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1317-98-2

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Basic Information
CAS No.: 1317-98-2
Name: Valentinite (Sb2O3)
Article Data: 7
Molecular Structure:
Molecular Structure of 1317-98-2 (Valentinite (Sb2O3))
Formula: O3Sb2
Molecular Weight: 291.50
Synonyms: Valentinite(7CI,8CI)
Safety: Confirmed carcinogen. When heated to decomposition it emits toxic vapors of Sb.
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Chemistry

 Valentinite, its CAS number is 1317-98-2. The molecular formula of  Valentinite (CAS NO.1317-98-2 ) is O3Sb2. The molecular weight is 291.50 g/mol. And it is colorless, white, yellow, reddish or gray.

History

 Valentinite (CAS NO.1317-98-2 )  was first discovered near Allemont in France towards the end of the 18th century; the first description of its occurrence in the region of Pribram in Bohemia comes roughly from the same time. This particular locality at one time produced the very best crystals of this mineral. The largest crystals found there measured up to 3 cm.
Valentinite is a weathering product of antimony veins, where it forms as a seondary mineral through oxidation in the upper parts of the deposits. It forms columnar to needle-shaped crystals. A rich deposit of valentinite has been found only in one locality- the Constantine province of Algeria. This is the only deposit where it is mined as an ore, with 83% antimony. In all other locations it occurs in negligible quantities.

 

Consensus Reports

IARC Cancer Review: Group 2B IMEMDT    IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 47 ,1989,p. 291.(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 . 47 ,1989,p. 291.(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 Inadequate Evidence IMEMDT    IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 47 ,1989,p. 291.(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) .

Safety Profile

Confirmed carcinogen. When heated to decomposition, Valentinite (CAS NO.1317-98-2 ) emits toxic vapors of Sb.

Specification

Highly gem-like pearly luster, often fibrous oxide mineral.  Translucent to opaque in massive specimens.
Classification Code of Valentinite (CAS NO.1317-98-2 ) : Tumor data