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Product Name: Magnesium Chloride
Chemical Formula: MgCl2
Synonyms: Anhydrous magnesium chloride, Magnesium dichloride
CAS Number: 7786-30-3
Recommended Use: Deicing, dust control, chemical synthesis, food additive, laboratories
Supplier Details: Contact supplier for emergency numbers and address details.
Classification: Not classified as a hazardous substance according to OSHA GHS regulations
Label Elements: No symbol required, no signal word
Health Hazards: Causes irritation to eyes, skin, and respiratory tract upon excessive exposure.
Physical Hazards: May react with strong oxidizers, capable of releasing hydrogen chloride under high temperatures.
Environmental Hazards: Can be moderately harmful in concentrated forms to aquatic life due to increased salinity.
Pictograms: None mandated
Precautionary Statements: Avoid contact with eyes and skin, use in a ventilated area, prevent large releases into waterways.
Ingredient Name: Magnesium Chloride
Purity: 98%–100%
Impurities: Trace amounts of potassium chloride, calcium chloride, sodium chloride
EC Number: 232-094-6
Molecular Weight: 95.21 g/mol
Eye Contact: Flush gently with plenty of water for at least 15 minutes, hold eyelids open, seek medical attention if irritation persists.
Skin Contact: Remove contaminated clothing, wash area thoroughly with soap and water.
Inhalation: Move affected person to fresh air. Seek medical help if coughing or dizziness develops.
Ingestion: Rinse mouth, do not induce vomiting, drink water to dilute, seek immediate medical attention if large amount consumed or symptoms develop.
Most Important Symptoms and Effects: Redness, irritation, stomach upset for ingestion, no long-term health effects expected from minor exposures.
Suitable Extinguishing Media: Use water spray, dry chemical, CO2, or foam. Product itself is non-flammable.
Hazards from Combustion: Magnesium chloride does not burn but may emit intense heat and release hydrogen chloride and magnesium oxide at high temperatures.
Protective Equipment: Firefighters should wear self-contained breathing apparatus and full turnout gear.
Special Procedures: Cool surrounding containers with water spray to prevent pressure build-up, evacuate area if fire is severe.
Personal Precautions: Avoid contact with eyes, skin, and clothing, use personal protective equipment, provide adequate ventilation.
Environmental Precautions: Prevent large quantities from entering drains, surface water, or soil.
Containment Methods: Sweep up, shovel or vacuum material to prevent dust generation.
Clean-up Methods: For small spills, dilute with excess water, mop up, dispose by local regulations; for large spills, collect in suitable containers.
Safe Handling: Avoid creating dust, wear gloves and goggles as needed, use mechanical ventilation in enclosed areas.
Storage Conditions: Store in a cool, dry, well-ventilated place, keep container tightly sealed, protect from moisture, label all containers clearly.
Incompatibilities: Avoid storage with strong acids, bases, or oxidizing agents which may cause unwanted reactions or degrade product integrity.
Storage Temperature: Keep below 40°C, humidity control recommended.
Occupational Exposure Limits: No OSHA PEL assigned; ACGIH TLV not established.
Engineering Controls: Use local exhaust and general ventilation to minimize dust levels.
Personal Protective Equipment: Wear chemical-resistant gloves, safety goggles, dust mask or respirator where dust generation is possible, long-sleeved clothing.
Hygiene Measures: Wash hands after handling, change contaminated clothing, shower if needed after heavy exposure.
Appearance: White flakes, pellets, or crystalline powder
Odor: Odorless
Odor Threshold: Not applicable
pH (1% solution): 7–9
Melting Point: 714°C (anhydrous)
Boiling Point: 1,412°C (anhydrous)
Solubility: Soluble in water, insoluble in ethanol and acetone
Specific Gravity: Approximately 2.32 (water = 1)
Evaporation Rate: Not applicable
Vapor Pressure: Negligible
Partition Coefficient: Not available
Decomposition Temperature: Decomposes above 800°C with HCl evolution.
Chemical Stability: Stable under recommended storage and handling conditions.
Reactivity: Hygroscopic, absorbs moisture from air rapidly.
Hazardous Reactions: Reacts with strong acids to release hydrogen chloride gas, may corrode metals.
Incompatible Materials: Strong oxidizers, acids, water-reactive chemicals.
Decomposition Products: Magnesium oxide, hydrogen chloride.
Conditions to Avoid: Heat, open flames, moisture, incompatible substances.
Routes of Exposure: Inhalation, ingestion, dermal, ocular.
Acute Toxicity: Oral LD50 (rat): ≥2,800 mg/kg
Chronic Effects: Not classified as a carcinogen, mutagen, or reproductive toxin.
Irritation: Prolonged or repeated skin contact may cause dryness or cracking; high airborne concentrations can irritate respiratory tract.
Sensitization: Not expected under normal use.
Other Effects: Large oral doses may disrupt electrolyte balance and cause stomach upset.
Aquatic Toxicity: Can elevate salinity in water bodies, potentially harmful to fish in high concentrations.
Terrestrial Impact: High concentrations may inhibit plant growth by increasing soil salinity.
Persistence and Degradability: Fully dissociates in water to magnesium and chloride ions.
Bioaccumulation: Not expected in aquatic organisms.
Mobility in Soil: Highly mobile due to high water solubility.
Other Effects: Avoid bulk discharge to natural waters and soils.
Waste Disposal Methods: Dispose of in accordance with local, regional and national regulations.
Contaminated Packaging: Rinse containers thoroughly before recycling or disposal.
Environmental Precautions: Do not discharge into drains, surface water, or soil in concentrated forms.
Recommended Disposal: Use a licensed chemical disposal contractor; avoid incineration due to corrosive byproducts.
UN Number: Not regulated as a dangerous good for road, rail, sea, or air transport
UN Proper Shipping Name: Not regulated
Transport Hazard Class: Not applicable
Packing Group: Not applicable
Marine Pollutant: No
Special Precautions for User: Avoid moisture during transit, ensure packaging is secure and properly labeled.
OSHA Status: Not listed as hazardous under OSHA’s Hazard Communication Standard.
TSCA Inventory: Listed
SARA Title III: Not subject to reporting requirements for SARA Section 302, 304, 313.
California Proposition 65: Not listed
EU Regulations: Not classified as hazardous according to EU Regulation (EC) No 1272/2008.
Other Regulatory Listings: Check local, state, and federal listings for specific regulatory controls in your area.
