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Trimethylolpropane
2026.10.28

CAS: 77-99-6
Chemical name: Tripropylene glycol (TPG) Molecular formula: C₉H₂₀O₄ Properties Colorless transparent viscous liquid, almost odorless. Fully miscible with water and many organic solvents, low volatility. Boiling point: 270℃, closed-cup flash point approx 143℃, density: 1.02 g/cm³. Low-toxicity polyglycol, good coupling & humectant performance. Main applications

  1. Coatings & inks: Slow-evaporating coalescing agent, leveling agent for waterborne & industrial coatings, UV raw material for TPGDA
  2. PU & resin: Polyol intermediate for polyurethane elastomers, unsaturated polyester
  3. Personal care: Humectant, solvent and viscosity modifier for cosmetics
  4. Others: Industrial cleaners, textile lubricants, hydraulic fluids, formulation coupling agent