Agent Name

Sodium molybdate(VI)

CAS Number

7631-95-0

Formula

Mo-O4.2Na

Major Category

Metals

Synonyms

Molybdate (MoO42-), disodium, (beta-4)-; Molybdate (MoO42-), disodium, (T-4)-; Molybdate (MoO42-), sodium (1:2), (T-4)-; Disodium molybdate; Molybdic acid, disodium salt; Natriummolybdat [German]; Sodium molybdate; [ChemIDplus] MOLYBDATE DE SODIUM; [IUCLID]

Category

Metals, Inorganic Compounds

Description

White solid; [ICSC] Colorless crystalline solid; [Sigma-Aldrich MSDS]

Sources/Uses

Used to make pigments; Also used as a corrosion inhibitor, bath additive for finishing metals, reagent for alkaloids, and micronutrient; [Merck Index] Permitted for use as an inert ingredient in non-food pesticide products; [EPA]

Comments

No developmental toxicity reported in 1972 study of hamsters; Molybdenum accumulation in reproductive tissues and histopathological testicular changes observed in male rats exposed to high doses for 60 days; [REPROTOX] Oral LD50 (rat) = 250 mg/kg also reported; Causes fatty liver degeneration, and changes in renal tubules in oral lethal-dose studies of dogs, guinea pigs, and rats; Causes abnormal liver function tests, kidney changes, weight loss, normocytic anemia, and other musculoskeletal changes in oral studies of rats; [RTECS] Aerosol causes eye and respiratory tract irritation; Chronic exposure may have effects on the respiratory tract; Possible human carcinogen; [ICSC] A skin and strong eye irritant; Toxic by inhalation; [Sigma-Aldrich MSDS] See "Molybdenum."

Exposure Assessment
TLV (ACGIH)

0.5 mg/m3, as Mo, respirable fraction

PEL (OSHA)

5 mg/m3, as Mo

IDLH (NIOSH)

1000 mg/m3, as Mo

Lethal Concentration

LC50 (rat) > 2,080 mg/m3/4hr

Adverse Effects
Hepatotoxin

Hepatotoxin, Secondary

Links to Other NLM Databases
Toxicity Information

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Chemical Information

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Related Information in HazMap
Processes

Industrial Processes with risk of exposure: