Material Safety Data Sheet (MSDS) – Superfine Sodium Bicarbonate

Identification

Product Name: Superfine Sodium Bicarbonate
Chemical Formula: NaHCO₃
Synonyms: Baking Soda, Bicarbonate of Soda, Sodium Hydrogen Carbonate
CAS Number: 144-55-8
Recommended Use: Leavening agent in food processing, cleaning product, pH adjustment, fire extinguisher additive, animal feed, pharmaceutical formulations, household applications
Supplier: [Name and contact of supplier or manufacturer]
Emergency Contact Number: [24-hour emergency line]

Hazard Identification

Hazard Classification: Not classified as a hazardous substance under GHS
Signal Word: None
Pictogram: None
Hazard Statements: May cause mild irritation to eyes and respiratory tract if dust is generated and inhaled
Precautionary Statements: Avoid generation of dust. Wash hands after handling. Do not ingest large amounts. Store away from incompatible substances.
Routes of Exposure: Inhalation, ingestion, skin or eye contact

Composition / Information on Ingredients

Chemical Name: Sodium Bicarbonate
Concentration: above 99%
Other Components: Trace water, very minor natural impurities
Impurities and Stabilizing Additives: None expected in food or pharma quality

First Aid Measures

Eye Contact: Rinse eyes immediately with water for at least 10 minutes. Seek medical attention if irritation persists.
Skin Contact: Wash skin thoroughly with soap and water. Remove contaminated clothing and wash before reuse.
Inhalation: Move person to fresh air. Seek medical attention if respiratory discomfort or symptoms continue.
Ingestion: Rinse mouth with water. Drink water to dilute if swallowed in large quantities. Seek medical help if significant discomfort or unusual reaction occurs.
Most Important Symptoms and Effects: Temporary irritation, coughing, mild eye or skin irritation.

Fire-Fighting Measures

Suitable Extinguishing Media: Not combustible; use appropriate means for surrounding fire (water spray, dry chemical, foam, carbon dioxide).
Specific Hazards: Heated material may release carbon dioxide gas. Avoid breathing dust or fumes in a fire.
Special Protective Equipment: Standard firefighting equipment, self-contained breathing apparatus in heavy smoke or confined spaces.
Additional Information: Product can assist in fire suppression by producing carbon dioxide that displaces oxygen.

Accidental Release Measures

Personal Precautions: Wear dust mask, safety goggles, and gloves to prevent irritation.
Environmental Precautions: Prevent large spills from entering waterways. Sweep up granules or powder to avoid slip hazard.
Methods of Cleanup: Sweep or vacuum up product and place in suitable sealed container for disposal or reuse. Flush area with water if needed.
Spill Response: Avoid creating airborne dust. Ventilate area as necessary.

Handling and Storage

Handling: Avoid inhaling dust. Use local exhaust if necessary. Wash hands after handling.
Storage Conditions: Store in a cool, dry, well-ventilated area. Keep containers tightly closed to prevent moisture absorption and contamination. Do not store with acids or ammonium salts.
Packaging Materials: Use moisture-resistant materials. Avoid contact with incompatible substances.
Special Requirements: Label containers properly. Avoid stacking heavy loads on bags or boxes.

Exposure Controls and Personal Protection

Occupational Exposure Limits: No specific OSHA or ACGIH limits; use general dust exposure control guidelines (OSHA PEL for nuisance dust: 15 mg/m³ total dust, 5 mg/m³ respirable fraction).
Engineering Controls: Provide local exhaust or general ventilation for large-scale use.
Personal Protective Equipment: Respiratory protection (dust mask or respirator) during dusty operations; safety goggles for eye protection; gloves for those with sensitive skin.
Hygiene Measures: Wash thoroughly after handling and before meals.

Physical and Chemical Properties

Appearance: Odorless, fine white crystalline powder
pH: Approximately 8.3 (1% water solution)
Melting Point/Range: Decomposes above 50°C (releases CO₂)
Odor: None
Boiling Point: Not applicable (decomposes before boiling)
Solubility in Water: 96 g/L at 20°C
Specific Gravity: Around 2.16
Vapor Pressure: Not volatile
Evaporation Rate: Not volatile
Partition Coefficient: Not applicable
Flash Point: Not flammable
Explosive Properties: Not explosive

Stability and Reactivity

Chemical Stability: Stable under normal conditions
Conditions to Avoid: Moisture, excessive heat, acids, strong oxidizers
Incompatible Materials: Acids (release carbon dioxide gas), ammonium salts, aluminum, strong bases
Hazardous Decomposition Products: Carbon dioxide when heated or mixed with acids, trace sodium carbonate
Possibility of Hazardous Reactions: Vigorous reaction with acids

Toxicological Information

Acute Toxicity: Practically non-toxic (oral LD₅₀ in rats above 4000 mg/kg)
Skin Irritation: Low risk; may cause mild irritation with prolonged contact
Eye Irritation: Dust can cause mild eye irritation
Inhalation: Dust may provoke mild respiratory tract irritation, coughing
Sensitization: Not expected to cause allergic reactions
Long-Term Exposure: Large, repeated ingestion may impact electrolyte balance in sensitive persons
Carcinogenicity: Not classified as carcinogen by NTP, IARC, or OSHA

Ecological Information

Aquatic Toxicity: Low toxicity to aquatic life; large releases may raise pH and may affect local ecosystems
Persistence and Degradability: Readily separates in water, does not persist
Bioaccumulative Potential: Not expected to bioaccumulate
Mobility in Soil: Highly soluble, will move freely in water
Other Environmental Hazards: No known long-term ecological effects at normal handling levels

Disposal Considerations

Waste Disposal: Dispose according to local, national, or regional regulations. Small amounts can go to landfill with general waste.
Container Disposal: Rinse thoroughly if reused or recycle as appropriate. Avoid releasing large volumes to sewer unless authorized.
Recommended Methods: Use up product whenever possible; non-hazardous waste stream for residues and packaging low in contamination.

Transport Information

UN Number: Not regulated as dangerous good
Proper Shipping Name: Sodium Bicarbonate
Transport Hazard Class: Non-hazardous material
Packing Group: Not assigned
Marine Pollutant: No
Special Precautions: Protect from moisture and physical damage. For food/pharma lots, keep sealed and segregated from incompatible substances.

Regulatory Information

Inventory Status: Listed on TSCA, EINECS, AICS, DSL, ENCS
SARA/Title III: Not subject to Section 313 reporting
Labeling Requirements: No hazard labeling mandated for normal retail or consumer use
Other Regulations: Meets purity standards for food and pharmaceutical use where specified. Product for industrial use may not be suitable for ingestion. Local rules may set maximum exposure levels for workplace airborne dust.