Product Name: 2-Ethyl-2-(Hydroxymethyl)-1,3-Propanediol
Synonyms: Trimethylolpropane, TMP
CAS Number: 77-99-6
EC Number: 201-074-9
Recommended Use: Resin manufacturing, plasticizer production, coatings, lubricants, and adhesives
Supplier: Specialty chemical distributors or chemical manufacturers focusing on industrial intermediates
Emergency Contact: National Poison Control Center or dedicated company emergency line
GHS Classification: Not classified as hazardous under GHS for most uses, though dust inhalation or contact with eyes may cause mild irritation
Signal Word: None required
Hazard Statements: Dust may cause eye and respiratory tract discomfort, skin can react with redness or dryness
Precautionary Statements: Avoid inhaling dust, wash thoroughly after use, minimize dust generation, use personal protection
Label Elements: No pictogram required for general handling, but workplaces should implement routine safe practices
Chemical Name: 2-Ethyl-2-(Hydroxymethyl)-1,3-Propanediol
Content: Pure compound ranges from 99.0% and above in most commercial grades
Impurities: Minor traces of water or related alcohols possible from manufacturing; impurities usually below 1%
General: Move exposed individual away from source to fresh air, rinse skin or eyes with ample water
Inhalation: Remove to fresh air, seek medical attention for respiratory symptoms or if discomfort persists
Skin Contact: Wash skin with soap and water, remove contaminated clothing, seek medical attention for persistent irritation
Eye Contact: Rinse eyes cautiously with water for several minutes, remove contact lenses if present and easy, seek attention if discomfort continues
Ingestion: Rinse mouth, do not induce vomiting, seek medical advice if symptoms appear
Suitable Extinguishing Media: Use water spray, foam, CO2, or dry chemical as appropriate for surrounding materials
Specific Hazards: May form combustible dust concentrations in air; burning produces carbon oxides (CO, CO2)
Protective Equipment: Firefighters should use full protective gear and self-contained breathing apparatus
Additional Advice: Prevent run-off from entering drains or watercourses, as firewater may be slightly polluting
Personal Precautions: Use suitable protective clothing, gloves, safety glasses, and dust mask
Environmental Precautions: Limit entry to waterways or drains, collect spillage, avoid creating dusty atmospheres
Cleaning Methods: Sweep or vacuum up, preferably wetting powder to prevent dust, place in appropriate container for disposal
Handling: Keep containers tightly closed, handle using protection against dust, use in well-ventilated areas, wash thoroughly after handling
Storage: Store in cool, dry, and well-ventilated place away from incompatible substances (strong acids, oxidizers), keep away from sources of ignition
Special Considerations: Industrial users install dust extraction to reduce exposure; containers kept away from moisture and direct sunlight
Occupational Exposure Limits: No established exposure limits in most jurisdictions; general limits for nuisance dust may apply
Engineering Controls: Use local exhaust ventilation or general room ventilation to minimize airborne dust levels
Personal Protective Equipment: Dust mask, gloves, protective goggles, and lab coats during material handling, emergency showers and eyewash stations recommended in work zones
Hygiene Measures: Wash hands after handling and before eating or drinking, clean clothing before reuse
Description: White crystalline solid
Odor: Faint, almost odorless
Molecular Formula: C6H14O3
Molecular Weight: 134.17 g/mol
Melting Point: 57 – 61°C
Boiling Point: 292 – 295°C (decomposes on prolonged heating)
Solubility: Easily soluble in water; limited solubility in organic solvents like alcohols
Density: 1.08 g/cm3 at 20°C
Vapor Pressure: Negligible at room temperature
Flash Point: 160°C (closed cup)
Partition Coefficient (log Pow): Not appreciably bioaccumulative
Chemical Stability: Stable under normal processing and storage conditions
Reactivity: Not reactive with most substances under ambient conditions
Possibility of Hazardous Reactions: Dust explosion risks in finely divided form, avoid contact with strong oxidizers or acids
Hazardous Decomposition Products: Thermal decomposition yields carbon oxides and potentially small quantities of formaldehyde
Incompatible Materials: Strong acids, oxidizing agents, acyl halides
Likely Routes of Exposure: Inhalation, skin and eye contact
Acute Toxicity: Low toxicity by oral and dermal routes, no significant toxic effects in animal studies at typical exposure levels
Irritation: Can cause mild irritation to skin and eyes
Chronic Effects: No known chronic health effects in humans from normal workplace exposures
Carcinogenicity: Not classified as a carcinogen
Mutagenicity: No known mutagenic effects
Other Information: Allergic skin reactions rare, but possible in sensitive individuals
Ecotoxicity: Not expected to be toxic to aquatic life at relevant environmental concentrations, LC50 not reached at typical spill quantities
Persistence and Degradability: Readily biodegradable in water and soil through microbial action
Bioaccumulation: Very low potential for bioaccumulation
Mobility: Soluble in water, mobile in soil and aquatic environments
Additional Information: May cause temporary oxygen depletion if released in large quantities into waterways
Waste Treatment Methods: Collect in suitable containers for offsite disposal according to local regulations, consult municipal or state environmental authorities
Disposal of Packaging: Clean containers may be recycled or disposed of in accordance with hazardous or non-hazardous waste guidelines
Precautions: Avoid release to the environment; landfill and treatment options should minimize dust and leaching
UN Number: Not classified as dangerous for transport under UN, IMO, IATA, or ADR regulations
Proper Shipping Name: Not regulated
Transport Hazard Class: None
Packing Group: Not assigned
Environmental Hazards: Not marine pollutant
Precautions for Transport: Ensure containers are well secured to minimize spillage or damage during transit
Inventory Listings: Listed on TSCA (US), EINECS (EU), AICS (Australia), DSL (Canada), ENCS (Japan)
Hazard Labeling: Not subject to significant labeling under GHS, EU CLP, or OSHA HazCom; standard workplace hazard communication required
Other Regulation: OSHA-compliant Safety Data Sheets and training for workers in facilities handling the material; no specific SARA or CERCLA thresholds
Restriction Status: No major use restrictions identified globally, subject to local, national, or regional chemical safety practice standards
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