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Chemical Name: Di(propylene glycol) methyl ether
Common Names: DPGME, Dowanol DPM
CAS Number: 34590-94-8
Physical Appearance: Clear, colorless liquid
Odor: Mild, ether-like
Common Applications: Solvent in paints, coatings, inks, and cleaning agents; carrier fluid in industrial settings
Synonyms Used in Industry: Propylene glycol methyl ether acetate
Hazard Classes: Flammable liquid (if misted or heated), irritant for eyes and skin
Signal Word on Labels: Warning
Potential Health Effects: Irritation to eyes and respiratory tract with prolonged exposure, skin dryness or cracking
Main Routes of Exposure: Skin contact, inhalation
Acute Risks: Dizziness or headache from inhalation of high vapor concentrations
Chronic Risks: Reports point to reversible effects on blood if exposure remains uncontrolled for longer periods
Environmental Risks: Low, though improper disposal can contaminate groundwater
Special Precautions Needed: Proper ventilation, minimizing prolonged contact
Active Ingredient: Di(propylene glycol) methyl ether (nearly pure, over 95% in commercial form)
Potential Impurities: Trace amounts of related glycols and ethers
Stabilizers/Preservatives: None generally added
Physiological Impact: Main concern involves the glycol ether rather than incidental impurities
Inhalation: Move person to fresh air, loosen tight clothing, medical attention if breathing remains difficult
Skin Contact: Wash area with soap and water, remove contaminated clothing, pay attention to signs of rash or redness
Eye Contact: Rinse for several minutes under running water, keep eyelids open, seek medical care for redness or pain
Ingestion: Rinse mouth and drink water if conscious, do not induce vomiting, get prompt medical support
Flammability: Forms flammable vapor-air mixtures at elevated temperatures
Suitable Extinguishing Media: Alcohol-resistant foam, CO2, dry chemical powders
Unsuitable Media: Avoid high-pressure water jets that spread liquid
Special Hazards: May form toxic vapors under combustion including carbon monoxide and organic compounds
Protective Equipment: Full turnout gear, positive-pressure breathing apparatus
Personal Protection: Use impervious gloves, safety goggles, and avoid inhaling vapors
Containment: Isolate spill source, build dikes with inert material, stop leak if safe to do so
Cleanup Method: Absorb with sand or earth, shovel into containers
Ventilation: Increase airflow in affected zone to limit vapor accumulation
Environmental Measures: Prevent liquid from entering drains or waterways, alert environmental authorities in case of large release
Handling Precautions: Handle in well-ventilated spaces, avoid aerosol generation, wear gloves in direct work
Avoided Conditions: Prolonged storage at high heat, open flames, spark sources
Storage Recommendations: Store in cool, dry place in tightly closed containers, keep away from incompatible materials like oxidizers
Labeling Needs: Clear chemical identification and hazard warnings must face outward
Personal Hygiene: Wash hands before eating or smoking
Engineering Controls: Use local ventilation to keep airborne concentrations below acceptable thresholds (ACGIH TLV: 100 ppm)
Personal Protective Equipment: Chemical-resistant gloves, splash goggles, long sleeves
Respiratory Protection: Use in poorly ventilated conditions demands proper cartridge masks
Eye/Face Protection: Safety goggles
Work Practices: Regular hand washing, changing contaminated clothing
Form: Liquid
Color: Colorless
Odor: Mild, ether-like
Boiling Point: Around 190°C
Melting Point: Well below zero Celsius
Vapor Pressure: Low at room temperature
Solubility in Water: Mixes readily
Density: About 0.95 g/cm³
Viscosity: Low to moderate, pours easily
Flash Point: Typically above 75°C
Evaporation Rate: Slower than water
Chemical Stability: Remains stable under standard handling and storage
Incompatible Materials: Strong oxidizers, some acids
Conditions to Avoid: Heat sources, open flames, ignition points
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide, and organic vapors under fire conditions
Polymerization: Unlikely
Acute Toxicity Data: Low oral toxicity in laboratory animals; high doses cause narcosis and irritative effects
Skin and Eye Effects: Mild irritant on direct contact
Inhalation Risk: Symptoms include dizziness at elevated concentrations
Chronic Exposure Risks: Prolonged, frequent exposure may lead to blood changes and nervous system symptoms
Carcinogenicity: Not listed as a carcinogen by IARC or OSHA
Sensitization: Not expected under routine use
Aquatic Toxicity: Low risk for fish and invertebrates at typical concentrations
Persistence/Degradability: Readily biodegradable within environmental systems
Bioaccumulation Potential: Unlikely, based on structure and breakdown rate
Mobility in Soil: Moderate, runoff possible after heavy spills
Safe Disposal Methods: Burn in controlled facilities equipped with after-burners and scrubbers, or send for solvent recovery
Disposal Restrictions: Avoid draining to sewers or waterways
Container Handling: Triple rinse before recycling or disposal; puncture to avoid pressure buildup
Shipping Name: Glycol ether solution
Transport Hazards: Not typically classified as dangerous for road, rail, sea, or air unless carried in bulk
Transport Advice: Secure containers, avoid stacking, keep away from food and feed
OSHA Status: Regulated as a hazardous chemical with set exposure limits
TSCA Listing: This compound appears on the United States TSCA inventory
Community Right-to-Know: Must be included on hazardous chemical inventories
Workplace Safety Requirements: Safety data sheet required where handled, employee training advised
Labeling Needs: Container labeling must match hazard class with warning pictograms under GHS
