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Product Name: Magnesium Sulfate Anhydrous
Chemical Formula: MgSO4
CAS Number: 7487-88-9
Synonyms: Anhydrous sulfate of magnesia, Epsom Salt (anhydrous)
Recommended Uses: Laboratory reagent, industrial chemical, agricultural supplement
Manufacturer/Supplier: Identified on shipping documentation
Emergency Contact: Local poison control center or emergency services
Address: Refer to packaging or order record
Telephone: Provided on Safety Data Sheet supplement or label instructions
GHS Classification: Not classified as hazardous under GHS
Pictogram: No symbol required
Signal Word: None
Hazard Statements: May cause mild eye or skin irritation
Precautionary Statements: Avoid contact with eyes and prolonged skin exposure
Physical Hazards: Dust may cause respiratory irritation
Potential Health Effects: Can aggravate existing respiratory conditions if inhaled in large amounts
Environmental Hazards: Large amounts may disrupt aquatic life if released into waterways
NFPA Ratings (scale 0-4): Health = 1, Flammability = 0, Reactivity = 0
OSHA Classification: Not regulated
Chemical Name: Magnesium Sulfate Anhydrous
Concentration: 98–100%
Chemical Formula: MgSO4
Impurities: Trace levels of calcium, potassium, sodium salts (less than 1%)
EC Number: 231-298-2
Molecular Weight: 120.37 g/mol
No hazardous components present in concentrations above cut-off limits
Inhalation: Move person to fresh air. Seek medical advice if symptoms persist.
Skin Contact: Wash area with soap and water. Remove contaminated clothing.
Eye Contact: Rinse eyes with water for several minutes. Remove contact lenses if present.
Ingestion: Rinse mouth with water. Drink water if conscious. Seek medical attention for discomfort.
Notes for Physicians: Treatment should be symptomatic and supportive. No known specific antidote.
Acute Symptoms: Cough, throat irritation, eye or skin discomfort
Delayed Effects: No delayed effects expected in normal uses
Special Precautions: Individuals with impaired renal function may be more susceptible if significant quantities are ingested.
Suitable Extinguishing Media: Water spray, dry chemical, foam, carbon dioxide
Unsuitable Extinguishing Media: No known unsuitable agents
Fire Hazards: Non-combustible. Decomposes with heat above 1124°F (607°C) to release sulfur oxides.
Firefighter Protection: Wear full protective gear and self-contained breathing apparatus.
Explosion Hazards: Material does not present an explosion risk.
Decomposition Products: Sulfur oxides, magnesium oxide
Special Information: Use equipment and tactics suitable for surrounding fire.
Personal Precautions: Avoid dust formation. Wear protective gloves, goggles, and suitable respiratory protection for dusty conditions.
Spill Cleanup Methods: Sweep up or vacuum dry powder. Place in labeled containers for disposal.
Environmental Precautions: Prevent large spills from entering drains, sewers, or waterways.
Methods for Containment: Use barriers to contain spillage. Dampen powder for easier handling.
Disposal of Collected Material: Dispose in accordance with local, regional, and national regulations.
Handling: Use with adequate ventilation. Avoid contact with eyes, skin, and clothing.
Hygiene Practices: Wash hands and exposed skin after handling. Do not eat, drink, or smoke in areas where material is handled.
Storage: Store in a cool, dry, well-ventilated area away from strong acids or oxidizers.
Package Integrity: Keep container tightly closed to avoid moisture absorption.
Incompatibilities: Strong acids and alkalies may react with the salt.
Storage Life: Keep dry to extend shelf life. Exposure to moisture compromises purity.
Occupational Exposure Limits: No established exposure limits for this material.
Engineering Controls: Use local exhaust if dust forms.
Personal Protective Equipment: Protective gloves, safety goggles, dust respirator for heavy dust exposure.
Body Protection: Wear laboratory coat or chemical-resistant coveralls.
Respiratory Protection: Approved particulate respirator in case of insufficient ventilation.
Environmental Exposure Controls: Minimize release to environment by employing good housekeeping.
Appearance: White or off-white crystalline powder
Odor: Odorless
pH (5% solution): 6.0–8.0
Melting Point: Decomposes above 1124°F (607°C)
Boiling Point: Not applicable
Solubility in Water: 28 g/100 mL at 20°C
Density: 2.66 g/cm³
Vapor Pressure: Negligible
Partition Coefficient (n-octanol/water): Not available
Evaporation Rate: Not applicable
Flash Point: Not flammable
Auto-ignition Temperature: Not applicable
Explosive Properties: None
Oxidizing Properties: None
Chemical Stability: Stable under recommended handling and storage conditions.
Reactivity: Reacts with strong acids to form magnesium salts and sulfuric acid.
Hazardous Reactions: No hazardous polymerization.
Conditions to Avoid: High humidity, direct contact with water, exposure to strong acids or bases.
Hazardous Decomposition Products: Sulfur oxides, magnesium oxide at high temperature.
Acute Toxicity: Low oral toxicity; LD50 (rat) > 2,000 mg/kg.
Skin Contact: May cause slight, temporary irritation.
Eye Contact: May produce mild transient irritation.
Inhalation: High concentrations of dust may cause throat or respiratory irritation.
Sensitization: Not a skin or respiratory sensitizer.
Chronic Effects: Not classified for chronic toxicity.
Carcinogenicity: Not listed as carcinogenic by IARC, NTP, OSHA.
Mutagenicity: No evidence found for genetic toxicity.
Reproductive Toxicity: No evidence for reproductive effects at normal exposure levels.
Target Organs: No specific target organs noted for occupational exposure levels.
Ecotoxicity: Large releases may alter water chemistry and disrupt aquatic organisms. LC50 (fish, 96 h): > 6,800 mg/L.
Persistence and Degradability: Rapidly dissociates and dilutes in water, not persistent.
Bioaccumulative Potential: Does not bioaccumulate.
Mobility in Soil: High solubility, migrates readily with water.
Other Adverse Effects: Potential to contribute to nutrient loading in sensitive ecosystems if chronically overapplied.
Disposal Methods: Dispose in accordance with federal, state, and local requirements. Waste may be permissible in landfill unless prohibited.
Unused Material: Reuse or recycle if possible. Avoid disposal in unauthorized locations.
Container Disposal: Ensure containers are empty before discarding. Remove labels if reusing or recycling.
Special Precautions: Prevent large amounts from entering drains or waterways.
UN Number: Not regulated
Shipping Name: Magnesium Sulfate Anhydrous
Hazard Class: Not hazardous for transport
Packing Group: None
Environmental Hazards: Not a marine pollutant
Transport Precautions: Protect containers from physical damage and moisture.
OSHA Status: Not regulated as a hazardous material
TSCA (US): Listed
EINECS (EU): Listed
SARA Title III: Not subject to reporting requirements
California Proposition 65: Not listed
WHMIS (Canada): Not controlled
REACH Status (EU): Exempt from registration
Other State and Local Requirements: Check for specific regional rules regarding use and disposal.
