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Chemical Name: Dimethyl 1,3-Propylene Glycol
Common Names: 2,2-Dimethyl-1,3-propanediol, Neopentyl glycol
CAS Number: 126-30-7
Physical Form: Solid, white crystalline compound
Odor: Mild, almost unnoticeable
Hazard Classification: Not classified as hazardous by GHS.
Potential Health Effects: Dust may cause mild irritation to nose, throat, and eyes. Repeated skin contact can lead to dryness or cracking.
Environmental Hazards: Can pose minor risks to aquatic organisms in concentrated spills.
Pictograms: Not typically required, since risks remain low with normal use.
Precautionary Statements: Keep container tightly closed. Avoid generating dust. Use adequate ventilation.
Purity: Typically over 98% pure
Other Ingredients: Minor impurities may include water and trace organic compounds, rarely exceeding 2% by weight
Inhalation: Move to fresh air if dust is inhaled. Seek medical attention for persistent irritation.
Skin Contact: Wash with soap and water. Symptoms like dryness may show up with frequent exposure.
Eye Contact: Rinse thoroughly with water for several minutes. Remove contact lenses if present. Medical advice may be needed if discomfort persists.
Ingestion: Rinse mouth with water. Drink small amounts of water to dilute. Medical attention is rarely necessary unless large quantities are ingested.
Suitable Extinguishing Media: Water spray, foam, dry chemical, carbon dioxide
Specific Hazards: Decomposition at high temperatures may release carbon monoxide, carbon dioxide
Protective Equipment: Firefighters should use self-contained breathing apparatus and protective suit
Firefighting Advice: Approach upwind to avoid exposure to hazardous combustion products. Use standard firefighting measures.
Personal Precautions: Avoid breathing dust. Wear dust mask and goggles in dusty environments
Spill Containment: Sweep up spill, collect in clean, dry containers. Prevent dust formation. Ventilate area.
Cleanup Methods: Small spills can be handled with a broom. Large spills may require wet methods to keep dust down.
Environmental Precautions: Prevent run-off into waterways. Sweep up promptly to reduce chances of release into drains.
Handling: Handle in well-ventilated areas. Use with precautions against dust. Wash hands after handling.
Storage: Store in cool, dry location. Keep container tightly closed. Avoid direct sunlight and moisture, which can degrade product quality over time.
Occupational Exposure Limits: None established by OSHA or ACGIH
Engineering Controls: Local exhaust ventilation recommended
Respiratory Protection: Dust mask or respirator if dust generation is likely
Skin Protection: Gloves for repeated or prolonged contact
Eye Protection: Chemical safety goggles in dusty environments
Hygiene Measures: Regular handwashing and removal of contaminated clothing recommended
Appearance: White, crystalline solid
Odor: Mild, almost absent
Melting Point: Approximately 126°C
Boiling Point: Approximately 210°C
Solubility: Soluble in water and many organic solvents
Density: Around 1.06 g/cm³
Vapor Pressure: Negligible under ambient conditions
pH: Neutral in solution
Chemical Stability: Stable under normal conditions of use and storage
Hazardous Decomposition: Can release carbon monoxide and carbon dioxide at high temperatures
Polymerization: Not known to occur
Incompatible Materials: Strong oxidizers
Acute Toxicity: Low oral and dermal toxicity, with LD50 values in rats at 4,000–5,000 mg/kg
Irritation: Not a primary irritant but dust can cause discomfort
Sensitization: Not expected to cause skin sensitization based on animal studies
Chronic Effects: No evidence linking regular exposure to serious health problems
Carcinogenicity: Not listed by IARC, NTP, or OSHA
Aquatic Toxicity: Moderately biodegradable, low toxicity to aquatic species
Persistence and Degradability: Breaks down over time, generally considered low persistence
Bioaccumulation: Low potential, doesn’t build up in organisms
Mobility in Soil: Very soluble in water, can move through soil easily in liquid spills
Waste Treatment Methods: Small quantities can be disposed of as non-hazardous chemical waste. Follow local, state, or federal regulations, especially for large amounts.
Container Disposal: Clean containers thoroughly. Recycle or dispose in approved landfill.
UN Number: Not classified as hazardous for transport
Proper Shipping Name: Not regulated
Transport Hazards: No special requirements beyond general cargo precautions
Packing Group: Not assigned
Global Inventory Status: Registered in most major chemical inventories, including TSCA (USA), REACH (EU), DSL (Canada)
Hazard Classification: Not considered a hazardous substance by major international agencies
SARA 313, CERCLA, RCRA: Not subject to reporting or specific control requirements
Worker Protection: General workplace protections apply, no unique regulatory restrictions reported
