Skip directly to search Skip directly to A to Z list Skip directly to navigation Skip directly to page options Skip directly to site content

Registry of Toxic Effects of Chemical Substances (RTECS)

Thorium

RTECS #

XO6400000

CAS #

7440-29-1

Updated

February 2008

Molecular Weight

232.04

Molecular Formula

Th

Synonyms

Other Multiple Dose Data and References

Route/OrganismDoseEffectReference
inhalation/mammal (species unspecified) lowest published toxic concentration: 10 mg/m3/60D- intermittentBlood: Changes in cell count (unspecified)

Blood: Changes in bone marrow not included in above
VCVN1* -,265,1988

Reviews

OrganizationStandardReference
TOXICOLOGY REVIEWENTOX* -,183,2005

Standards and Regulations

OrganizationStandardReference
Occupational Exposure Limit-RUSSIAshort term exposure limit 0.05 mg/m3, JUN2003

Status in Federal Agencies

OrganizationReference
ATSDR TOXICOLOGY PROFILE (NTIS** PB/91/180448/AS)
TOP