Zirconium silicide
Agent Name
Zirconium silicide
CAS Number
12039-90-6
Formula
Si2-Zr
Major Category
Metals
Synonyms
Zirconium disilicide; Zirconium silicide (ZrSi2); [ChemIDplus]
Category
Metals, Inorganic Compounds
Description
Grey odorless powder; [MSDSonline]
Comments
An eye irritant; "Prolonged inhalation may cause pulmonary fibrosis known as silicosis." [MSDSonline] "Silicosis is caused by inhalation of dust containing particles of crystalline silica in the respirable size range." Some non-crystalline forms of silica are relatively nontoxic. [APHA, p. 446] See "Zirconium." See "Calcium disilicide."
Biomedical References
Exposure Assessment
TLV (ACGIH)
5 mg/m3, as Zr
STEL (ACGIH)
10 mg/m3, as Zr
PEL (OSHA)
5 mg/m3, as Zr (compounds)
MAK
1 mg/m3, inhalable fraction (metal and insol. cmpds.)
IDLH (NIOSH)
25 mg/m3, as Zr
Diseases, Processes, and Activities Linked to This Agent
Other Information
No other related information on this agent was found.