Material Safety Data Sheet: 2-Acrylamido-2-Methyl-1-Propanesulfonic Acid

Identification

Product Name: 2-Acrylamido-2-Methyl-1-Propanesulfonic Acid
Synonyms: AMPS, 2-Methylacrylamidopropanesulfonic acid
Chemical Formula: C7H13NO4S
CAS Number: 15214-89-8
Intended Use: Used as a monomer in polymer production, superabsorbents, water treatment, oil recovery
Supplier Details: Always reach out to your local supplier or distributor for emergency contact, business address, and up-to-date support channels
Emergency Phone Number: Seek local poison control or emergency services for accidental exposure incidents

Hazard Identification

Classification: Eye irritation, Skin Sensitizer, Not classified as highly hazardous under GHS.
Health Hazards: Contact may result in irritation for skin, eyes, and respiratory tract. Unprotected exposure to powder may cause coughing or discomfort. Known to sensitize upon repeated contact in some individuals.
Physical Hazards: No direct flammability under normal conditions, dust may pose slight explosion risk in confined spaces
Environmental Hazards: Large quantity spills may impact aquatic environments, especially at high concentrations
GHS Label Elements: Exclamation mark for irritation, signal word: “Warning”
Precautionary Statements: Avoid breathing dust, prevent direct contact with skin and eyes, ensure area is ventilated

Composition / Information on Ingredients

Chemical Identity: 2-Acrylamido-2-Methyl-1-Propanesulfonic Acid
Purity: Typically ≥99%
Impurities: Small traces of acrylamide or sodium chloride can show up in some grades, keep an eye out if high purity is necessary
Chemical Family: Sulfonated amides
Molecular Weight: 207.25 g/mol

First Aid Measures

Inhalation: Move out of the dusty area into the open. Breathe fresh air. If symptoms come up like coughing or sneezing, get checked out by a healthcare provider.
Skin Contact: Remove contaminated clothing, wash with running water and soap for at least 15 minutes
Eye Contact: Rinse eyes under water for 15 minutes, lifting eyelids. Skip contact lenses if present. If irritation stays, get medical advice
Ingestion: Wash out mouth, drink plenty of water. If symptoms develop, medical help is recommended
Notes for Doctor: No antidote, treat based on symptoms. Irritation is the main concern

Fire-Fighting Measures

Suitable Extinguishing Media: Use dry chemical powder, CO2, or foam. Water spray can cool off containers
Unsuitable Extinguishing Media: Don't count on direct water jets in case of powder dispersal.
Specific Hazards: Thermal decomposition may release irritating fumes, such as sulfur oxides, nitrogen oxides, and carbon monoxide
Protective Equipment: Firefighters wear self-contained breathing apparatus and full turnout gear
Firefighting Actions: Keep run-off water out of sewers and water sources. Move containers away if conditions make it safe

Accidental Release Measures

Personal Precautions: Use gloves, goggles, and a dust mask. Prevent formation of dust clouds. Isolate from unprotected people
Environmental Precautions: Don’t let large quantities enter waterways or drains. Avoid sweeping dust into stormwater
Cleanup Methods: Scoop up spilled material with minimum dust. Use HEPA vacuum or dampen materials before sweeping up. Place in suitable waste container for proper disposal
Decontamination: Rinse small residues with water, check for local regulations before flushing away

Handling and Storage

Handling: Keep local exhaust ventilation or dust collection going. Handle only with proper safety gear, avoid skin and eye contact. No eating or smoking in work zones. If transferring between containers, remember to ground them to prevent static charges from building up
Storage: Store in tightly-closed containers. Choose dry, cool, well-ventilated space away from incompatible substances like strong oxidizers. Avoid exposure to high humidity, preventing caking and degradation
Incompatible Materials: Strong oxidizers, alkalis and mineral acids may trigger unwanted reactions or decomposition
Packaging Materials: Polyethylene or glass, avoid metal containers for long periods

Exposure Controls and Personal Protection

Occupational Exposure Limits: Not established for this specific compound, but limit dust to safest workplace standards possible, generally 1 mg/m³ for nuisance particulates
Engineering Controls: Use process enclosures, local exhaust ventilation, or other engineering controls to keep airborne levels low
Respiratory Protection: If dust is present, choose an N95 mask or P2 particulate respirator
Eye Protection: Use chemical splash goggles or full-face shield if splashing is likely
Skin Protection: Protect hands with chemical-resistant gloves, use lab coats or coveralls to keep skin protected
Hygiene Measures: Wash hands thoroughly after handling, remove contaminated clothing before eating, drinking, or restroom use

Physical and Chemical Properties

Appearance: White to off-white powder or granules, no strong odor
Odor: Mild, often described as nearly odorless
pH: 2.0 (1% aqueous solution)
Melting Point: Mostly degrades >185 °C, does not melt cleanly
Boiling Point: Not applicable (decomposes before boiling point)
Solubility: Readily soluble in water, slightly soluble in methanol
Density: Approximately 1.4–1.5 g/cm³
Partition Coefficient: log P = -3.7 (water-soluble)
Vapor Pressure: Not significant at room temperature
Decomposition Temperature: Begins to break down above 185 °C
Flash Point: Not considered flammable

Stability and Reactivity

Chemical Stability: Stable at room temperature, away from moisture
Conditions to Avoid: High humidity, open flames, exposure to heat above 185°C
Materials to Avoid: Strong oxidizing agents, strong acids, strong bases, can cause dangerous reactions or breakdown products
Hazardous Decomposition Products: Under fire, gives off carbon monoxide, nitrogen oxides, sulfur oxides, and acrylamide vapors
Polymerization Risk: Not likely under standard handling and use, but heat and certain catalysts could lead to runaway polymerization

Toxicological Information

Acute Toxicity: Based on available studies, relatively low toxicity if swallowed or inhaled
Skin Irritation: Mild irritation for some users, especially after repeated or prolonged contact
Eye Irritation: Can cause serious eye irritation, take extra care during weighing and transfer
Respiratory Effects: Dust inhalation may irritate the upper respiratory tract, especially in confined or unventilated spaces
Chronic Effects: Prolonged exposure could cause skin sensitization (allergic reactions) in sensitive individuals
Carcinogenicity: No evidence for carcinogenic action under normal use
Mutagenicity and Reproductive Toxicity: Animal testing has given no signs of genetic or reproductive harm

Ecological Information

Ecotoxicity: Spills can upset aquatic life, especially in concentrated doses over time, but material is not considered highly hazardous to the environment
Persistence and Degradability: Breaks down slowly in the environment, not readily biodegradable for the main acid form
Bioaccumulation: Given low partition coefficient, no significant build-up in living organisms
Mobility in Soil: Moves rapidly in water, could spread quickly if released in large spills
Other Effects: Acidic runoff possible, keep spills contained and avoid unnecessary water contact

Disposal Considerations

Waste Handling: Collect residues or spillage in proper containers designated for chemical waste
Disposal Methods: Most facilities incinerate under controlled conditions or manage through approved chemical waste firms
Contaminated Packaging: Empty bags or drums must be triple-rinsed and disposed according to local regulations
Environmental Disposal: Never dump into natural waterways, landfills, or sewers without treatment
Regulatory Waste Codes: Always check against local and national codes, in some cases, consult hazardous waste or industrial waste treatment protocols

Transport Information

UN Number: Not classified under main UN dangerous goods listings
Proper Shipping Name: Not regulated as a hazardous material for transport
Transport Hazard Class: None assigned
Packing Group: Not applicable
Special Transport Procedures: Store away from food and animal feed. Prevent packaging from rupturing during movement. Watch out for regional transport regulations, especially for bulk loadings

Regulatory Information

TSCA Status: Listed on U.S. Toxic Substances Control Act inventory
EINECS/ELINCS (EU): Registered as 239-272-5
REACH Status (EU): Registration complete where imported above regulatory thresholds
OSHA Status: Regulated for safe handling and chemical hygiene; not classified as highly hazardous
Other Local Regulations: Different countries may require workplace labeling, risk and safety phrases, or additional reporting for large quantity handling
Major Risk Phrases: Irritant, may cause eye and skin sensitivity. Use personal protective practices at all times