| Agent Name |
Manganese III oxide |
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| CAS Number |
1317-34-6 |
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| Formula |
Mn2-O3 |
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| Major Category |
Metals |
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| Synonyms |
Manganese sesquioxide; Dimanganese trioxide; Manganese manganate; Manganese sisquioxide; Manganese trioxide; Manganese(3+) oxide; Manganic oxide; [ChemIDplus] |
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| Category |
Metals, Inorganic Compounds |
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| Description |
Black solid, insoluble in water; [Merck Index] |
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| Sources/Uses |
Found in the mineral hausmannite; [Merck Index] Used to produce ceramic magnets and semiconductors; [Ullmann] |
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| Comments |
Fine dust is flammable; Toxic by inhalation; [Hawley] See "Manganese." |
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| Exposure Assessment |
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| TLV (ACGIH) |
0.2 mg/m3, as Mn |
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| PEL (OSHA) | Ceiling(OSHA)=5 mg/m3, as Mn |
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| MAK |
0.5 mg/m3, inhalable fraction, as Mn |
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| Explanatory Notes |
Decomposes at >900 deg C; [Ullmann] |
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| Adverse Effects |
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| Neurotoxin |
Parkinson's Syndrome |
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| Links to Other NLM Databases |
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