Chemical Name: 2-Methyl-1,3-Propanediol
CAS Number: 2163-42-0
Synonyms: MPG-2, 2MPD, 2-Methylpropanediol
Product Use: Used as a chemical intermediate, in polymer production, as a humectant, and in coatings
Supplier Details: Manufacturer or distributor details including address and emergency contact numbers
Emergency Telephone: Supplier’s 24-hour personnel contact information for advice in emergencies
GHS Classification: Not classified as hazardous under GHS criteria; slight eye and skin irritation possible
Signal Word: None required
Hazard Statements: May cause minor irritation to eyes and skin
Precautionary Statements: Avoid direct contact with eyes and skin, wash thoroughly after handling
Potential Health Effects: Brief irritation with overexposure, not linked to chronic health effects
Environmental Hazards: Expected to have minimal environmental impact under normal handling conditions
Chemical Composition: 2-Methyl-1,3-Propanediol
Concentration: Greater than 98% pure by weight
Other Components: Minor impurities may include water and trace process-related materials below 2%
Eye Contact: Rinse gently with water for at least 15 minutes, lift eyelids; seek medical attention if redness or pain continues
Skin Contact: Wash affected area with soap and water, remove contaminated clothing; medical advice needed for persistent irritation
Inhalation: Move person to fresh air, provide support if breathing is uncomfortable; call for medical attention on continued symptoms
Ingestion: Rinse mouth, seek medical advice, do not induce vomiting unless instructed by medical professionals
Note to Doctor: Treat symptoms, no specific antidote known
Suitable Extinguishing Media: Use water mist, alcohol-resistant foam, dry chemical, or carbon dioxide
Unsuitable Extinguishing Media: Full water jet in isolated areas as splash may spread liquid
Hazardous Combustion Products: May release carbon monoxide, carbon dioxide, formaldehyde vapors in fire conditions
Fire Fighting Guidance: Firefighters wear NIOSH/MSHA-approved self-contained breathing apparatus and full protective gear
Specific Hazards from Chemical: Decomposition under fire may lead to irritant fumes in unventilated spaces
Additional Advice: Cool drum/container with water spray if exposed to fire to prevent rupture
Personal Precautions: Clear unnecessary personnel from area, ventilate, avoid skin/eye contact, use personal protection
Spill Cleanup Methods: Absorb with suitable inert material such as sand, contain leak, place in properly labeled drums for disposal
Environmental Precautions: Prevent runoff into drains or waterways, notify authorities if spill enters environment
Decontamination: Wash spill area with water and detergent once material is cleaned up, ventilate area well
Safe Handling: Avoid breathing vapor or mist, avoid repeated contact with skin and eyes, use proper ventilation
Technical Measures: Work with local exhaust or greater ventilation in enclosed spaces, use splash-proof goggles and gloves
Storage Conditions: Keep container tightly closed in cool, dry, well-ventilated area
Incompatible Materials: Strong oxidizers, acids
Other Precautions: Use only non-sparking tools, ground containers during transfer to reduce static hazards
Exposure Limits: No international or local occupational limit values assigned
Engineering Controls: Provide general or local exhaust; keep air concentrations below nuisance limits
Personal Protective Equipment: Wear chemical safety goggles, impervious gloves, and suitable protective clothing
Respiratory Protection: Use NIOSH-approved organic vapor respirator if misting or high vapor levels possible
Other Protective Measures: Wash hands after handling, do not eat or drink nearby, keep out of reach of children
Appearance: Colorless, viscous liquid
Odor: Mild, characteristic
Odor Threshold: No data available
pH: 6.5–7.5 (neat or in solutions)
Melting Point: Approximately –54°C
Boiling Point: About 208°C
Flash Point: 127°C (closed cup)
Evaporation Rate: Not determined
Flammability: Not highly flammable
Vapor Pressure: Less than 0.01 mm Hg at 20°C
Density: 1.03–1.05 g/cm³ at 20°C
Solubility: Completely soluble in water
Partition Coefficient: log Kow approximately –0.37
Auto-ignition Temperature: Greater than 300°C
Decomposition Temperature: Not established
Viscosity: 40–60 mPa·s at 25°C
Chemical Stability: Stable under normal storage and handling conditions
Reactivity: No unusual reactivity, inert to most materials in normal use
Conditions to Avoid: Avoid strong heat, sources of ignition, and contamination with incompatible substances
Incompatible Materials: Strong oxidizers, concentrated acids
Hazardous Decomposition Products: Carbon oxides and aldehydes can form with strong heating or incomplete burning
Polymerization: Does not self-polymerize
Acute Toxicity: Oral LD50 (rat) greater than 5,000 mg/kg, indicating low acute toxicity
Skin Corrosion/Irritation: May cause mild, reversible irritation with prolonged or repeated contact
Eye Damage/Irritation: Occasional slight redness or watering
Respiratory Effects: Inhalation unlikely except for vapor/mist at high temperature or spray; nose/throat irritation possible
Sensitization: Not identified as a skin sensitizer
Mutagenicity and Carcinogenicity: Not listed by IARC, NTP or OSHA as a known or probable carcinogen, mutagenicity studies negative
Reproductive Toxicity: No reproductive toxicity or teratogenicity evident in available animal studies
Ecotoxicity: Practically non-toxic to aquatic life; fish (LC50 >1,000 mg/L, 96h), daphnia, and algae studies show limited short-term harm
Persistence/Degradability: Biodegradable under aerobic and anaerobic conditions
Bioaccumulative Potential: Low, based on octanol-water partitioning
Mobility in Soil: Mobile in water, does not bind strongly to soil particles
Other Adverse Effects: Does not contain hazardous metals, organics, or ozone depleters
Product Disposal: Handle as non-hazardous industrial waste unless contaminated, send to approved landfill or incinerator
Container Disposal: Rinse empty containers thoroughly, recycle or dispose in compliance with local regulations
Precautions: Prevent soil and water contamination during disposal, consult state/local/environmental authorities
UN Number: Not regulated for transport under ADR/RID, IMDG, IATA
Proper Shipping Name: Not regulated
Transport Hazard Class: None assigned
Packing Group: None assigned
Environmental Hazards: Not defined as marine pollutant
Transport Labels: No marking required for land, sea, or air shipment
Special Precautions: Ship in tightly closed, leak-free containers, keep away from incompatible cargo and open flames
U.S. Regulations: Listed on TSCA Inventory, not classified as hazardous substance under SARA Title III
EU Regulations: Not regulated under REACH restrictions, not labeled as dangerous under CLP/GHS
Canadian Regulations: Listed on DSL/NDSL, not subject to priority pollutant/tracking
Other Global Listings: Australia (AICS), Japan (ENCS), China (IECSC), Korea (ECL), New Zealand (NZIoC), Philippines (PICCS) all include this substance
Workplace Labeling: General chemical labeling required, no specific workplace hazard codes
Restrictions: Avoid uncontrolled release, apply normal chemical hygiene practices
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