Silver permanganate

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 (greater than1:5000 strength) are corrosive (release potassium hydroxide when contact water); Permanganates can induce methemoglobinemia after ingestion; [Olson, p. 133] See "Silver." See "Manganese" and linked occupational diseases.

Biomedical References

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

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

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."

MetHgb is secondary toxic effect

Parkinsonism

Diseases

Occupational diseases associated with exposure to this agent:

• Manganese, chronic toxic effect