Agent Name

Barium hydroxide

CAS Number

17194-00-2

Formula

Ba-H2-O2

Major Category

Metals

Synonyms

Barium hydroxide (Ba(OH)2); Barium dihydroxide; Barium hydroxide lime; Caustic baryta; [ChemIDplus] UN1564

Category

Metals, Inorganic Compounds

Description

White solid; [HSDB] Fine white crystals; Soluble in water; [MSDSonline]

Sources/Uses

Used as a vulcanizing agent (synthetic rubber), corrosion inhibitor, drilling fluid additive, boiler scale remedy; motor oil additive, plastics stabilizer, pigment dispersant, and papermaking additive; Also used to refine animal and vegetable oils, to soften water; to protect limestone objects from deterioration, and to manufacture alkali and glass; [HSDB]

Comments

Aqueous solutions may cause severe burns to eyes and skin irritation; [HSDB] A corrosive substance that can cause injury to the skin, eyes, and respiratory tract; Inhalation may cause chemical pneumonitis and pulmonary edema; [MSDSonline] See "Barium."

Exposure Assessment
TLV (ACGIH)

0.5 mg/m3, as Ba

PEL (OSHA)

0.5 mg/m3, as Ba

MAK

0.5 mg/m3, as Ba, inhalable fraction(soluble compds)

IDLH (NIOSH)

50 mg/m3, as Ba

Explanatory Notes

The Guide in the Emergency Response Guidebook is for "Barium compound, n.o.s."

Adverse Effects
Toxic Pneumonitis

Yes

Dermatotoxin

Skin Burns

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
Processes

Industrial Processes with risk of exposure: