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Product Name: Magnesium Citrate Nonahydrate
Chemical Formula: C6H6MgO7·9H2O
CAS Number: 10034-99-8
Common Synonyms: Trimagnesium citrate, Magnesium salt of citric acid
Manufacturer: Listed from supplier packaging
Emergency Contact: See label from supplier
Intended Use: Laboratory reagent, supplement ingredient, pharmaceutical excipient
Contact Information: Provided on safety label
Hazard Class: Non-hazardous under GHS classification
Physical Hazards: Not considered flammable or explosive
Health Hazards: Dust inhalation may trigger minor throat or nasal irritation; ingestion of large quantities might upset digestion; skin or eye contact rarely causes mild irritation
Signal Word: None required by OSHA regulations
Pictograms: None required
Precautionary Statements: Avoid generating dust, limit ingestion, wash thoroughly after use
Ingredient: Magnesium Citrate Nonahydrate
Concentration: 99–100%
Impurities: May contain trace levels of other magnesium salts from manufacturing process
Other Components: No known hazardous impurities present as per safety data
Inhalation: Move person to fresh air. If breathing difficulty continues, seek medical care
Skin Contact: Wash thoroughly with water. Soap is helpful if irritation arises
Eye Contact: Rinse cautiously with water for several minutes. Hold eyelids open. If irritation persists, get medical attention
Ingestion: Rinse mouth. Drink water. Seek advice from a healthcare provider if uncomfortable symptoms arise after accidental large intake
Comments: No specific antidote required, treat symptoms as needed
Suitable Extinguishing Media: Use dry chemical, CO2, or water spray
Unsuitable Media: None expected
Hazardous Combustion Products: May give off magnesium oxide, carbon oxides in high heat
Protective Equipment for Firefighters: Standard gear including self-contained breathing apparatus
Special Notes: Material itself does not burn, packaging fire controls more pressing
Personal Precautions: Wear dust mask if handling large spills; use gloves to prevent skin drying
Environmental Precautions: Prevent solids from entering large water bodies or waste systems in bulk
Methods for Cleaning Up: Sweep carefully, place in container for disposal. Wash area with water if needed to remove minor residues
Handling: Use with adequate ventilation. Minimize dust creation by working gently
Hygiene Measures: Wash hands after handling and before eating
Storage: Store in sealed container in dry, cool location. Avoid high humidity to prevent clumping
Incompatible Materials: Avoid exposure to strong acids, alkalis; reacts mildly if mixed wet
Occupational Exposure Limits: No established OSHA or ACGIH limits for magnesium citrate
Engineering Controls: Use local exhaust ventilation for bulk, dusty applications
Personal Protective Equipment: Gloves for long handling tasks, dust goggles or glasses for eye protection
Respiratory Protection: Dust mask if airborne powder levels rise in workspace
Work Practices: Clean up small spills promptly, launder work wear regularly
Appearance: White crystalline powder
Odor: Odorless
pH: 6.0–8.5 (5% solution in water)
Melting Point: Decomposes above 150°C
Boiling Point: Not applicable
Solubility: Freely soluble in water, forms slightly cloudy solution; insoluble in ethanol
Vapor Pressure: Negligible
Density: About 1.6 g/cm³
Other Properties: Stable under typical lab and industrial conditions; loses water of crystallization at elevated heat
Chemical Stability: Remains stable under dry, normal temperatures
Conditions to Avoid: Prolonged moisture, excessive heat
Incompatible Materials: Strong acids, strong bases; moderate reaction if exposed
Hazardous Decomposition: At high temperatures releases magnesium oxide, possibly carbon dioxide
Polymerization: Does not polymerize
Acute Toxicity: Expected to be non-toxic in small oral doses; high amounts may upset gastrointestinal system
Chronic Effects: No evidence of carcinogenic or mutagenic risks in animal or human studies
Skin Contact: Rare irritation if handled in bulk without protection
Eye Contact: Slight irritation possible from powder
Sensitization: No known reports of allergic reactions
LD50 (oral, rat): Not determined, expected to be high due to food additive use
Ecotoxicity: Low risk in aquatic and terrestrial environments; magnesium and citrate ions found naturally
Aquatic Toxicity: No data suggesting environmental danger at typical concentrations
Mobility in Soil: Soluble, migrates through water systems easily
Persistence and Degradability: Rapidly breaks down to magnesium and citrate in water and soil
Bioaccumulation: Components do not concentrate in living organisms
Waste Treatment Methods: Small quantities can typically enter regular waste after dilution in water
Disposal Containers: Use tight, sealed containers to avoid accidental dust spread
Residual Waste: Wash away minimal residues with plenty of water
Environmental Hazards: Avoid bulk disposal in bodies of water to reduce magnesium spikes
UN Number: Non-regulated material
UN Proper Shipping Name: Not classified as hazardous
Transport Hazard Class: No restrictions under ADR, IMDG, IATA
Packing Group: Not assigned
Environmental Hazards: Not considered harmful during transport
Special Precautions: Protect from moisture during shipping to prevent product clumping
GHS Status: Not classified as dangerous goods or hazardous substance.
TSCA Inventory: Listed
REACH Status: Exempt or pre-registered
OSHA: Not regulated as hazardous
California Proposition 65: Not listed
EU Classification: Not dangerous under Regulation (EC) No. 1272/2008
Other Regulations: Approved food ingredient, supplement, and pharmaceutical excipient; follow site-specific safety practices as needed
