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Product Name: Manganese Sulfate Monohydrate
Chemical Formula: MnSO4·H2O
Synonyms: Manganese(II) sulfate monohydrate
CAS Number: 10034-96-5
Recommended Uses: Manufacturing fertilizers, animal feed additives, ceramics, dyes, chemical synthesis
Supplier: Information found on the product label
Emergency Contact Number: Listed on the container or supplied SDS from manufacturer
GHS Classification: Acute toxicity (oral, category 4), Eye irritation (category 2A), Skin irritation (category 2), Specific target organ toxicity - repeated exposure (category 2, blood system, nervous system)
Signal Word: Warning
Hazard Statements: Harmful if swallowed, causes skin and eye irritation, may cause damage to organs through prolonged or repeated exposure
Precautionary Statements: Wash hands and exposed skin after handling, wear gloves and eye protection, do not breathe dust
Emergency Overview: White to pale pink powder, produces irritation on contact, ingestion may cause nausea and other health problems, inhalation of dust may affect the central nervous system
Chemical Name: Manganese Sulfate Monohydrate
Common Name: Manganese(II) sulfate monohydrate
Concentration: 98-100%
Impurities: Trace metals (may include iron, zinc); water of crystallization
Molecular Weight: 169.02 g/mol
Ingredient Classification: Hazardous
Inhalation: Move exposed person to fresh air, keep at rest, seek medical advice if symptoms develop (coughing, respiratory irritation)
Skin Contact: Remove contaminated clothing, flush skin with plenty of water and soap, seek medical attention for persistent irritation
Eye Contact: Rinse cautiously with water for several minutes, remove contacts if present and easy to do, seek medical attention for ongoing pain or redness
Ingestion: Rinse mouth, do not induce vomiting, give water to drink if conscious, seek medical help at once
Most Important Symptoms/Effects: Irritation of eyes, skin, and respiratory tract, headache, nausea, prolonged exposure can affect nervous system and blood
Notes for Physicians: Treat symptomatically, consider possible manganese poisoning in chronic cases
Suitable Extinguishing Media: Water spray, foam, dry chemical, carbon dioxide
Unsuitable Media: High pressure water streams may scatter material
Special Hazards: Substance does not burn, thermal decomposition may release toxic fumes (sulfur oxides, manganese oxides)
Personal Protection for Firefighters: Wear self-contained breathing apparatus and full protective clothing
Advice for Firefighters: Prevent runoff from entering drains, control contaminated firefighting water
Personal Precautions: Avoid dust formation, wear appropriate protective equipment such as gloves and eye protection, ventilate area
Environmental Precautions: Prevent spilled product from entering drains, surface water, or groundwater, avoid release to environment
Cleanup Methods: Scoop or shovel spilled material into suitable, labeled containers, sweep up and collect without raising dust, wash area with plenty of water
Disposal: Dispose of waste in accordance with local environmental regulations
Handling: Avoid breathing dust, wear protective clothing, keep away from incompatible materials, use proper industrial hygiene practices
Storage: Store in tightly sealed containers in a cool, dry, well-ventilated place, protect from moisture, keep away from strong acids and oxidizers
Other Precautions: Wash hands after handling, do not eat or drink in storage or work areas, label containers properly
Occupational Exposure Limits: OSHA PEL (as manganese, dust and compounds): 5 mg/m3 (ceiling), ACGIH TLV: 0.02 mg/m3 (respirable), 0.1 mg/m3 (inhalable)
Engineering Controls: Use local exhaust ventilation to minimize airborne levels, closed systems if possible
Personal Protective Equipment: Safety glasses with side shields, chemical-resistant gloves (PVC or nitrile), lab coat or coveralls, dust respirator (NIOSH-approved) in case of dust formation
Hygiene Measures: Keep contaminated clothing away from clean areas, wash hands thoroughly after use
Appearance: White to pale pink crystalline powder
Odor: Odorless
pH (1% solution): About 4.0 - 6.0
Melting Point: Decomposes
Boiling Point: Not applicable
Solubility: Highly soluble in water
Density: 2.95 g/cm3
Vapor Pressure: Negligible
Partition Coefficient (n-octanol/water): Not available
Evaporation Rate: Not applicable
Chemical Stability: Stable under recommended storage conditions
Reactivity: May react with strong acids to release sulfur dioxide
Possibility of Hazardous Reactions: Contact with strong oxidizing agents may cause violent reactions
Conditions to Avoid: Moisture, excessive heat, incompatible chemicals
Incompatible Materials: Strong acids, alkalis, oxidizers
Hazardous Decomposition Products: Manganese oxides, sulfur oxides
Acute Toxicity: Oral LD50 (rat): 2,150 mg/kg
Inhalation: May cause respiratory tract irritation, coughing, dizziness
Skin: May cause irritation, especially with prolonged exposure
Eyes: Causes redness, tearing, possible corneal injury
Chronic Effects: Long-term exposure linked to neurological disorders (manganism), anemia, reproductive toxicity
Sensitization: Not known to cause sensitization in humans
Carcinogenicity: Not classified as carcinogenic by IARC, NTP, OSHA
Aquatic Toxicity: Harmful to aquatic organisms at high concentrations, EC50 (Daphnia magna, 48 hrs): 4.9 mg/L
Persistence and Degradability: Inorganic material, not expected to biodegrade
Bioaccumulation Potential: Manganese can accumulate in aquatic organisms
Mobility in Soil: High solubility in water indicates movement through soil, possible leaching
Other Adverse Effects: Elevated manganese in water bodies can harm fish and amphibians, runoff from misuse in agriculture may contribute to environmental load
Waste Disposal Methods: Collect and reclaim or dispose at licensed hazardous waste facility, avoid unregulated dumping, follow all regional and national regulations for hazardous inorganic salts
Container Disposal: Empty containers should be triple-rinsed, punctured, and disposed of according to regulations
Ecological Precautions: Do not discharge to surface water, sewer system, or soil
UN Number: Not regulated for transport under UN recommendations
Proper Shipping Name: Manganese Sulfate Monohydrate
Transport Hazard Class: Not classified as dangerous goods by ADR/RID, IMO, or IATA
Packing Group: Not regulated
Special Precautions for User: Secure containers, prevent spillage and dust generation, label packages with proper chemical identification
International Inventories: Listed on TSCA (USA), EINECS/ELINCS (EU), DSL (Canada), AICS (Australia), ENCS (Japan)
OSHA: Regulated as a hazardous substance in workplace
SARA Title III: Subject to Section 313 reporting requirements (manganese compounds)
EPA: Listed as hazardous substance under CERCLA
EU Classification: Harmful (Xn), Risk phrases R20/22 (harmful by inhalation and swallowing), Safety phrases S22, S24/25
WHMIS Classification: D2A (very toxic), D2B (toxic)
