Product Name: 2-Hydroxyethyl Methacrylate
Synonyms: HEMA, Hydroxyethyl-2-methacrylate
Chemical Formula: C6H10O3
CAS Number: 868-77-9
Manufacturer: Varies; commonly produced by industrial chemical suppliers
Intended Use: Used in polymer production, adhesives, dental materials, and coatings
Emergency Contact: Refer to local supplier or CHEMTREC for emergencies
Contact Details: Refer to product label and supplier contact information
Physical State: Liquid
Color: Clear to light yellow
Odor: Slight ester-like odor
Flammability: Flammable liquid
Acute Effects: Skin and eye irritant, causes allergic skin reactions, harmful if inhaled
Chronic Effects: Prolonged exposure leads to respiratory sensitization, dermatitis
OSHA Hazard Class: Eye irritant, skin sensitizer, combustible
GHS Classification: Skin Irritant (Category 2); Eye Irritant (Category 2A); Skin Sensitizer (Category 1); Flammable Liquids (Category 3)
Signal Word: Warning
Hazard Statements: Causes skin and serious eye irritation, may cause allergic skin reaction, may cause respiratory irritation, combustible liquid
Chemical Name: 2-Hydroxyethyl Methacrylate
Concentration: 95-100%
CAS Registry Number: 868-77-9
Impurities: Trace stabilizers such as methoxyhydroquinone
Other Components: Monomer stabilizer (often less than 0.5%)
Inhalation: Remove person to fresh air, keep comfortable, seek medical attention for respiratory symptoms
Skin Contact: Remove contaminated clothing, wash contaminated skin with plenty of soap and water, get medical advice for persistent irritation
Eye Contact: Rinse eyes immediately with plenty of water, remove contact lenses if present, continue rinsing for at least 15 minutes, get medical attention
Ingestion: Rinse mouth, do not induce vomiting, drink water if conscious, seek medical help
Most Important Symptoms: Redness, itching, irritation, allergic reactions, respiratory distress
Notes to Physician: Treat symptomatically, consider effects from dermal exposure and inhalation
Suitable Extinguishing Media: Alcohol-resistant foam, dry chemical, carbon dioxide, water spray
Unsuitable Media: Direct water jet may spread fire
Specific Hazards: Vapors are heavier than air, can travel to ignition sources, container may explode if heated
Combustion Products: Carbon monoxide, carbon dioxide, irritating fumes
Firefighting Instructions: Use water spray to cool exposed containers, prevent runoff from entering drains
Protective Equipment: Use self-contained breathing apparatus, chemical protective clothing
Personal Precautions: Evacuate area, wear protective equipment and avoid inhalation of vapors or skin contact
Environmental Precautions: Prevent spill from reaching waterways, sewers, soil
Methods for Containment: Contain spilled liquid with inert absorbent (sand, earth)
Methods for Cleanup: Collect spilled material in containers for disposal, ventilate area
Decontamination: Rinse spill site with water after material pickup
Safe Handling: Work in well-ventilated areas, avoid inhaling vapors and droplets, wear appropriate protection
Handling Precautions: Avoid contact with eyes, skin, and clothing, wash thoroughly after use
Storage Conditions: Store in tightly closed, properly labeled containers
Storage Temperature: Keep away from heat, sparks, flames, and direct sunlight, protect from freezing
Incompatibilities: Strong oxidizers, acids, bases
Special Storage Requirements: Store with stabilizer, keep container upright
Occupational Exposure Limits: No ACGIH TLV assigned, minimize exposure as low as possible
Engineering Controls: Local exhaust ventilation, general ventilation to limit vapor accumulation
Personal Protective Equipment: Chemical-resistant gloves (nitrile recommended), splash goggles, protective clothing
Respiratory Protection: Use organic vapor/particulate respirator if ventilation inadequate
Hygiene Measures: Wash hands before eating or drinking, remove contaminated clothing and launder
Physical State: Liquid
Appearance: Colorless to light yellow
Odor: Faint ester odor
Odor Threshold: Not established
pH: Not applicable (neutral in water)
Melting Point: Approx. -12°C
Boiling Point: Approx. 213°C
Flash Point: 97°C (closed cup)
Evaporation Rate: Slower than ether
Flammability: Combustible
Explosion Limits: Not established
Vapor Pressure: 0.04 mmHg at 20°C
Vapor Density: Approx. 3 (air = 1)
Relative Density: 1.07 g/cm³ at 20°C
Solubility: Miscible with water
Partition Coefficient (log Kow): 0.42
Auto Ignition Temperature: 435°C
Decomposition Temperature: Above 200°C
Viscosity: 6-10 mPa·s at 25°C
Chemical Stability: Stable with added inhibitor, polymerizes if heated or in presence of peroxides
Conditions to Avoid: Excessive heat, freezing, exposure to light
Materials to Avoid: Free radical initiators, oxidizing agents, acids, bases, peroxides
Polymerization: May occur if monomer is uninhibited or heated
Decomposition Products: Methacrylic acid, carbon oxides, unknown toxic fumes
Routes of Exposure: Skin contact, inhalation, eye contact, swallowing
Acute Toxicity: Oral LD50 (rat): > 5,000 mg/kg; Dermal LD50 (rabbit): > 3,000 mg/kg
Chronic Toxicity: Sensitization with repeated contact, dermatitis
Carcinogenicity: Not classified as carcinogen by IARC, NTP, OSHA
Mutagenicity: Negative in standard assays
Reproductive Toxicity: No evidence based on animal studies
Other Effects: Allergic skin reaction, respiratory irritation possible with prolonged exposure
Ecotoxicity: Harmful to aquatic organisms, possible long-term adverse effects in aquatic environment
Persistence and Degradability: Partially biodegradable in soil and water, breaks down under aerobic conditions
Bioaccumulation Potential: Low, expected log Kow supports low potential
Mobility in Soil: High, due to water solubility
Other Adverse Effects: Releases monomer, risk to aquatic life if discharged
Waste Disposal Methods: Dispose as hazardous chemical waste, follow local regulations
Packaging Disposal: Triple rinse containers before disposal or recycling, puncture or crush to prevent reuse
Precautions: Avoid discharge to drains or waterways, incinerate or landfill in authorized facility
Additional Information: Check applicable regional, national, and local regulations
UN Number: 1993
UN Proper Shipping Name: Flammable liquid, n.o.s. (contains 2-Hydroxyethyl Methacrylate)
Transport Hazard Class: 3 (Flammable liquid)
Packing Group: III
Label: Flammable liquid
Special Precautions: Secure containers upright, away from heat or sources of ignition
Environmental Hazards: Not a marine pollutant
Transport in Bulk: Follow regulations according to vessel or vehicle type
TSCA: Listed
DSL/NDSL: Listed in Canadian inventories
REACH: Registered substance in EU, subject to restrictions
SARA Title III: Not listed under Section 302 or 313, on Section 311/312 for acute health, chronic health, fire
California Proposition 65: Not listed
Other International Regulations: Complies with Australia AICS and Japan ENCS
Labeling Requirement: Comply with hazard communication labeling as specified by OSHA or GHS
