Agent Name

Yttrium oxide

CAS Number

1314-36-9

Formula

O3-Y2

Major Category

Metals

Synonyms

Diyttrium trioxide; YO 3-245; Yttria; Yttrium oxide (Y2O3); Yttrium sesquioxide; Yttrium(3+) oxide; [ChemIDplus]

Category

Rare Earth Metals

Description

White solid insoluble in water; [Sax]

Sources/Uses

Used in an alloy with europium for color TV phosphors, in yttrium-iron garnets for microwave filters, and in refractories with zirconia and silicon nitride; [Hawley]

Comments

By the intraperitoneal route, it is a poison. [Sax] A skin irritant; [MSDSonline] See "Yttrium." See "RARE EARTH METALS" and linked occupational diseases.

Exposure Assessment
TLV (ACGIH)

1 mg/m3, as Y

PEL (OSHA)

1 mg/m3, as Y

Explanatory Notes

mp = 2410 deg C; [Sax]

Adverse Effects
Fibrogenic

Yes

Links to Other NLM Databases
Health Studies

Human Health Effects from Hazardous Substances Data Bank:

Toxicity Information

Search TOXNET

Chemical Information

Search ChemIDplus

Related Information in HazMap
Other Information

No other related information on this agent was found.