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Product Name: Sodium Carboxymethyl Starch
Chemical Family: Modified Starch Derivative
Synonyms: Carboxymethyl ether of starch, CMS-Na
Recommended Use: Thickener, binder, stabilizer, textile sizing agent, paper coating agent, pharmaceutical excipient
Supplier Identification: Manufacturer’s name, address, emergency contact phone number
CAS Number: 9063-38-1
UN Number: Not regulated
Restrictions on Use: Do not ingest, avoid dust inhalation, not intended for food use unless designated as food-grade
Classification: Non-hazardous according to GHS, dust may cause mild respiratory irritation
Label Elements: No pictogram required; signal word not required
Potential Health Effects: Eye contact may lead to irritation, inhalation of powder may provoke coughing and sneezing
Fire and Explosion Hazards: Dust concentrations can present an explosive risk in poorly ventilated areas
Environmental Hazards: Minimal, product is biodegradable
Precautionary Statements: Prevent dust buildup, use appropriate personal protective equipment, ensure proper ventilation
Main Ingredient: Sodium Carboxymethyl Starch (60–90%)
Chemical Formula: C6H11O5Na•x
Impurities / Stabilizing Additives: Moisture content (up to 10%), trace residual sodium chloride, trace by-products from synthesis
Substances or Mixtures: Substance
Occupational Exposure Limit for Inert Components: Nuisance dust limits apply
Inhalation: Move affected person to fresh air; provide water; medical attention if symptoms persist
Skin Contact: Remove contaminated clothing, rinse skin thoroughly with soap and water; if irritation appears, consult a physician
Eye Contact: Rinse cautiously with clean water for 15 minutes, keep eyes wide open; seek medical advice if pain or redness continues
Ingestion: Rinse mouth, drink plenty of water to dilute, medical advice recommended for large ingestion or discomfort
Most Important Symptoms/Effects: Mild cough, throat dryness, itchy eyes, minor gastrointestinal upset if ingested in quantity
Suitable Extinguishing Media: Water spray, dry chemical, carbon dioxide, foam
Unsuitable Extinguishing Media: Direct water jet may cause dust clouds
Specific Hazards Arising from the Chemical: Combustion generates CO, CO2, minor amounts of other organic compounds
Protective Equipment for Firefighters: Use self-contained breathing apparatus; fire-resistant clothing
Special Precautions: Prevent dust accumulation, avoid dispersing dust in air, withdraw if fire grows uncontrollable
Personal Precautions: Eliminate all ignition sources, use personal protective equipment, minimize dust, avoid breathing dust
Environmental Precautions: Prevent uncontrolled release into drains or waterways, sweep up promptly
Methods for Clean-Up: Collect spilled material with clean shovel or vacuum fitted with HEPA filter, use wet methods to reduce airborne dust, wash spill site after pickup
Procedures for Containment: Avoid sweeping dry which may raise dust, seal waste in suitable containers for disposal
Disposal of Cleanup Materials: Dispose of as non-hazardous waste unless contamination occurred
Precautions for Safe Handling: Use only with local exhaust or general ventilation, minimize dust generation, avoid eating and drinking in work area
Safe Storage Conditions: Keep in tightly sealed containers out of direct sunlight, store in cool, dry, well-ventilated area
Incompatible Materials: Strong oxidizers can result in exothermic reaction, acids may cause premature hydrolysis
Storage Restrictions: Do not store with food or feed, segregate from combustibles and oxidizing agents
Packaging Materials: Polyethylene-lined bags, fiber drums, sealed containers to avoid moisture uptake
Occupational Exposure Limits: Total inhalable dust: 10 mg/m³ (8h TWA), respirable dust: 4 mg/m³ (8h TWA) as per local legislation
Engineering Controls: Provide ventilation, process enclosure, and dust collection systems
Personal Protection: Wear safety glasses or goggles, gloves of nitrile or latex if repeated skin contact, protective clothing for bulk handling
Respiratory Protection: Dust mask/respirator for high concentrations
Hygienic Practices: Wash hands before eating, wash work clothes regularly, remove contaminated clothing immediately
Appearance: White to off-white powder or fine granules
Odor: Odorless
pH (1% Solution): 8.0–11.0
Solubility: Dispersible in water, forms colloidal solution
Melting Point: Decomposes before melting
Boiling Point: Not applicable for solids
Bulk Density: 0.45–0.65 g/cm³
Vapor Pressure: Not volatile
Flash Point: No data; not readily flammable
Explosion Limits: Dust may form explosive mixture with air, lower explosion limit varies with particle size
Auto-Ignition Temperature: Approximately 430°C
Partition Coefficient (n-octanol/water): Not applicable
Decomposition Temperature: Over 200°C
Other Data: Hygroscopic, absorbs moisture from air
Chemical Stability: Stable under recommended storage conditions
Hazardous Reactions: Reacts with strong oxidizing agents to produce gases and heat
Conditions to Avoid: Heat, sparks, open flame, excess moisture
Incompatible Materials: Concentrated acids, oxidizers
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide, trace organic byproducts
Polymerization: Not known to occur
Acute Toxicity: Very low oral and dermal toxicity (LD50 in rats > 2000 mg/kg)
Chronic Effects: No evidence of carcinogenicity, mutagenicity, or reproductive toxicity in available data
Routes of Exposure: Inhalation, ingestion, skin and eye contact
Symptoms:** May include minor respiratory irritation, mild skin dryness, slight eye discomfort
Medical Conditions Aggravated by Exposure: Respiratory diseases, asthma, sensitive skin
Sensitization: Not a known sensitizer
Ecotoxicity: Not expected to be hazardous, biodegrades naturally
Mobility in Soil: Low mobility, binds with soil, gradually decomposes
Persistence and Degradability: Biodegradable under aerobic and anaerobic conditions
Bioaccumulation Potential: Low, does not concentrate in living organisms
Aquatic Toxicity:** Not toxic to aquatic life at typical environmental concentrations
Waste Treatment Methods: Product not classified as hazardous waste; dispose of in accordance with local and national regulations
Methods of Disposal: Incineration, landfill, or composting where permitted for biodegradable organic materials
Container Disposal: Rinse containers thoroughly before recycling or disposal, do not reuse for food purposes
Special Precautions: Avoid uncontrolled release to waterways or drains, keep dust levels down during handling of waste
UN Number: Not regulated as hazardous for transport
Transport Hazard Class: Not classified
Packing Group: Not regulated
Special Precautions During Transport: Secure containers to prevent spillage and moisture ingress
Proper Shipping Name: Sodium Carboxymethyl Starch
Environmental Hazards: None identified during transport
International Inventories: Listed in most major chemical inventories (TSCA, EINECS/ELINCS, China IECSC)
Regulatory Status: Not classified as dangerous or hazardous under GHS, OSHA, EU REACH
Labeling Requirements: No significant label required except for dust caution in workplace settings
Restrictions: Subject to food-grade and pharmaceutical regulations if used in such applications
Chemical Safety Assessment: Not required for minor hazard substances in most jurisdictions, but safety data is available for worker protection
