Product Name: Hydroxypropyl Acrylate
Chemical Formula: C6H10O3
Synonyms: 2-Hydroxypropyl Acrylate, HPA
Recommended Use: Monomer for polymer production, chemical intermediate
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CAS Number: 25584-83-2
GHS Classification: Eye Irritant (Category 2A), Skin Sensitizer (Category 1), Acute Toxicity (Oral, Category 4), Acute Toxicity (Dermal, Category 4), Flammable Liquid (Category 3)
Signal Word: Warning
Hazard Statements: Flammable liquid and vapor. Causes skin and serious eye irritation. May cause allergic skin reaction. Harmful if swallowed or in contact with skin.
Pictograms: Flame, Exclamation mark, Health hazard
Precautionary Statements: Keep away from heat, sparks, open flames. Wear protective gloves, eye and face protection. Wash hands thoroughly after handling. Do not eat, drink, or smoke when using this product.
Chemical Name: 2-Hydroxypropyl Acrylate
CAS Number: 25584-83-2
Content (%): 97–100%
Impurities: Trace levels of hydroquinone monomethyl ether (inhibitor), water (<0.5%), acrylic acid (<0.2%)
Other Components: No other hazardous ingredients present above reporting thresholds.
Inhalation: Move person to fresh air. Keep at rest in position comfortable for breathing. Get medical attention if symptoms persist.
Skin Contact: Remove contaminated clothing. Rinse skin immediately with plenty of water for at least 15 minutes. Seek medical attention for persistent irritation or allergic reaction.
Eye Contact: Rinse cautiously with running water for several minutes, holding eyelids open. Remove contact lenses if present and easy to do. Seek medical help promptly.
Ingestion: Rinse mouth. Do not induce vomiting. Never give anything by mouth to an unconscious person. Get immediate medical assistance.
Most Important Symptoms and Effects: Irritation of eyes and skin, possible allergic skin reaction, headache, nausea.
Suitable Extinguishing Media: Alcohol-resistant foam, dry chemical powder, carbon dioxide, water spray (mist)
Unsuitable Extinguishing Media: High volume water jet
Specific Hazards: Vapors may form explosive mixtures with air. Combustion produces irritating and toxic gases including carbon monoxide and carbon dioxide.
Protective Equipment for Firefighters: Wear self-contained breathing apparatus (SCBA) and full protective clothing. Avoid exposure to decomposition products.
Special Precautions: Cool exposed containers with water spray. Prevent run-off from entering waterways.
Personal Precautions: Evacuate area. Eliminate ignition sources. Use suitable protective equipment, including eye protection, gloves, and respirator if vapors are present.
Environmental Precautions: Prevent spillage from entering drains, surface water, or soil. Notify authorities if large spill occurs.
Methods for Cleanup: Absorb with inert material such as sand or vermiculite. Place broken containers and contaminated absorbent in chemical waste drums for disposal. Ventilate area.
Decontamination: After removal, wash spill area with soap and water.
Handling: Keep containers tightly closed and properly labeled. Ground and bond containers during transfer. Avoid inhalation, eye and skin contact. Only handle in well-ventilated areas. Use non-sparking equipment.
Storage: Store in a cool, dry, well-ventilated place away from incompatible materials including acids, oxidizers, and bases. Keep away from sunlight, heat sources, and ignition risks. Maintain inhibitor levels. Protect from moisture.
Packaging Materials: Use stainless steel or glass-lined containers. Polyethylene or polypropylene containers may be used for short-term storage.
Workplace Exposure Limits: No established OSHA or ACGIH TLV specific for HPA. Handle as nuisance dust and monomer vapor.
Engineering Controls: Provide local exhaust ventilation. Use closed system process when possible.
Personal Protection:
– Respiratory: Use organic vapor respirator in poorly ventilated areas.
– Hand Protection: Butyl rubber or nitrile gloves.
– Eye Protection: Chemical splash goggles or safety glasses with side shields.
– Skin Protection: Impervious protective clothing, long sleeves, and closed footwear.
– Hygiene Measures: Wash hands before breaks and after work. Remove contaminated clothing and wash before reuse.
Environmental Controls: Avoid discharges to the environment through engineering controls and proper waste management.
Appearance: Clear, colorless to light yellow liquid
Odor: Characteristic acrylate odor
Melting Point/Freezing Point: -83 °C
Boiling Point: 178–180 °C
Flash Point: 76 °C (closed cup)
Flammability: Flammable liquid
Explosive Limits: Lower 1.6% v/v, Upper 7.0% v/v
Vapor Pressure: 0.07 mm Hg @ 20 °C
Solubility: Mixes with water, methanol, acetone, and most organic solvents
Partition Coefficient (log Kow): 0.31
Auto-ignition Temperature: 312 °C
Viscosity: 3.1 mPa.s @ 25 °C
Chemical Stability: Stable under recommended storage conditions with added inhibitor.
Polymerization: Hazardous polymerization can occur if not stabilized, especially under heat, light, or in presence of peroxides or free radicals.
Incompatible Materials: Strong acids, bases, oxidizers, copper, iron, reducing agents.
Conditions to Avoid: Heat, flames, static discharge, direct sunlight, contamination.
Decomposition Products: Irritating and toxic fumes including carbon monoxide, carbon dioxide, and acrylic acid.
Acute Toxicity: Oral LD50 (rat): ~1800 mg/kg. Dermal LD50 (rabbit): 405 mg/kg. Can cause headache, dizziness, and nausea by inhalation or ingestion.
Chronic Effects: Prolonged skin contact may cause dermatitis and allergic reactions.
Sensitization: Sensitizing upon repeated skin contact.
Eye Damage/Irritation: Causes severe eye irritation.
Carcinogenicity: Not listed as a carcinogen by NTP, IARC, or OSHA.
Mutagenicity: No evidence in standard tests.
Other Data: Prolonged exposure may affect kidney function in laboratory animals.
Ecotoxicity: Toxic to aquatic life. LC50 (96 h, fish): ~10–100 mg/L. Harmful to invertebrates and plants in water exposures.
Persistence and Degradability: Biodegradability moderate; not highly persistent.
Bioaccumulation: Low potential (log Kow < 3).
Mobility in Soil: High solubility increases leaching potential in land spills.
Other Adverse Effects: Avoid release to the environment. No known significant effects or critical hazards beyond acute aquatic toxicity.
Waste Disposal Methods: Dispose of in accordance with local, regional, and national regulations. Incineration in approved facility recommended. Do not dispose by discharge to sewer.
Container Disposal: Triple-rinse empty containers before disposal. Remove all labels and follow hazardous waste protocol.
Precaution: Consult licensed waste disposal contractor for large quantities. Waste code depends on contamination at disposal time.
UN Number: UN 2929
Shipping Name: Flammable Liquid, N.O.S. (Hydroxypropyl Acrylate)
Hazard Class: 3
Packing Group: III
Marine Pollutant: Not designated as marine pollutant under IMDG code.
Label: Flammable (red diamond)
Transport Precautions: Keep drums upright. Secure cargo. Comply with all transport requirements for flammable liquids. Avoid transport with incompatible materials.
TSCA (USA): Listed
REACH (EU): Registered
OSHA: Subject to Hazard Communication Standard
DSL/NDSL (Canada): Listed
WHMIS Classification: B2 (Flammable liquid), D2B (Toxic material causing other effects)
Other Designations: Hazard labels required. Workplace safety training required by law in many jurisdictions. Check local, federal, and international regulations for further restrictions or reporting requirements.
