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2-chloro-1,3-butadiene Structure

2-chloro-1,3-butadiene

Chemical Properties

Melting point -130°C
Boiling point 59.45°C
Density  0,958 g/cm3
vapor pressure  118 at 10 °C, 200 at 20 °C, 275 at 30 °C (quoted, Verschueren, 1983)
refractive index  1.4583
Flash point 11 °C
storage temp.  2-8°C
solubility  Soluble in acetone, benzene, and ether (Weast, 1986)
form  Colorless liquid
Water Solubility  256mg/L at 20℃
Henry's Law Constant 3.20 x 10-2 atm?m3/mol using method of Hine and Mookerjee (1975)
Exposure limits Potential occupational carcinogen. NIOSH REL: 15-min ceiling 1 ppm (3.6 mg/m3), IDLH 300 ppm; OSHA PEL: TWA 25 ppm (90 mg/m3); ACGIH TLV: TWA 10 ppm (adopted).
LogP 2.525 at 20℃
Indirect Additives used in Food Contact Substances CHLOROPRENE
FDA 21 CFR 175.105
CAS DataBase Reference 126-99-8(CAS DataBase Reference)
FDA UNII 42L93DWV3A
Proposition 65 List Chloroprene
IARC 2B (Vol. Sup 7, 71) 1999
EPA Substance Registry System Chloroprene (126-99-8)

Safety

Symbol(GHS)
Signal wordDanger
Hazard statements H225-H301+H311+H331-H350-H370
Precautionary statements P201-P210-P260-P280-P301+P310-P311
Hazard Codes  F,T
Risk Statements  10-20/22-36-48/20-36/37/38-11-45-39/23/24/25-23/24/25
Safety Statements  16-45-53-36/37-7
RIDADR  1993
WGK Germany  3
HazardClass  3.1
PackingGroup  I
Hazardous Substances Data 126-99-8(Hazardous Substances Data)
Toxicity Acute oral LD50 for mice 260 mg/kg, rats 900 mg/kg (quoted, RTECS, 1985).
IDLA 300 ppm
NFPA 704:
3
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