Product Name: Asbestos, Amosite (CAS NO.12172-73-5)
Mol File: 12172-73-5.mol
Storage: Treasury ventilated low-temperature drying; separate storage and transportation of raw materials and food
Product Categories: Fibers/Asbestos
 Asbestos, Amosite (CAS NO.12172-73-5) is a mineral of the amphibole group of minerals with formula Fe₇Si₈O₂₂(OH)₂. It is the iron endmember of the grunerite-cummingtonite series. It forms as fibrous, columnar or massive aggregates of crystals. The crystals are monoclinic prismatic. The luster is glassy to pearly with colors ranging from green, brown to dark grey. The Mohs hardness is 5 to 6 and the specific gravity is 3.4 to 3.5.

 Asbestos, Amosite (CAS NO.12172-73-5) was discovered in 1853 and named for Louis Gruner, a Swiss-French chemist who first analysed it. Grunerite is also known commercially by the name amosite from the name Asbestos Mines Of South Africa (AMOSA).

NTP 10th Report on Carcinogens. IARC Cancer Review: Group 1 IMEMDT    IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 7 (1987),p. 106.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) ; Animal Sufficient Evidence IMEMDT    IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 2 (1973),p. 17.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) ; IMEMDT    IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 14 (1977),p. 11.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) ; Human Sufficient Evidence IMEMDT    IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 2 (1973),p. 17.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) ; IMEMDT    IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 14 (1977),p. 11.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) . NTP Carcinogenesis Studies (feed); No Evidence: hamster NTPTR*    National Toxicology Program Technical Report Series. (Research Triangle Park, NC 27709) No. NTP-TR-249,83 . . EPA Genetic Toxicology Program.

Confirmed human carcinogen with experimental carcinogenic, neoplastigenic, and tumorigenic data. Mutation data reported.
Analytical Methods: 
For occupational chemical analysis use NIOSH: Fibers, 7400; Asbestos Fibers, 7402.

OSHA PEL: TWA 2 million fibers/m³; CL 10 million fibers/m³; Cancer Hazard
ACGIH TLV: TWA 0.1 fibers/cc; Confirmed Human Carcinogen
DFG MAK: DFG TRK: (Fine dust particles that are able to reach the alveolar area of the lung) 1 × 10⁶ fibers/m³ (0.05 mg/m³), applicable when there is more than 2.5% asbestos in the dust
NIOSH REL: (asbestos): 0.1 fb/cc in a 400 L air sample

For occupational chemical analysis use NIOSH: Fibers, 7400; Asbestos Fibers, 7402.

 Asbestos, Amosite ,its CAS NO. is 12172-73-5,the synonyms is Amosite ; Amosite asbestos ; Brown asbestos ; CCRIS 354 ; Grunerite asbestos ; HSDB 2957 ; Mysorite ; NCI C60253A ; Asbestos, grunerite .