Material Safety Data Sheet: Magnesium Citrate

Identification

Product Name: Magnesium Citrate
Chemical Formula: C6H6MgO7
CAS Number: 3344-18-1
Synonyms: Trimagnesium dicitrate, Citrate of magnesia
Recommended Use: Dietary supplement, pharmaceutical, laboratory reagent
Supplier Information: Manufacturer and distributor contact details should be provided on this sheet to meet regulatory needs.

Hazard Identification

GHS Classification: Not classified as hazardous according to OSHA Hazard Communication Standard
Signal Word: None
Hazard Statements: At large doses, may cause gastrointestinal upset
Skin Contact: Low risk; mild irritation possible
Eye Contact: Irritation or redness possible on contact
Inhalation: Dust may irritate respiratory tract
Precautionary Statements: Avoid generating dust, use in ventilated areas, wear suitable protection during handling

Composition / Information on Ingredients

Chemical Name: Magnesium Citrate
CAS No.: 3344-18-1
Purity: 98–100% by mass
Impurities: May contain trace inorganic salts or water as hydrate, depending on supplier

First Aid Measures

Inhalation: Move affected person to fresh air, monitor for persistent coughing or shortness of breath, seek medical attention if symptoms continue
Skin Contact: Wash area thoroughly with soap and water, remove contaminated clothing, seek attention for persistent irritation
Eye Contact: Rinse cautiously with water for several minutes, hold eyes open, remove contact lenses if possible, seek medical advice for symptoms
Ingestion: Rinse mouth, give water to drink, seek medical attention if discomfort or persistent symptoms occur

Fire-Fighting Measures

Suitable Extinguishing Media: Use water spray, dry chemical, carbon dioxide, or foam
Unsuitable Media: No specific unsuitable media identified
Specific Hazards: Product does not readily ignite; thermal decomposition may yield carbon oxides and magnesium oxide
Special Protective Equipment for Firefighters: Full protective gear, self-contained breathing apparatus; prevent run-off from entering drains and watercourses

Accidental Release Measures

Personal Precautions: Avoid breathing dust, use appropriate personal protective equipment, ensure adequate ventilation
Environmental Precautions: Prevent large quantities from entering sewers and waterways
Methods for Clean-Up: Sweep up gently to avoid dust generation, transfer to a suitable container for disposal, clean spill area with water

Handling and Storage

Handling: Handle in accordance with good chemical hygiene and safety practices, minimize airborne dust, wash hands after use
Storage: Store in tightly closed containers, protect from moisture and high humidity, keep away from incompatible substances like strong acids

Exposure Controls and Personal Protection

Occupational Exposure Limits: No established exposure limits for magnesium citrate
Engineering Controls: Work in well-ventilated rooms or use local exhaust ventilation to control airborne dust
Personal Protective Equipment: Dust masks or respirators for dust exposure, safety glasses or goggles, laboratory coats, gloves for prolonged contact

Physical and Chemical Properties

Appearance: White or nearly white powder or crystalline granules
Odor: Odorless
Odor Threshold: Not applicable
pH (1% solution): 5.0–9.0
Melting Point: Decomposes before melting
Boiling Point: Not applicable
Solubility: Slightly soluble in water, insoluble in alcohol
Density: About 1.8 g/cm3 at 20°C
Vapor Pressure: Not applicable
Partition Coefficient: Not available
Flash Point: Not combustible
Auto-Ignition Temperature: No data available

Stability and Reactivity

Chemical Stability: Stable under normal conditions
Conditions to Avoid: High humidity, contact with strong acids or bases, excessive heat
Incompatible Materials: Strong oxidizers, strong acids
Hazardous Decomposition Products: Magnesium oxide, carbon oxides formed under fire conditions
Hazardous Reactions: No dangerous reactions under normal handling and storage

Toxicological Information

Acute Toxicity: Oral LD50 in rats exceeds 2,000 mg/kg
Chronic Effects: Not known to be carcinogenic, mutagenic, or have reproductive toxicity
Local Effects: May irritate mucous membranes, eyes, or skin
Health Hazards: Excessive ingestion may cause diarrhea, abdominal pain, or electrolyte imbalance
Sensitization: Not expected to cause allergic sensitization

Ecological Information

Aquatic Toxicity: Not expected to harm aquatic life in small concentrations
Persistence and Degradability: Readily biodegradable
Bioaccumulative Potential: Low potential for bioaccumulation
Mobility in Soil: Product is expected to have moderate mobility in soil due to water solubility
Other Adverse Effects: No large-scale environmental hazards identified

Disposal Considerations

Waste Treatment Methods: Dispose of in compliance with local, state, and federal regulations
Waste from Residues: Small amounts can be disposed with general waste stream where regulations allow
Contaminated Packaging: Rinse thoroughly before recycling or disposal, follow local requirements

Transport Information

UN Number: Not regulated for transport
Proper Shipping Name: Not classified as hazardous for transportation
Hazard Class: Not applicable
Packing Group: Not applicable
Special Precautions: Keep package dry during transport, avoid physical damage

Regulatory Information

TSCA Inventory: Listed
REACH Status: Exempt as a food/pharmaceutical substance
SARA Title III: Not subject to reporting
California Proposition 65: Not listed as a carcinogen or reproductive toxin
Other Regulatory Listings: Complies with applicable European, Canadian, and Australian chemical regulations for food or pharmaceutical substances
Labeling Requirements: Ensure packaging contains safety, handling, and ingredient information as specified by local regulation