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Chemical Name: 2-Acrylamido-2-methylpropanesulfonic acid
Common Names: AMPS, 2-AMPS
Molecular Formula: C7H13NO4S
Appearance: White to off-white crystalline solid
Odor: Odorless
CAS Number: 15214-89-8
Main Uses: Used in water treatment, polymer synthesis, adhesives, textiles
Physical State: Solid
Hazard Class: Irritant
Major Acute Symptoms: Skin and eye irritation, redness, discomfort on contact
Routes of Exposure: Inhalation, skin and eye contact
Long-Term Risks: Prolonged exposure may worsen skin or eye irritation; dust may cause respiratory discomfort
Main Ingredient: 2-Acrylamido-2-methylpropanesulfonic acid, purity usually above 98%
Relevant Impurities: Trace quantities of acrylamide and other related compounds may be present, depending on source and manufacturing process
Eye Contact: Flush eyes immediately with water for at least fifteen minutes; remove contact lenses if present; seek medical attention if irritation persists
Skin Contact: Rinse under running water and remove contaminated clothing; wash with soap; get medical attention if discomfort continues
Inhalation: Remove to fresh air; seek medical advice for difficulty breathing or persistent cough
Ingestion: Rinse mouth thoroughly; drink water, do not induce vomiting; consult a doctor for any symptoms or large amounts swallowed
Flammability: Not highly flammable
Suitable Extinguishing Media: Use dry chemical, CO2, water spray, or foam
Hazardous Combustion Products: Can generate toxic fumes like nitrogen oxides, sulfur dioxide, carbon monoxide on burning
Fire Precautions: Wear self-contained breathing apparatus and protective gear in event of fire; prevent contaminated runoff from entering drains or waterways
Personal Protection: Use gloves, safety goggles, dust mask in case of spill
Containment: Sweep up spilled material without raising dust; shovel into labeled containers for disposal
Environmental Precaution: Prevent entry to sewers or surface water; ventilate area well
Clean-Up Methods: Wash area with water after initial clean, keeping runoff from uncontaminated ground
Handling: Avoid generating dust; always handle with clean gloves, in a well-ventilated area
Safe Storage: Store in a cool, dry place away from strong oxidizers, acids, and heat; keep container tightly sealed; prevent moisture uptake
Engineering Controls: Maintain good mechanical ventilation; local exhaust in dusty operations helps
Personal Protective Equipment: Use safety goggles, chemical-resistant gloves, protective clothing; dust mask or respirator where dust may form
Hygiene Measures: Wash hands thoroughly after handling; take off contaminated clothing before breaks or leaving work
Physical State: Solid, crystalline
Color: White to off-white
Melting Point: Above 185°C (decomposes)
Solubility: Soluble in water
pH (1% solution): Acidic
Odor: Odorless
Bulk Density: Around 0.70–0.80 g/cm3
Chemical Stability: Stable under normal temperatures and recommended storage
Hazardous Reactions: Unstable against strong oxidizing agents, strong acids; exothermic reaction possible
Decomposition: Thermal breakdown releases hazardous gases like oxides of sulfur, nitrogen, carbon
Incompatible Materials: Avoid contact with oxidizers and strong acids
Acute Effects: Causes eye and skin irritation; inhalation of dust may cause respiratory symptoms
Ingestion: May result in gastrointestinal discomfort; unlikely to cause acute systemic toxicity in small quantities
Chronic Effects: Prolonged or repeated skin contact can cause dermatitis
Sensitization: Rare reports of skin sensitization, no reliable data to confirm risk
Carcinogenicity and Mutagenicity: Not known to be carcinogenic or mutagenic based on available animal studies; minimal acrylamide impurities may increase risk, albeit well below occupational exposure limits
Aquatic Toxicity: Limited studies show low acute toxicity for aquatic organisms; not classified as environmentally hazardous at typical usage levels
Biodegradability: Moderately biodegradable in soil and aquatic environments
Persistence and Mobility: High water solubility makes it mobile in aquatic systems; unlikely to bioaccumulate
Environmental Precaution: Avoid uncontrolled releases, especially into bodies of water as a precaution for sensitive aquatic life
Waste Treatment Methods: Dispose as hazardous chemical waste, following local environmental and safety regulations
Small Quantities: Can often be diluted with water and neutralized before disposal, following guidance from environmental authorities
Packaging: Containers should be triple rinsed and disposed or recycled per regulations
UN Number: Not classified as dangerous goods according to most international regulations
Proper Shipping Name: Not regulated for transport
Transport Conditions: Ensure container integrity, protect from moisture and mechanical shocks; avoid transport with incompatible or reactive chemicals
Chemical Inventory: Listed in main chemical inventories such as TSCA (USA), EINECS/REACH (EU), DSL (Canada), and similar in other territories
Workplace Limits: No specifically assigned occupational exposure limits for 2-Acrylamido-2-methylpropanesulfonic acid; dust should be minimized according to general nuisance dust standards
Labeling: Hazard labeling required in line with GHS; warning symbols for acute toxicity (irritation to skin and eyes) often apply
Restrictions: Not considered a controlled substance, but must be managed according to local environmental and workplace laws
