Agent Name

Silver permanganate

CAS Number

7783-98-4

Formula

Ag.H-Mn-O4

Major Category

Metals

Synonyms

Permanganic acid (HMnO4) silver(1+) salt; Silver manganate(VII); [Merck Index] UN1482

Category

Manganese Compounds, Inorganic

Description

Violet solid; Partially soluble in water (9 g/L at room temp.); [Merck Index] Gray powder; Soluble in water; [Alfa Aesar MSDS]

Sources/Uses

Used in gas masks and as a combustion catalyst for microelementary analysis; [Merck Index]

Comments

An oxidizer that may cause fire on contact with combustible materials; An eye irritant; [Alfa Aesar MSDS] Potassium permanganate crystals and concentrated solutions are corrosive (release potassium hydroxide when contact water); Permanganates can induce methemoglobinemia after ingestion; [Olson, p. 121] See "Silver." See "Manganese" and linked occupational diseases.

Exposure Assessment
TLV (ACGIH)

0.02 mg/m3, as Mn (respirable fraction), 0.1 mg/m3, as Mn (inhalable fraction), 0.01 mg/m3, as Ag

PEL (OSHA)

Ceiling(OSHA)=5 mg/m3, as Mn, 0,01 mg/m3, as Ag

MAK

0.2 mg/m3, as Mn (inhalable fraction), 0.02 mg/m3, as Mn (respirable fraction), 0.01 mg/m3, inhalable fraction, as Ag (salts)

Explanatory Notes

The Guide in the Emergency Response Guidebook is for "Permanganates, inorganic, n.o.s."

Adverse Effects
Neurotoxin

Parkinson's Syndrome

Methemoglobinemia

Methemoglobinemia, Secondary

Links to Other NLM Databases
Toxicity Information

Search TOXNET

Chemical Information

Search ChemIDplus

Related Information in HazMap
Diseases

Occupational diseases associated with exposure to this agent: