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Product Name: Anhydrous Magnesium Sulfate
Chemical Formula: MgSO4
CAS Number: 7487-88-9
Synonyms: Magnesium Sulfate, Dried; Epsom Salt, Anhydrous Magnesium Sulphate
Recommended Use: Laboratory reagent, drying agent, chemical manufacturing, agriculture
Manufacturer Details: Available on product packaging; refer to supplier for contact details and technical information lines
Emergency Contact: Refer to local regulations or emergency health response numbers for chemical exposure or incidents involving magnesium sulfate
Classification: Not classified as hazardous according to OSHA, GHS, or EU CLP
Label Elements: None required under standard chemical regulations
Signal Word: None
Hazard Statements: Large quantities may cause gastrointestinal upset; dust may irritate eyes, skin, or respiratory system
Precautionary Measures: Avoid inhalation of dust, avoid contact with eyes and skin, wash hands after handling
Hazard Pictogram: None mandated for anhydrous form
Other Hazards: Nuisance dust may trigger mechanical irritation, possible slight aquatic toxicity with excessive release
Chemical Name: Magnesium Sulfate
Common Name: Anhydrous magnesium sulfate
Percentage: 100% by weight
Impurities: Product purity typically exceeds 99%, minor trace impurities depend on supplier
Molecular Weight: 120.37 g/mol
Additional Ingredients: No additives; no known substances contributing to additional hazards
General Advice: Remove affected individual from exposure to fresh air or safe environment
Inhalation: Move person to fresh air, seek medical attention if respiratory symptoms develop and persist
Eye Contact: Flush eyes with plenty of running water for several minutes, remove contact lenses, seek medical help if irritation persists
Skin Contact: Wash off thoroughly with soap and water, remove contaminated clothing, seek medical attention if irritation continues
Ingestion: Rinse mouth with water, do not induce vomiting unless directed by medical personnel, seek advice for large ingestions
Most Important Symptoms: May cause mild gastrointestinal upset or skin irritation after prolonged exposure; respiratory irritation possible in poorly ventilated locations
Suitable Extinguishing Media: Use water, carbon dioxide, dry chemical or foam
Specific Hazards: Non-flammable, does not support combustion; product can emit sulfur oxides on thermal decomposition at high temperatures
Protective Equipment: Firefighters should wear standard protective gear and self-contained breathing apparatus
Special Procedures: Cool containers with water spray if exposed to fire, prevent runoff into drains and waterways
Hazardous Combustion Products: Magnesium oxide, sulfur oxides produced under extreme fire conditions
Personal Precautions: Avoid generation of dust, use personal protective equipment such as gloves, goggles, respirators as appropriate
Environmental Precautions: Prevent dust or solution discharge into surface water, soil, or sewers
Clean Up Methods: Collect spilled material with shovel or dustpan, sweep thoroughly, avoid water to prevent solution formation, place in properly labeled disposal or recovery container; ventilate area
Recommended Tools: Plastic or stainless-steel shovel, industrial sweepers in large incidents
Waste Disposal: Follow state, local, or national regulations for non-hazardous inorganic salts; do not flush large quantities
Safe Handling Recommendations: Avoid prolonged or repeated exposure to dust, use local exhaust ventilation; minimize dust creation; wear safety glasses and gloves
Technical Precautions: Use in well-ventilated areas; keep away from strong acids or bases which may trigger unwanted reactions
Storage Conditions: Store in cool, dry, tightly closed containers; protect from moisture since product is highly hygroscopic; avoid heat sources
Incompatible Materials: Strong oxidizers, acids, water or humid environments
Packaging: Use appropriate containers made of HDPE, glass, stainless steel, or original manufacturer packaging
Exposure Limits: No OSHA PEL or ACGIH TLV set; general nuisance dust limit is 10 mg/m3 for total particulates (inhalable); follow local recommendations
Engineering Controls: Use local exhaust, general ventilation, or dust extraction systems for processes generating airborne powder
Personal Protection: Wear chemical safety goggles or face shield, gloves made from nitrile or latex, lab coats or coveralls for prolonged or significant exposure
Respiratory Protection: Use N95 or similar dust masks in areas with excessive dust, especially during transfers or spills
Hygiene Measures: Wash hands thoroughly after handling, do not eat or drink in work areas, shower after heavy exposures
Appearance: White or colorless crystalline powder
Odor: Odorless
Odor Threshold: Not applicable
Melting Point: 1124°C (2055°F)
Boiling Point: Decomposes before boiling
Solubility: Readily soluble in water (35 g/100 mL at 20°C), insoluble in alcohol
pH: About 6 – 7 (50 g/L solution at 20°C)
Vapor Pressure: Not applicable
Density: 2.66 g/cm³
Flash Point: Not applicable
Evaporation Rate: Not applicable
Other Properties: Hygroscopic, absorbs moisture from air, non-volatile
Chemical Stability: Stable under recommended storage and handling conditions
Reactivity: Not reactive under normal environmental or handling conditions
Hazardous Reactions: Reacts with strong acids to release sulfur oxides; decomposes at high temperature to magnesium oxide and sulfur dioxide
Conditions to Avoid: Moisture, excessive heat, strong acids
Incompatible Materials: Strong acids, oxidizers, water (causes clumping, dissolves powder)
Hazardous Decomposition Products: Sulfur oxides, magnesium oxides in fires or decomposition scenarios
Acute Toxicity: Low oral toxicity in humans and animals; oral LD50 (rat) > 8000 mg/kg
Inhalation Effects: Dust may cause mild respiratory irritation in sensitive individuals
Dermal Effects: Not known to cause significant skin irritation
Eye Effects: Dust may cause mechanical irritation, mild redness or tearing
Chronic Effects: No evidence of chronic toxicity observed in normal occupational handling
Sensitization: Not classified as a skin or respiratory sensitizer
Carcinogenicity: Not listed as carcinogenic by IARC, ACGIH, NTP, or OSHA
Other Data: Large oral doses may cause diarrhea or mild systemic effects due to laxative action
Ecotoxicity: Magnesium sulfate in high concentrations may be toxic to aquatic organisms by altering water chemistry
Mobility: Soluble in water, mobile in aquatic environments
Persistence and Degradability: Inorganic salt, does not degrade biologically but disperses in environment
Bioaccumulation Potential: Not expected to bioaccumulate
Aquatic Toxicity Data: LC50 (fish, 96h): approximately 15500 mg/L (rainbow trout)
Other Ecological Info: Avoid high-volume releases to surface water, as large concentrations can disrupt aquatic ecosystems
Waste Disposal Methods: Dispose of as non-hazardous inorganic waste in accordance with local regulations
Packing for Disposal: Use sealed containers, avoid groundwater contamination
Unused Product: Offer for recycling or authorized landfill
Empty Containers: Triple rinse and offer for recycling or disposal in compliance with state and federal laws
Precautions: Do not discharge large amounts into sewers or waterways
UN Number: Not classified as dangerous goods by RID/ADR, IMDG, IATA
Proper Shipping Name: Not regulated
Transport Hazard Class: Not assigned
Packing Group: Not assigned
Special Precautions: Avoid moisture contact in transit; use water-resistant packaging
Environmental Hazards: Not a marine pollutant, not classified as hazardous for land, sea, or air transport
Global Inventories: Listed on TSCA (US), DSL (Canada), EINECS (EU), AICS (Australia), ENCS (Japan)
SARA Title III: Not listed as an extremely hazardous substance
OSHA Standards: Not regulated as a hazardous chemical
California Proposition 65: Product contains no chemicals known to the State of California to cause cancer or reproductive toxicity
REACH (EU): Registered, no Restrictions under Annex XVII
Other Regulations: Complies with current chemical control laws and food-grade standards where purity meets applicable regulations
Labeling Requirements: Product identification, supplier name, precautionary advice per local labeling regulations
