Product Name: Diethylene Glycol Monopropyl Ether
Chemical Formula: C9H20O4
CAS Number: 34590-94-8
Synonyms: Propylene glycol monomethyl ether, Propasol P
Use: Often used as a solvent in paints, inks, cleaners, and some coatings, showing up where controlled evaporation and low odors matter.
Supplier: Most major chemical suppliers stock it. Check safety sheets from the actual manufacturer or distributor.
Classification: Eye and skin irritant. Noted for toxic effects if swallowed in large quantities. No strong evidence of carcinogenicity, but inhalation or excessive skin contact can lead to headaches or nausea.
Signal Word: Warning
Hazard Statements: Causes mild skin and eye irritation. Harmful if swallowed.
Pictograms: Exclamation mark.
Precautionary Statements: Avoid breathing vapors or mist, wear protective gear, wash hands after use, do not eat, drink, or smoke during use.
Main Ingredient: Diethylene Glycol Monopropyl Ether 99%
Impurities: May hold traces of diethylene glycol, propylene glycol, or water, mostly under 1% each.
No other significant components in typical commercial samples.
Inhalation: Move to fresh air, keep at rest. If symptoms appear, call for medical help.
Skin Contact: Wash with soap and plenty of water. Take off contaminated clothing and launder before reuse.
Eye Contact: Rinse carefully with water for 15 minutes. Remove contact lenses if present.
Ingestion: Rinse mouth with water. Do not induce vomiting. Seek medical advice right away.
Suitable Agents: Use water spray, dry chemical powder, carbon dioxide, or foam.
Special Hazards: Can emit toxic fumes under fire conditions—carbon oxides.
Protective Equipment: Firefighters should wear self-contained breathing apparatus and full protective clothing.
Precautions: Keep containers cool with water spray, fight fire from safe distance, prevent runoff from entering drains.
Personal Precautions: Ventilate area, keep people away, watch out for slippery surfaces.
Spill Response: Absorb with inert material (sand, earth, vermiculite), collect in suitable container for disposal.
Environmental Precautions: Avoid discharge into drains or water sources.
Cleaning Methods: Wash the spill area with lots of water after collection.
Handling: Use with sufficient ventilation, avoid breathing vapors. Wear gloves and eye protection.
Storage: Keep in a tightly closed container, away from heat, sparks, flame. Store in cool, dry, and well-ventilated area.
Incompatible Materials: Strong oxidizers, acids, and bases.
Storage Class: Chemical storage, avoid storage above 40°C to prevent decomposition.
Exposure Limits: ACGIH and OSHA: TWA 100 ppm (606 mg/m³).
Engineering Controls: Local exhaust ventilation commonly used.
Personal Protective Equipment (PPE): Gloves—nitrile or neoprene; Eye protection—safety glasses or goggles; Skin protection—lab coat, chemical resistant apron.
Respiratory Protection: Use organic vapor cartridge if vapor concentrations are high.
Hygiene Measures: Always wash hands after use, no eating or drinking in work area.
Appearance: Clear, colorless liquid.
Odor: Slight, mild odor
Odor Threshold: Not strong, barely noticeable at low concentrations.
pH: Not applicable (neutral)
Melting Point: -80°C
Boiling Point: 242°C
Flash Point: 113°C (closed cup)
Evaporation Rate: Slower than water.
Flammability (solid, gas): Not applicable
Upper/Lower Flammability or Explosive Limits: Upper 12%, Lower 1% (estimated)
Vapor Pressure: 0.05 mmHg @ 20°C
Solubility: Miscible with water.
Partition Coefficient (n-octanol/water): -0.5 approx.
Viscosity: 4.8 mPa·s at 25°C
Density: 0.95 g/cm³ at 20°C
Chemical Stability: Stable under normal storage and handling.
Reactivity: Reacts with strong oxidizing agents.
Decomposition Products: Carbon monoxide, carbon dioxide on combustion.
Polymerization: Not expected.
Other Comments: Avoid moisture uptake and strong heat for longer shelf life.
Acute Toxicity: LD50 (oral, rat) 4013 mg/kg. May cause irritation on skin or in eyes.
Chronic Exposure: Headache, drowsiness, nausea from repeated exposure.
Sensitization: Not a known sensitizer.
Carcinogenicity: Not classified as carcinogenic.
Mutagenicity: No clear evidence.
Target Organs: Liver, kidneys with long-term high dose exposure.
Ecotoxicity: Moderately toxic to aquatic life in concentrate.
Persistence: Readily biodegradable in soil and water.
Bioaccumulation: Low potential to bioaccumulate.
Mobility in Soil: High mobility; can seep into soil if spilled.
Additional Notes: Prevent undiluted material from reaching water systems, large spills can harm aquatic environments.
Waste Disposal: Dispose in line with local, regional, and national regulations. Burn in a chemical incinerator equipped with afterburner and scrubber or send to licensed chemical disposal facility.
Container Management: Triple rinse containers, never reuse for food or drink.
Do Not Pour Down Drain: Even though miscible, sewer systems can be damaged.
Consult Local Authorities: Procedures vary by region.
UN Number: Not regulated for ground, sea or air transport—non-hazardous classification.
Proper Shipping Name: Diethylene Glycol Monopropyl Ether
Transport Hazard Class: None
Packing Group: None
Special Transport Precautions: Keep tightly closed, upright to avoid spills.
Label Requirements: No mandatory hazard label, but general chemical label always helps in transit.
US TSCA: Listed
EU REACH: Registered
OSHA: Regulated as hazardous chemical, subject to hazard communication.
California Prop 65: Not listed
Other Regulations: Satisfies chemical inventory requirements in most industrial countries.
Worker Protection: Covered by national workplace safety rules everywhere solvents are used.
