MSDS: 2,2-bis(hydroxymethyl)-1,3-Propanediol

Identification

Product Name: 2,2-bis(hydroxymethyl)-1,3-Propanediol
Synonyms: Trimethylolpropane
Chemical Formula: C6H14O3
Molecular Weight: 134.17 g/mol
CAS Number: 77-99-6
Recommended Use: Used in coatings, polyurethane foams, alkyd resins
Supplier Contact: Emergency contact details available through the chemical manufacturer
Emergency Phone: Provided by supplier, always accessible on the safety data sheet supplied with each shipment
Address: Listed on official invoice or packaging documentation, main manufacturing hub handling requests for information and emergencies

Hazard Identification

GHS Classification: Not classified as hazardous under GHS criteria
Health Hazards: May cause mild skin irritation; prolonged contact could cause dermatitis in sensitive individuals; dust inhalation sometimes causes respiratory discomfort; eye contact can result in moderate irritation
Environmental Hazards: Not expected to cause significant harm to aquatic organisms at typical concentrations; large spills may upset local water chemistry
Signal Word: None required
Pictogram: No symbol specified under current regulations
Hazard Statement: May cause minor irritation on contact

Composition / Information on Ingredients

Chemical Name: 2,2-bis(hydroxymethyl)-1,3-Propanediol
Concentration: >98%
Impurities: Trace amounts of water, possible minor byproducts from production (<1%)
Additives: None indicated; product ships as pure chemical
Stabilizers: None required under normal storage and transport
CAS Registry Numbers: Main component: 77-99-6

First Aid Measures

Inhalation: Move person to fresh air immediately; monitor breathing; seek medical advice if symptoms persist
Skin Contact: Wash thoroughly with soap and water; remove contaminated clothing and launder before reuse; attend to any irritation with a moisturizing lotion; seek medical attention if persistent redness or discomfort occurs
Eye Contact: Rinse eyes gently with water for at least 15 minutes, lifting upper and lower eyelids; remove contact lenses if easy to do so; obtain medical attention for any ongoing irritation
Ingestion: Rinse mouth with water; do not induce vomiting; give plenty of water to drink; consult a physician if discomfort or symptoms develop
Notes to Physician: Treat symptomatically; exposure unlikely to cause delayed or sudden serious systemic effects

Fire-Fighting Measures

Suitable Extinguishing Media: Dry chemical, foam, carbon dioxide, water spray
Unsuitable Media: Avoid high-pressure water jet as it may spread the product
Hazardous Decomposition Products: Carbon oxides released during combustion
Special Protective Equipment for Firefighters: Full protective clothing and self-contained breathing apparatus
Fire and Explosion Hazards: Dust can form explosive mixtures with air; otherwise, substance is considered to have low flammability
Personal Precautions: Avoid inhalation of combustion gases; keep people away from and upwind of fire
Firefighting Instructions: Prevent firewater from entering waterways

Accidental Release Measures

Personal Protection: Wear rubber gloves, safety goggles, and dust mask for bulk spills
Environmental Precautions: Prevent entry into soil, drains, surface and ground water; minimize dust generation and airway exposure
Methods for Cleaning Up: Sweep up without creating dust; collect residue in properly labeled containers for disposal; clear surfaces thoroughly with water after cleanup

Handling and Storage

Handling Precautions: Avoid breathing dust; minimize skin and eye contact; wash hands and exposed skin before eating or drinking
Storage Conditions: Keep container tightly closed; store in cool, dry, well-ventilated area; avoid exposure to excessive heat and direct sunlight
Incompatible Materials: Strong oxidizers; avoid storing alongside acids or bases that may degrade packaging
Hygiene Practices: Regularly clean facilities and surfaces; ensure eye wash and safety showers are accessible in work area
Storage Temperature: Typically recommended below 30°C, away from freezing conditions
Packaging Materials: Use containers and closures approved for industrial chemicals to prevent leaks or contamination

Exposure Controls and Personal Protection

Occupational Exposure Limits: No specific threshold limit values established
Engineering Controls: Use process enclosures or local exhaust ventilation to control dust
Respiratory Protection: NIOSH-approved dust mask recommended for dusty environments
Skin Protection: Chemical-resistant gloves, long sleeves
Eye Protection: Safety glasses or chemical goggles
Environmental Controls: Prevent dust release and emissions to environment
Other Protective Equipment: Emergency eye wash station and safety shower in proximity to work area

Physical and Chemical Properties

Appearance: White crystalline solid
Odor: Odorless or faint
Melting Point: Around 58-61°C
Boiling Point: 295°C (decomposes)
Flash Point: 210°C (closed cup)
Solubility: Highly soluble in water; soluble in alcohols
Density: 1.176 g/cm³ at 20°C
Vapor Pressure: Negligible at room temperature
pH: Not applicable (solid form)
Viscosity: Not applicable
Partition Coefficient (log Kow): —1.0 (estimated)
Evaporation Rate: Not volatile under standard conditions
Other Data: Stable under recommended conditions, forms combustible dust in sufficient quantities

Stability and Reactivity

Chemical Stability: Stable under normal conditions of storage and use
Hazardous Reactions: Unlikely in recommended handling; none expected under normal temperatures
Conditions to Avoid: High heat, open flames, strong oxidizing conditions, moisture ingress
Materials to Avoid: Strong oxidizing agents, strong acids and bases
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide upon combustion
Polymerization: Does not undergo hazardous polymerization

Toxicological Information

Acute Toxicity: Oral LD50 (rat): >5,000 mg/kg; low toxicity by ingestion
Skin Corrosion/Irritation: Mild skin irritant with repeated exposure
Serious Eye Damage/Irritation: Causes mild to moderate eye irritation
Respiratory Sensitization: Not expected to cause symptoms under normal exposure
Skin Sensitization: Not considered a sensitizer based on available data
Chronic Toxicity: No known significant chronic effects from typical workplace exposure
Carcinogenicity: Not listed by IARC, NTP, OSHA
Reproductive Toxicity: No evidence from available data
Mutagenicity: No mutagenic effects identified

Ecological Information

Ecotoxicity: Not expected to present significant risk to aquatic life at working concentrations
Aquatic Toxicity: LC50 (fish, 96h): >100 mg/L
Persistence and Degradability: Biodegradable; likely to break down in natural environments
Bioaccumulation Potential: Low; substance does not concentrate in living organisms
Mobility in Soil: High solubility increases mobility in terrestrial settings
Other Adverse Effects: No known harmful environmental effects at recommended use levels

Disposal Considerations

Waste Treatment Methods: Send waste material to a permitted industrial waste disposal facility
Disposal of Product: Do not discharge to sewers or environment; incinerate or landfill according to local, regional, national, and international regulations
Disposal of Contaminated Packaging: Rinse thoroughly; recycle or incinerate approved containers where possible
Special Precautions For Disposal: Handle in accordance with good industrial hygiene and safety practices

Transport Information

UN Number: Not classified as dangerous goods
Proper Shipping Name: Not regulated for transport
Transport Hazard Class: None assigned
Packing Group: Not applicable
Environmental Hazards: Not environmentally hazardous under transport regulations
Special Precautions for User: Transport in tightly sealed containers to prevent accidental spillage

Regulatory Information

US Regulations (TSCA): Listed
EU Regulations (REACH): Registered; not classified as hazardous
Hazard Categories: Not classified as hazardous under OSHA GHS or EU CLP
Other Country Regulations: Included in chemical inventories for Canada, Japan, Australia, Korea, and China
Workplace Restrictions: Follow occupational exposure guidelines as per local safety standards
Label Information: Name and hazard label should appear as per standard chemical practice