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Substance Name: Dimethyl 1,3-Propanediol
Chemical Formula: C5H12O2
Common Synonyms: 2,2-Dimethyl-1,3-propanediol, Neopentyl glycol
Use Cases: Used in polyester resins, coatings, lubricants, plasticizers, and sometimes surfactants
Appearance: Colorless crystalline solid, faint odor
Solubility: Dissolves well in water and most organic solvents
Hazard Class: Not classified as highly hazardous but dust or mist can cause mild irritation
Acute Effects: Short exposure can lead to eye or skin discomfort; inhalation may irritate nose and throat
Chronic Impact: Repeated skin contact dries and cracks skin; limited data on long-term toxicity
Main Ingredient: Dimethyl 1,3-Propanediol (typically above 99%)
Impurities: Trace organic byproducts may be present in minuscule amounts depending on synthesis
Inhalation: Move affected person to fresh air, get medical help if coughing or discomfort continues
Skin Contact: Wash well with plenty of soap and water, take off any contaminated clothing
Eye Contact: Rinse eyes carefully with water for several minutes, check for irritation
Ingestion: Rinse mouth, do not induce vomiting, seek prompt medical attention if large amounts swallowed
Suitable Extinguishing Media: Water spray, foam, dry chemical, or CO2 work well
Hazards in Fire: Burning releases irritating fumes, possibly CO and CO2
Protective Equipment: Firefighters should wear self-contained breathing apparatus and full protective gear
Personal Precautions: Avoid breathing in dust; vent the area and prevent skin contact
Spill Cleanup: Collect material in dry, clean containers for reuse or disposal; damp down dust with water if necessary; wash spill site after cleanup
Environmental Protection: Prevent chemical from reaching drains or waterways
Handling Tips: Work in well-ventilated areas, avoid generating dust, keep away from strong oxidizers
Storage: Store in tightly sealed containers, keep dry and away from heat sources, avoid moisture contact
Ventilation: Use in areas with local exhaust ventilation or fume hood if dust forms
Respiratory Protection: Use dust mask or respirator when working with powder
Skin Protection: Wear protective gloves; long sleeves recommended
Eye Protection: Use chemical safety goggles
Hygiene: Wash hands after handling before eating or drinking
State: Solid at room temperature
Melting Point: 128–131°C
Boiling Point: Decomposes before boiling at atmospheric pressure
Vapor Pressure: Extremely low at room temperature
Odor: Mild, not distinctive
Solubility: High in water
Flash Point: Above 140°C (closed cup)
Chemical Stability: Stable under normal temperatures and conditions
Reactive With: Strong oxidizers, acids, and alkalis
Hazardous Decomposition: Produces formaldehyde, CO, and other gases on combustion
Polymerization: Does not tend to polymerize spontaneously
Oral Toxicity: Low toxicity in small amounts; moderate exposure can lead to stomach discomfort
Skin and Eye: Causes mild irritation; unlikely to cause lasting injury with standard precautions
Sensitization: Cases of allergic reaction rare, but not impossible
Mutagenicity/Carcinogenicity: No strong evidence of cancer risk; mutagenic effects not widely reported
Bioaccumulation: Degrades in environment, not likely to build up in aquatic life
Aquatic Toxicity: Low risk to aquatic organisms; breakdown by natural processes, especially in water
Soil Mobility: Water solubility means it can move through soil but does not persist long-term
Preferred Disposal: Send waste to approved facility for chemical disposal; do not flush in large amounts
Recycling: Some facilities recover and reuse this chemical, so recycling options may be available
Container Disposal: Clean thoroughly before recycling or discarding
UN Number: Chemical typically not classified as dangerous for transport
Transport Hazard Class: Usually not regulated for shipping, but good practice requires secure packaging
Special Precautions: Keep containers upright and sealed; protect from moisture and extremes of temperature
Regulation Overview: Dimethyl 1,3-Propanediol not considered a major workplace hazard; usual handling laws for chemicals apply
Reporting Requirements: Users may need to disclose use depending on local environmental guidelines
Labeling: Standard rules for chemical labeling: identify contents, hazard pictogram if judged necessary, handling advice
