Basic information Safety Related Supplier
2,3,7,8-TETRACHLORODIBENZO-P-DIOXIN Structure

2,3,7,8-TETRACHLORODIBENZO-P-DIOXIN

Chemical Properties

Melting point 284-287°C
Boiling point 407.62°C (rough estimate)
Density  1.6430 (estimate)
vapor pressure  340 at 25 °C (Rodorf, 1985)
refractive index  1.6430 (estimate)
Flash point 4 °C
storage temp.  Refrigerator
solubility  Chloroform: Slightly soluble
form  Colorless solids or crystals
color  Colorless to white needles
Water Solubility  0.0193ug/L(22 ºC)
Henry's Law Constant 5.40 at 20 °C (approximate - calculated from water solubility and vapor pressure)
Exposure limits An IDLH of 1 ppb was recommended by Schroy et al. (1985).
CAS DataBase Reference 1746-01-6(CAS DataBase Reference)
IARC 1 (Vol. Sup 7, 69, 100F) 2012
EPA Substance Registry System 2,3,7,8-Tetrachlorodibenzo-p-dioxin (1746-01-6)

Safety Information

Hazard Codes  F,Xn
Risk Statements  11-38-48/20-63-65-67
Safety Statements  36/37-62-46
RIDADR  2811
WGK Germany  3
HazardClass  6.1(a)
PackingGroup  I
Hazardous Substances Data 1746-01-6(Hazardous Substances Data)
Toxicity LD50 in male, female rats (mg/kg): 0.022, 0.045 orally (Schwetz)

Usage And Synthesis