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."

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

Links to Other NLM Databases
Toxicity Information

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Chemical Information

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Related Information in HazMap
Other Information

No other related information on this agent was found.