Agent Name

Ammonium diuranate

CAS Number

7783-22-4

Formula

H8-N2.O7-U2

Major Category

Physical/Radiation

Synonyms

Incorrectly called "uranium yellow"; Sodium uranate is the true uranium yellow; [Merck Index #565] Ammonium uranate(VI); Ammonium uranate; Diammonium diuranate; Diammonium diuranium pentaoxide; Yellowcake; [ChemIDplus]

Category

Radioactive Compounds

Description

Red-yellow powder soluble in acids and ammonium carbonate solution; [Merck Index #565]

Sources/Uses

Used as a black pigment to paint porcelain; Also used as a chemical reagent for alkaloids and in the production of UO2 and UF4; [Merck Index #565]

Comments

See "Uranium" and linked occupational diseases.

Exposure Assessment
BEI

Uranium in urine = 200 ug/L at end of shift; [ACGIH]

TLV (ACGIH)

0.2 mg/m3, as U

STEL (ACGIH)

0.6 mg/m3, as U

PEL (OSHA)

0.05 mg/m3, as U (sol), 0.25 mg/m3, as U (insol)

IDLH (NIOSH)

10 mg/m3, as U

Explanatory Notes

Practically insoluble in water; [Merck Index]

Links to Other NLM Databases
Health Studies

Human Health Effects from Hazardous Substances Data Bank:

Toxicity Information

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Chemical Information

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Biomedical References

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Related Information in HazMap
Processes

Industrial Processes with risk of exposure: