Product Name: N-Propyl Methacrylate
Chemical Formula: C7H12O2
CAS Number: 925-90-6
EC Number: 213-118-5
Recommended Use: Intermediate for chemical synthesis, monomer for polymer production
Supplier: Refer to purchase documentation
Emergency Contact: Refer to local regulatory guidelines, region-specific poison control
Hazard Classification: Flammable liquid (Category 3), Acute toxic (oral, Category 4), Skin irritation (Category 2), Eye irritation (Category 2A), Specific target organ toxicity (single exposure) (Category 3)
Label Elements: Flammable, toxic on ingestion, skin and eye irritant, may cause respiratory irritation
Signal Word: Warning
Hazard Statements: Flammable liquid and vapor, harmful if swallowed, causes skin and eye irritation, may cause drowsiness or dizziness
Precautionary Statements: Avoid breathing dust or vapor, keep away from ignition sources, wash skin thoroughly after handling, use only outdoors or in well-ventilated area, wear protective gloves/protective clothing/eye protection/face protection
Chemical Name: N-Propyl Methacrylate
Synonyms: Propyl 2-methyl-2-propenoate
Concentration: ≥99%
Impurities: Small percentages of water, hydroquinone or similar inhibitors, trace solvents
Additives: Stabilized with 10–20 ppm hydroquinone or MEHQ (Monomethyl ether hydroquinone) for safe storage
Inhalation: Move to fresh air, keep quiet, monitor breathing, seek immediate medical attention if symptoms develop
Skin Contact: Remove contaminated clothing, wash with plenty of soap and water, get medical aid for persistent irritation
Eye Contact: Rinse cautiously for several minutes with clean water, remove contact lenses if present, call a physician
Ingestion: Rinse mouth, do not induce vomiting, get immediate medical help
Note for Rescuers: Avoid exposure without personal protective equipment
Suitable Extinguishing Media: Dry chemical, foam, CO2, water spray (do not use water jet)
Specific Hazards: Vapors form explosive mixture with air, toxic gases such as carbon oxides and irritating acrid fumes on combustion
Protective Equipment for Firefighters: Full protective gear, self-contained breathing apparatus
Advice for Firefighters: Cool containers with water spray, keep out of low-lying areas where vapors may accumulate, avoid inhalation of combustion products
Special Procedures: Avoid run-off entering drains or watercourses
Personal Precautions: Evacuate area, ventilate, wear respiratory and skin protection
Environmental Precautions: Prevent entry into sewers or waterways, contain spill
Cleanup Methods: Use inert absorbent (sand, diatomaceous earth), collect in containers for disposal, decontaminate site, ventilate area
Special Precautions: Eliminate ignition sources, do not breathe fumes
Handling: Use only in well-ventilated areas, avoid contact with skin and eyes, do not breathe vapor, ground containers, use explosion-proof equipment, keep away from heat and sources of ignition
Storage Conditions: Store in tightly closed, cool, dry, well-ventilated area, away from direct sunlight, heat, strong oxidizers, acids, alkalis, and sources of ignition. Inhibitor needs oxygen to function; containers should not be completely full.
Incompatible Materials: Acids, bases, oxidizing agents, peroxides
Storage Temperature: 2 – 8°C for long-term stability
Packaging Materials: Stainless steel, glass, polyethylene; avoid copper alloys
Occupational Exposure Limits: Not established for N-Propyl Methacrylate, keep exposure as low as reasonably achievable, use adopted limits for similar acrylates
Engineering Controls: Local exhaust ventilation, closed handling systems, explosion-proof equipment
Personal Protective Equipment: Chemically resistant gloves (nitrile, butyl rubber), splash goggles or face shield, protective clothing (lab coat, apron), use respirators with organic vapor cartridges when threshold limits may be exceeded
Hygiene Measures: Wash hands before breaks and after finishing work, remove and wash contaminated clothing
Appearance: Clear, colorless liquid
Odor: Pungent, characteristic acrylate odor
Odor Threshold: Not determined
pH: Not applicable (non-aqueous)
Melting Point: −65°C
Boiling Point: 149–151°C
Flash Point: 44°C (closed cup)
Flammability: Flammable liquid
Vapor Pressure: 0.5 mm Hg at 20°C
Vapor Density: 4.0 (air = 1)
Relative Density: 0.89–0.91 g/cm³
Solubility: Insoluble in water (<1 g/L), miscible with most organic solvents
Partition Coefficient: log Kow 2.02
Autoignition Temperature: 290°C
Decomposition Temperature: Not determined
Viscosity: Moderately viscous
Evaporation Rate: Not determined
Chemical Stability: Stable under recommended handling and storage, susceptible to spontaneous polymerization particularly in sunlight or on exposure to heat, oxygen stabilizes with inhibitor
Conditions to Avoid: High temperature, direct sunlight, absence of inhibitor or oxygen, confined storage
Incompatible Materials: Strong oxidizers, reducing agents, acids, bases, peroxides, free radical initiators
Hazardous Decomposition: Carbon monoxide, carbon dioxide, irritating acrylate vapors
Hazardous Reactions: May polymerize rapidly if contaminated, overheated, or exposed to light or free radicals
Routes of Exposure: Inhalation, skin absorption, ingestion, eye contact
Acute Effects: Irritation to eyes, skin, respiratory tract; ingestion may cause gastrointestinal distress, central nervous system effects (headache, dizziness)
Chronic Effects: Sensitization with repeated exposure, dermatitis, potential effects on kidneys and liver in animal studies
LD50 (Oral, rat): ~870 mg/kg
LD50 (Dermal, rabbit): >5,000 mg/kg
LC50 (Inhalation, rat): Not available; similar monomers: 11 mg/L (4h)
Carcinogenicity: Not listed by IARC, NTP, OSHA as a carcinogen
Mutagenicity: Not identified as a mutagen based on available studies
Reproductive Toxicity: No evidence from animal data
Symptoms: Eye and skin irritation, drowsiness, dizziness, nausea, allergic reactions
Toxicity (Aquatic): Harmful to aquatic life, fish LC50 (96h): ~10–20 mg/L
Persistence and Degradability: Partially biodegradable; risk of long-term aquatic effects if large quantities spill
Bioaccumulation: Potential medium, log Kow 2.02 indicates moderate bioconcentration potential
Mobility in Soil: Low mobility due to low water solubility, risk of surface water contamination
Other Adverse Effects: May form hazardous polymers in the environment
Disposal Methods: Incinerate in a chemical incinerator equipped with afterburner and scrubber, dispose as hazardous waste per regulations
Waste Codes: In keeping with local, national, international regulations for toxic organic chemicals
Contaminated Containers: Triple rinse, puncture and dispose as hazardous waste
Precautions: Do not allow product to reach drains, soil, surface water or ground water
UN Number: 2283
UN Proper Shipping Name: N-Propyl methacrylate
Class: 3 (Flammable liquids)
Packing Group: III
Labeling: Flammable liquid
Marine Pollutant: No, but harmful to aquatic life
Special Transport Precautions: Keep containers tightly closed, upright, and away from oxidizers and heat during transport, comply with regulations on shipping flammable liquids
TSCA (USA): Listed
EINECS (EU): Listed
REACH Status: Registered or pre-registered depending on tonnage
WHMIS (Canada): B2 (Flammable Liquid); D2B (Toxic Material Causing Other Toxic Effects)
SARA 313 (USA): Not subject to the reporting requirements
Hazard Symbol(s): F (Flammable), Xi (Irritant)
Other Regulations: Complies with OSHA Hazard Communication Standard, GHS classification
