Agent Name

Potassium permanganate

CAS Number

7722-64-7

Formula

Mn-O4.K

Major Category

Other Classes

Synonyms

Algae-K; Argucide; Cairox; Chameleon mineral; Condy's crystals; Diversey Diversol CX with Arodyne; Diversey Diversol CXU; Insta-perm; Kaliumpermanganat [German]; Manganese potassium oxide (KMnO4); Permanganate de potassium [French]; Permanganate of potash; Permanganato potasico [Spanish]; Potassio (permanganato di) [Italian]; Potassium (permanganate de) [French]; Pure Light E 2; Solo San Soo; Walko Tablets; UN1490; [ChemIDplus]

Category

Inorganic Oxidizing Agents

Description

Purple odorless crystals; [HSDB]

Sources/Uses

Used to bleach textile fibers and skins, to dye wood and fabrics, to etch rubber and plastics, and to descale steel; Used in food processing, photography, leather tanning, and water purification; Used as an antiseptic, disinfectant, insecticide, miticide, and algaecide; [HSDB]

Comments

Dilute solutions are irritants and concentrated solutions caustic to the skin, eyes, and respiratory tract. Toxic by ingestion--gastrointestinal burns, methemoglobinemia, and injury to liver and kidneys; [HSDB] If not flushed with water, can burn skin and stain it dark brown; [CHRIS] Inhalation of high concentrations of dust or mist may cause pulmonary edema in extreme exposures; May cause liver and kidney damage after ingestion; Lethal dose is about 10 grams; May cause manganese poisoning after chronic ingestion or inhalation; [CHEMINFO] Permanganate crystals and concentrated solutions are corrosive (release potassium hydroxide when contact water) and can induce methemoglobinemia after ingestion; [Olson, p. 121] See "Manganese" and linked occupational diseases.

Exposure Assessment
Bioaccumulates

Yes

TLV (ACGIH)

0.02 mg/m3, as Mn (respirable fraction), 0.1 mg/m3, as Mn (inhalable fraction)

PEL (OSHA)

Ceiling(OSHA)=5 mg/m3, as Mn

MAK

0.2 mg/m3

Vapor Pressure

2.32E-20 mm Hg

Explanatory Notes

For occupational exposure limits, see "Manganese";

Adverse Effects
Toxic Pneumonitis

Yes

Neurotoxin

Parkinson's Syndrome

Hepatotoxin

Hepatotoxin, Secondary

Methemoglobinemia

Methemoglobinemia, Secondary

Anemia

Anemia, Hemolytic

Dermatotoxin

Skin Burns

Links to Other NLM Databases
Health Studies

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Toxicity Information

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Chemical Information

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Related Information in HazMap
Diseases

Occupational diseases associated with exposure to this agent:

Processes

Industrial Processes with risk of exposure: