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Chemical Name: Sodium Polyacrylate
Common Names: Waterlocking Agent, Superabsorbent Polymer
CAS Number: 9003-04-7
EC Number: 200-289-5
Recommended Use: Absorbent in diapers, hygiene products, water retention in agriculture, spill containment
Supplier: Manufacturer or distributor contact information provided on label
Emergency Contact: Emergency telephone number from supplier’s documentation
Classification: Substance not classified as hazardous under current GHS guidelines
Physical Hazards: Fine particles may present a risk of dust formation
Health Hazards: Inhalation of dust can irritate nose, throat and respiratory tract; direct eye contact causes mechanical irritation
Environmental Hazards: Not classified as environmentally hazardous
Label Elements: No pictograms or precautionary statements required for intact polymer
Precautionary Statements: Avoid creating and breathing dust; use with adequate ventilation
Chemical Composition: Sodium Polyacrylate (crosslinked)
Content: ≥ 90% by weight
Impurities: May include small quantities of acrylic acid (monomer), sodium acrylate
Structure: Cross-linked polymer with sodium neutralized functional groups
Inhalation: Move person to fresh air; encourage slow, deep breathing; consult a physician if symptoms persist
Eye Contact: Rinse thoroughly with water for several minutes, lifting eyelids; seek medical attention if irritation continues
Skin Contact: Remove contaminated clothing; wash with soap and water; consult medical care for persistent irritation
Ingestion: Rinse mouth; drink water if conscious; seek medical guidance if large quantity ingested or symptoms develop
General Advice: No chronic symptoms expected under normal use, but ensure workplace exposure and first aid training
Suitable Extinguishing Media: Water spray, foam, dry powder, carbon dioxide
Fire Hazards: Polymer itself not highly flammable, but fine dust poses combustion risk in presence of ignition sources
Firefighting Precautions: Wear self-contained breathing apparatus and full protective gear
Decomposition Products: Thermal decomposition can produce carbon oxides, nitrogen oxides and low molecular weight hydrocarbons
Special Procedures: Remove contaminated firefighting water and dispose according to regulations
Personal Precautions: Use dust masks, eye protection and gloves; avoid breathing dust
Environmental Precautions: Prevent entry into drains and watercourses; collect residues for disposal
Spill Cleanup Methods: Sweep or vacuum material into a suitable container, using tools that do not create dust; wash area with water to clear residues
Waste Containment: Store collected material in sealed containers ready for disposal, in accordance with national or regional regulations
Emergency Procedures: Restrict access to spill area until cleanup is complete and ventilate area if necessary
Handling: Minimize dust generation; handle with care to avoid contact with eyes and skin; use clean, dry utensils or automated feed systems
Technical Measures: Local exhaust recommended where dust may be present
Safe Storage: Store in cool, dry, well-ventilated places; keep containers sealed to avoid moisture absorption
Incompatible Materials: Avoid oxidizers and strong acids
Storage Conditions: Keep away from direct sunlight, heat sources, and ignition points; protect from water and humidity
Occupational Exposure Limits: No established TLV or PEL, but airborne dust should be controlled below 10 mg/m³ (total dust, inhalable fraction)
Engineering Controls: Use local exhaust ventilation and general room ventilation
Personal Protective Equipment: Safety glasses or goggles to prevent dust in eyes, gloves for skin protection, dust masks or respirators when airborne concentrations increase, coveralls or lab coats as needed
Hygiene Practices: Wash hands thoroughly after handling; do not eat, drink or smoke during use
Appearance: White to off-white granules or powder
Odor: Odorless
pH (aqueous solution): Approximately 6 to 8
Melting Point: Decomposes before melting
Boiling Point: Not applicable
Vapor Pressure: Not applicable
Solubility: Swells in water, forming a gel; insoluble
Bulk Density: 0.3–0.9 g/cm³
Particle Size: 100–850 microns typical, product specific
Other: Stable under normal use and conditions, absorbs several hundred times its mass in water
Chemical Stability: Stable under normal handling and storage conditions
Hazardous Reactions: None under intended use
Incompatible Materials: Strong acids, strong bases, oxidizing agents
Decomposition: Thermal decomposition can release irritating fumes, carbon monoxide, carbon dioxide
Polymerization: Will not occur under recommended storage and handling
Acute Toxicity: Low toxicity if ingested or inhaled; does not accumulate in the body
Skin Irritation: Not expected to irritate skin under normal use; repeated exposure may cause dryness
Eye Irritation: Mechanical action may cause irritation
Inhalation Effects: Dust may irritate nose, throat, and upper respiratory system
Chronic Effects: No known chronic health effects; no evidence of mutagenicity, carcinogenicity, or reproductive toxicity in available studies
Sensitization: No known sensitization effects reported in humans
Environmental Behavior: Very low toxicity to aquatic and terrestrial organisms
Mobility: Swells and forms a gel in water; unlikely to leach
Persistence and Degradability: Not readily degradable, remains in environment as a stable polymer
Bioaccumulation Potential: Not expected to bioaccumulate
Aquatic Toxicity: No adverse effects documented at expected environmental concentrations
Other Hazards: If released excessively in aquatic environments, potential to alter water absorption balance for soil and sediments needs consideration
Waste Treatment Methods: Dispose in accordance with local, regional, and national regulations
Product Disposal: Incinerate or landfill product in permitted facilities
Packaging Disposal: Triple rinse containers, then offer for recycling or reconditioning, or dispose as non-hazardous waste according to facility capabilities
Special Precautions: Do not release product into sewers or natural bodies of water in a way that could block drains or damage treatment systems
UN Number: Not classified as hazardous for transportation
UN Proper Shipping Name: Not regulated
Transport Hazard Class: None
Packing Group: Not applicable
Labels: No special requirements
Special Precautions: Avoid exposure of packages to moisture during shipping; secure loads to avoid spillage of fine powder
Safety, Health, and Environmental Regulations: Product not subject to labeling according to EU Regulation (EC) 1272/2008 (CLP/GHS); ingredients meet requirements of US TSCA and Canadian DSL inventory
OSHA: Not classified as hazardous under OSHA Hazard Communication Standard
SARA Title III: Not listed
REACH Registration: Not required for high-molecular weight polymers
Other Country Regulations: Consult local, national, or regional authorities for specific guidance regarding handling and safety
