Agent Name

Zirconium hydroxide

CAS Number

14475-63-9

Formula

H4-O4-Zr

Major Category

Metals

Synonyms

Zirconium hydroxide (Zr(OH)4), (T-4)-; Zirconium tetrahydroxide; [ChemIDplus] Zirconium (IV) hydroxide; [MSDSonline] Hydrous zirconium oxide; [Ullmann]

Category

Metals, Inorganic Compounds

Description

White solid; [Merck Index]

Sources/Uses

Used in the pigment, dye, and glass industries; [Merck Index] Used in the production of zirconium oxide and zirconium sulfate; [Hawley] Used in sol-gel processes to make stabilized zirconias and stainless steel coatings; [Ullmann]

Comments

An irritant; [MSDSonline] See "Zirconium."

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

Search ChemIDplus

Related Information in HazMap
Processes

Industrial Processes with risk of exposure: