370
 
Derivative Type: trans-Form
Properties: nD25 1.5440.
Index of refraction: nD25 1.5440
 
CAUTION: Narcotic in high concns.