Manganese Sulfate Safety Data Sheet (SDS): Key Information and Handling Guidelines

Manganese sulfate (MnSO₄·H₂O) is a crystalline compound widely used in fertilizers, animal feed, and battery production. To ensure safe use, industries rely on the Safety Data Sheet (SDS), which provides hazard identification, protective measures, and emergency procedures.

and you can download our manganese sulfate safety data sheet at the end of our blog

An SDS is a standardized document required under regulations such as OSHA (Occupational Safety and Health Administration) in the United States and REACH (Registration, Evaluation, Authorisation and Restriction of Chemicals) in the European Union.

For manganese sulfate, the SDS is critical because:

• It provides hazard identification for workers in agriculture, chemical plants, and laboratories.

• It ensures compliance with safety and environmental regulations.

• It helps organizations train employees on proper handling and emergency response.

Hazard Identification

• GHS Classification:

  • Specific target organ toxicity (repeated exposure), Category 2

  • Eye damage, Category 1

  • Chronic aquatic toxicity, Category 2

• Signal Word: Warning

• Hazard Statements:

  • May cause damage to organs through prolonged or repeated exposure

  • Causes serious eye damage

  • Toxic to aquatic life with long-lasting effects

• Precautionary Measures:

  • Avoid breathing dust or vapors

  • Wear protective gloves and eye/face protection

  • Do not eat, drink, or smoke while handling

  • Prevent release to the environment

  • Store locked up and dispose of material properly

Composition and Ingredients

• Substance: Manganese (II) sulfate monohydrate

• CAS Number: 10034-96-5

• Purity: 95–100%

First Aid Measures

• Inhalation: Move to fresh air, clean nasal cavity with water, and seek medical attention if irritation persists.

• Skin Contact: Remove contaminated clothing and wash skin with mild soap and water.

• Eye Contact: Rinse with water for several minutes, remove contact lenses if present, and continue rinsing.

• Ingestion: Rinse mouth, do not induce vomiting, and seek emergency medical help.

• Possible Symptoms: Chills, fever, nausea, vomiting, coughing, weakness, headaches, and skin irritation

Firefighting Measures

• Extinguishing Media: Foam, dry powder, CO₂, water spray, or sand.

• Special Instructions: Use water spray to cool containers and prevent contaminated water from entering drains.

• Protective Gear: Firefighters should wear NIOSH-approved respiratory protection and protective clothing

Accidental Release Measures

• Personal Protection: Use gloves, goggles, and avoid creating dust.

• Environmental Protection: Prevent release into drains or groundwater.

• Cleanup Methods: Sweep up and place in appropriate containers for disposal or recycling

Handling and Storage

• Handling:

  • Wash hands after use and before eating or smoking.

  • Provide proper ventilation to avoid dust accumulation.

  • Avoid breathing in particles.

• Storage:

  • Keep in a cool, dry, and ventilated location.

  • Store away from foodstuffs.

  • Protect from moisture

Exposure Controls and PPE

• Exposure Limits:

  • ACGIH TWA: 0.2 mg/m³

  • OSHA PEL (Ceiling): 5 mg/m³

• Engineering Controls:

  • Install eyewash stations and safety showers near work areas.

  • Ensure good ventilation.

• Personal Protection:

  • Respiratory: Use appropriate masks if ventilation is inadequate.

  • Eyes: Safety goggles or face shields.

  • Hands: Protective gloves.

  • Other: Avoid unnecessary exposure

Physical and Chemical Properties

• Form: Granular powder

• Color: White or pale pink

• Melting Point: 700 °C

• Solubility: Soluble in water

• Density: 2.95 g/cm³

Stability and Reactivity

• Stability: Stable under normal storage conditions.

• Hazardous Decomposition: Sulfur oxides and manganese oxides may form under fire conditions.

• Incompatibilities: Strong oxidizing agents and moisture

Toxicological Information

• Oral LD₅₀ (rat): 2150 mg/kg

• Health Effects:

  • Eye: Causes severe irritation or damage

  • Skin: May cause irritation

  • Inhalation: May irritate respiratory tract

  • Ingestion: Harmful if swallowed

No evidence suggests manganese sulfate is carcinogenic at levels ≥0.1%

Ecological Information

• Ecotoxicity: Toxic to aquatic organisms, with potential long-term effects.

• Environmental Impact: Should not be released into soil or water systems

Disposal Considerations

Dispose of manganese sulfate in accordance with local, state, and federal regulations. Do not allow material to contaminate water sources

Transport Information

• DOT (U.S.): Not regulated.

• IMDG (Maritime): UN 3077, Class 9, Marine pollutant.

• IATA (Air): UN 3077, Class 9

Regulatory Information

• Not listed under major U.S. hazardous substance regulations such as CERCLA or OSHA regulated substances.

• Not classified as an extremely hazardous substance under SARA Title III

1. First Aid Measures

2. Personal Protective Equipment (PPE)

3. Hazard Classification

4. Transport Information

• Always wash hands before eating or drinking.

• Provide ventilation to avoid dust buildup.

• Store in a cool, dry location away from foodstuffs.

• Avoid exposure to moisture.

By following the guidance in the SDS and applying proper protective measures, manganese sulfate can be handled safely in agriculture, industry, and research. Tables like those above allow workers and safety officers to access critical information quickly and effectively.

If you are sourcing high-quality manganese sulfate with full SDS support, ensure that your supplier provides updated documentation for compliance and workplace safety.

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