Thorium oxide cas no:1314-20-1

NameThorium oxide
CAS1314-20-1
SynonymsThoria;Thorium dioxide;Thorium(IV) oxide;Thorotrast;Umbrathor;
EINECS(EC#)215-225-1
Molecular FormulaO₂Th
Molecular Weight264.00

Appearancewhite, crystalline powder

Hazard T,R
Risk R45
Safety

Confirmed human carcinogen producing angiosarcoma, liver and kidney tumors, lymphoma and other tumors of the blood system, and tumors at the application site. See also THORIUM.

Hazard CodesT,R
Risk Statements 45-23/24/25-33
R45: Thorium oxide (CAS NO.1314-20-1) may cause cancer. 
R23/24/25:Toxic by inhalation, in contact with skin and if swallowed. 
R33:Danger of cumulative effects.
Safety Statements 53-36/37/39-45
S53:Avoid exposure - obtain special instructions before use. 
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection. 
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
RIDADR UN 2910 7
RTECS XO6950000

Organism	Test Type	Route	Reported Dose (Normalized Dose)	Effect	Source
rat	LD50	intratracheal	> 1140mg/kg (1140mg/kg)		Environmental Quality and Safety, Supplement. Vol. 1, Pg. 1, 1975.