Agent Name

Sodium phosphotungstate

CAS Number

51312-42-6

Major Category

Metals

Synonyms

Phosphotungstic acid, sodium salt; Sodium tungsten hydroxide oxide phosphate; Sodium tungstophosphate; Tungstophosphoric acid, sodium salt; [ChemIDplus]

Category

Metals, Inorganic Compounds

Description

White solid; Soluble in water; [Merck Index] White crystalline solid; [Sigma-Aldrich MSDS]

Sources/Uses

Used as a reagent for alkaloids, uric acid, and potassium; [Merck Index]

Comments

Causes somnolence and muscle weakness in oral lethal-dose studies of mice and rats; [RTECS] A skin and strong eye irritant; Harmful by ingestion; [Sigma-Aldrich MSDS] See "Sodium tungstate."

Exposure Assessment
TLV (ACGIH)

3 mg/m3, as W, respirable particulate matter

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