Product Name: Monosodium Citrate Anhydrous
Chemical Formula: C6H7NaO7
Synonyms: Sodium Citrate Monobasic, Sodium Dihydrogen Citrate
CAS Number: 18996-35-5
Recommended Use: Food additive, buffer, pharmaceutical excipient
Supplier Information: See label or packaging for supplier address and emergency contact
Emergency Telephone: Refer to packaging or supplier instructions for emergency support numbers
GHS Classification: Not classified as hazardous under GHS
Hazard Statements: May cause mild eye irritation. Prolonged skin contact can cause slight irritation.
Precautionary Statements: Avoid unnecessary contact with eyes and skin. Prevent ingestion and inhalation.
Signal Word: None
Pictograms: None required for this substance
Other Hazards: Inhalation of large amounts of dust can cause mild respiratory discomfort
Chemical Identity: Monosodium Citrate Anhydrous
Concentration: 100%
Impurities: Typical batches do not contain significant impurities; check supplier batch certificate.
Molecular Weight: 214.11 g/mol
Ingredient Disclosure: Contains only monosodium citrate, with no added substances
Eye Contact: Rinse eyes gently with plenty of clean water for at least 15 minutes. Remove contact lenses if present and continue rinsing. Seek medical advice if irritation persists.
Skin Contact: Wash skin with soap and lukewarm water for several minutes. Remove contaminated clothing. Seek medical attention if redness or irritation continues.
Inhalation: Move affected person to fresh air. Allow rest and seek medical care if symptoms such as coughing or shortness of breath develop.
Ingestion: Rinse mouth out thoroughly with water. Do not induce vomiting. Drink small amounts of water and consult a medical professional if feeling unwell.
Acute and Delayed Effects: No acute health hazards under normal use.
Suitable Extinguishing Media: Use water spray, foam, dry powder, or carbon dioxide extinguishers.
Specific Hazards: Emits irritating fumes or gases if involved in a fire, including carbon oxides and sodium oxides.
Protective Equipment for Firefighters: Wear self-contained breathing apparatus and full protective suit.
Special Firefighting Procedures: Prevent runoff from entering waterways. Cool fire-exposed containers with water. Avoid inhaling smoke or combustion gases.
Hazardous Combustion Products: Carbon dioxide, carbon monoxide, sodium oxide fumes.
Personal Precautions: Avoid breathing dust. Wear personal protective equipment including gloves, mask, and goggles.
Environmental Precautions: Prevent bulk material from entering drains, soil, and surface water.
Cleanup Methods: Sweep up spilled powder carefully and transfer to a labeled container for disposal. Use a wet method to minimize dust. Ventilate the area to clear dust.
Disposal of Collected Material: Dispose in accordance with local regulations, using approved chemical waste facilities.
Additional Advice: Avoid raising dust. Ensure adequate ventilation during cleanup.
Safe Handling: Handle with dry gloves and avoid creating dust clouds. Use in well-ventilated areas. Wash hands after handling—before eating, drinking, or smoking.
Restrictions on Handling: Do not eat, drink or smoke in the work area.
Storage Conditions: Store in a cool, dry place away from incompatible substances such as strong acids and bases.
Container Requirements: Keep container tightly sealed and clearly labeled.
Conditions to Avoid: Contact with moisture, excessive heat, and strong oxidizing agents.
Storage Life: Maintain storage temperature as specified on product packaging to ensure quality.
Occupational Exposure Limits: No specific exposure limits established for this substance.
Engineering Controls: Use local exhaust ventilation with adequate airflow in processing areas.
Personal Protective Equipment: Safety goggles, chemical-resistant gloves, lab coat or apron, and dust mask if dust is generated.
Hygiene Measures: Wash thoroughly after handling. Remove contaminated clothing and wash before reuse.
Environmental Controls: Prevent material from entering surface waters, soil, or drains.
Appearance: White, crystalline powder or granules
Odor: Odorless
Odor Threshold: Not applicable
pH (1% solution): 2.0—2.5
Melting Point: Decomposes above 150°C
Boiling Point: Not available
Flash Point: Not applicable
Flammability: Not flammable
Solubility in Water: Highly soluble
Partition Coefficient (n-octanol/water): Not established
Vapor Pressure: Not applicable
Vapor Density: Not applicable
Relative Density: 1.80—1.92 g/cm³
Auto-ignition Temperature: Not available
Decomposition Temperature: >150°C
Evaporation Rate: Not applicable
Chemical Stability: Stable under recommended storage and use conditions.
Hazardous Reactions: None expected under normal conditions.
Incompatible Materials: Strong acids, strong bases, oxidizing agents.
Condition to Avoid: Excessive heat, moisture, and contact with reactive chemicals.
Hazardous Decomposition Products: Releases carbon oxides (CO, CO₂) and sodium oxides during thermal decomposition.
Acute Toxicity: Not classified as acutely toxic based on available data.
Chronic Toxicity: No evidence of chronic health effects in laboratory studies or workplace exposure.
Skin Corrosion/Irritation: May cause mild, temporary irritation after prolonged or repeated contact.
Eye Damage/Irritation: Mild, reversible irritation may occur.
Respiratory/Skin Sensitization: Not reported to cause sensitization.
Germ Cell Mutagenicity: No known mutagenic effects.
Carcinogenicity: Not listed as a carcinogen by NTP, IARC, OSHA.
Reproductive Toxicity: No significant effects reported in available literature.
Specific Target Organ Toxicity: None identified.
Symptoms: Large amounts may cause gastrointestinal discomfort if ingested.
Ecotoxicity: Expected to have low environmental toxicity based on chemical structure.
Persistence and Degradability: Readily biodegradable in water and soil environments.
Bioaccumulation Potential: Low; not expected to bioaccumulate.
Mobility in Soil: Easily water-soluble and mobile in soil.
Other Adverse Effects: No data suggesting adverse effects on aquatic or terrestrial ecosystems in typical usage scenarios.
Waste Disposal Methods: Dispose of material in accordance with federal, state, and local regulations.
Container Disposal: Rinse empty containers with water before disposing or recycling.
Special Considerations: Avoid discharge to sewage systems or watercourses.
Hazardous Waste: Not regulated as hazardous waste. Confirm with regional authorities.
UN Number: Not regulated
UN Proper Shipping Name: Not regulated as a dangerous good
Transport Hazard Class: Non-hazardous
Packing Group: Not assigned
Special Precautions: Protect packaging from exposure to moisture or sources of contamination during transport.
Environmental Hazards: Not classified as a marine pollutant.
Safety, Health and Environmental Regulations: Listed in national inventories including TSCA (USA), EINECS (Europe), DSL (Canada). Allowed as a food additive (E331).
Labeling Requirements: No hazard labeling required under GHS criteria.
Workplace Exposure Standards: Follow general chemical safety standards as outlined by OSHA, ACGIH, or local labor agencies.
Restrictions: None identified for industrial, food, or pharmaceutical use within standard guidelines.
Other Regulatory Details: Complies with REACH requirements in the European Union. Check country-specific legislation and registration where applicable.
