Agent Name

Thorium nitrate

CAS Number

13823-29-5

Formula

H4-N4-O12.Th

Major Category

Physical/Radiation

Synonyms

Nitric acid, thorium(4+) salt; Thorium nitrate ((Th(NO3)4)); Thorium tetranitrate; Thorium(4+) nitrate; Thorium(IV), nitrate; UN2976; [ChemIDplus]

Category

Radioactive Compounds

Description

White crystalline material; [CAMEO]

Sources/Uses

Used as a chemical reagent; Used with 1% cerium nitrate to make mantles for lanterns; [Merck Index # 9376]

Comments

An alpha emitter with small beta and gamma emission; Toxic if ingested or inhaled; In fire, toxic oxides of nitrogen are produced. "Minimal radiation hazard in transport. No protective shielding for packages is required." [CAMEO] See "Thorium."

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