Agent Name

Potassium perchlorate

CAS Number

7778-74-7

Formula

Cl-O4.K

Major Category

Other Classes

Synonyms

Astrumal; Irenal; Irenat; Perchloric acid, potassium salt (1:1); Peroidin; Potassium hyperchloride; KClO4; Spectrex Fire Extinguishant Formulation A; [ChemIDplus]

Category

Perchlorates

Description

Colorless crystals or white crystalline solid that absorbs moisture from the air; [CHEMINFO]

Sources/Uses

Used in explosives, fireworks, rocket propellants, life-support systems for generating oxygen, and photography; Used as an oxidizing agent and laboratory reagent; [CHEMINFO] Used to make airbags for automobiles; [Luttrell, p. 132]

Comments

Concentrated solutions are probably not irritating to the skin; May induce methemoglobinemia after ingestion; A strong oxidizer that is explosive when mixed with combustible materials releasing toxic gases including chlorine and hydrogen chloride; [CHEMINFO] Decomposes on heating to produce chlorine and chloroxides; [ICSC] See "PERCHLORATES."

Exposure Assessment
Vapor Pressure

2.07E-16 mm Hg

Adverse Effects
Methemoglobinemia

Methemoglobinemia, Secondary

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Toxicity Information

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Processes

Industrial Processes with risk of exposure: