Agent Name

Manganese(II) oxide

CAS Number

1344-43-0

Formula

Mn-O

Major Category

Metals

Synonyms

C.I. 77726; CI 77726; Cassel Green; Manganese Green; Manganese monooxide; Manganese monoxide; Manganese protoxide; Manganese(II) oxide, mon-; Manganosite; Manganous oxide; NU-Manese; Natural manganosite; Rosensthiel Green; [ChemIDplus]

Category

Manganese Compounds, Inorganic

Description

Green solid; [HSDB] Difficult to mix in water; [MSDSonline]

Sources/Uses

Used in textile printing, analytical chemistry, chemical manufacturing, ceramics, paints, colored glass, animal feeds, fertilizers, food additives, and dietary supplement; [HSDB] Used to make welding fluxes; Also used in ferrites, thermistors, and other electronic applications; [Ullmann]

Comments

A skin, eye, and respiratory tract irritant; Toxic by ingestion and inhalation; [MSDSonline] More readily assimilated by plants than manganese dioxide, thus its use as a fertilizer; [Ullmann] 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)

PEL (OSHA)

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

MAK

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

Adverse Effects
Neurotoxin

Parkinson's Syndrome

Links to Other NLM Databases
Health Studies

Human Health Effects from Hazardous Substances Data Bank:

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:

Activities

Activities with risk of exposure: