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Hexachloro-1,3-butadiene Structure

Hexachloro-1,3-butadiene

Chemical Properties

Melting point -19 °C
Boiling point 210-220 °C(lit.)
Density  1.68
vapor pressure  0.2 mm Hg ( 20 °C)
refractive index  n20/D 1.555(lit.)
Flash point 210-220°C
storage temp.  +4°C
solubility  Soluble in ethanol and ether (U.S. EPA, 1985)
form  liquid, clear
Odor faint turpentine odor
Water Solubility  (mg/L):
4.78 at 25 °C (shake flask-LSC, Banerjee et al., 1980)
4 at 20–25 °C (Geyer et al., 1980)
Merck  14,4678
BRN  1766570
Henry's Law Constant 3.55, 5.87, 6.90, 10.5, and 15.3 at 2.0, 6.0, 10.0, 18.0, and 25.0 °C, respectively (EPICS-SPME, Dewulf et al., 1999)
Exposure limits Potential occupational carcinogen. NIOSH REL: TWA 20 ppb (240 mg/m3); ACGIH TLV: TWA 0.02 ppm (adopted).
Dielectric constant 2.6(Ambient)
Stability Stable. Incompatible with rubber, oxidizing agents.
CAS DataBase Reference 87-68-3(CAS DataBase Reference)
IARC 3 (Vol. 73) 1999
EPA Substance Registry System Hexachlorobutadiene (87-68-3)

Safety Information

Hazard Codes  T,N,F
Risk Statements  24/25-34-40-50/53-39/23/24/25-23/24/25-11
Safety Statements  26-36/37/39-45-61-60-36/37-16-7
RIDADR  UN 2279 6.1/PG 3
WGK Germany  3
RTECS  EJ0700000
TSCA  Yes
HazardClass  6.1
PackingGroup  III
HS Code  29032990
Hazardous Substances Data 87-68-3(Hazardous Substances Data)
Toxicity LD50 in male, female mice, rats (mg/kg): 105, 76, 216, 175 i.p.; 80, 65, 250, 270 orally (Gradiski)

MSDS

Usage And Synthesis

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