National Toxicology Program

National Toxicology Program
http://ntp.niehs.nih.gov/go/ts-10766-s

Testing Status of Tremolite - 10766-S

 

CASRN: 14567-73-8

Formula: Ca.4H2-O3-Si.5/2Mg

Synonyms/Common Names

  • Actinolite
  • Nonfibrous tremolite cleavage fragments

Known Uses

In acid-resisting applications, ceramics, and paint; formerly in cement pipe. Associated with tobacco: reported either as a natural component of tobacco, pyrolysis product (in tobacco smoke), or additive for one or more types of tobacco products.

Chemical Properties

Toxicity Effects (HSDB)

Long-Term Carcinogenicity

  • 2-Year (Dosed-Feed)  (C08991)  Report Complete 
    • TR-277 (NIH Number: 90-2531)  (Peer Review Approval 09/22/1982A )
      Toxicology and Carcinogenesis Studies of Tremolite (CASRN 14567-73-8) in F344/N Rats (Feed Studies)
    • Rats: F344/N
    • Carcinogenesis Results
      • Male Rats Negative 
      • Female Rats Negative 
    • Dose: 0, 1 %/250 PER GROUP.
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