Manganese sulfate monohydrate

Synonyms

Manganese sulfate; Manganese(2+) sulfate monohydrate; Manganese(II) sulfate monohydrate; Manganese sulfate hydrate; Manganese, monosulfate, monohydrate; Sulfuric acid, manganese(2+) salt (1:1) monohydrate; [ChemIDplus]

Category

Manganese Compounds, Inorganic

Description

Light red solid; Slightly efflorescent; [Merck Index] Pink hygroscopic solid; [ICSC] Light red hygroscopic powder; [Aldrich MSDS]

Sources/Uses

Used in dyes, boiling oils for varnishes, fertilizers (vines and tobacco), animal feeds (essential trace element), red glazes on porcelain, and medicines (prevention of perosis in poultry); [Merck Index] Used in paints, varnishes, textile dyes, fungicides, medications, ceramics, foods (nutrient and dietary supplement), ore flotation, and synthetic manganese dioxide; Also used as a catalyst (viscose process); [NTP]

Comments

No evidence of carcinogenicity in rats and equivocal evidence in mice in 2-year feeding studies; [NTP] Intermittent inhalation studies of rats produced changes in testicular weight (0.5 mg/m3 for 45 days) and degenerative changes to brain (0.01 mg/m3 for 13 weeks); [RTECS] May cause irritation; Targets lungs and nerves; [Aldrich MSDS] See "Manganese" and linked occupational diseases.

Biomedical References

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

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

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

Parkinsonism

Processes

Industrial Processes with risk of exposure:

• Farming (Feed Additives)
• Farming (Pesticides)
• Metal Extraction and Refining
• Painting (Pigments, Binders, and Biocides)
• Textiles (Printing, Dyeing, or Finishing)

Activities

Activities with risk of exposure:

• Ceramics making
• Enameling