Poly propylene glycol (sorle-2000)

Poly propylene glycol (sorle-2000)

CAS Number:25322‑69‑4

Synonyms:Polypropylene glycol 2000; PPG‑2000; Polyether polyol; Poly (propylene glycol) 2000

Chemical Formula:HO–(C₃H₆O)ₙ–OH (n ≈ 36)

Molecular Weight:~2000 g/mol

Product Introduction

A clear, odorless/slightly sweet viscous liquid. A mid‑range molecular weight polypropylene glycol, used as a polyol, antifoam, lubricant, humectant, and elastomer soft‑segment. FDA GRAS status for food/cosmetic use

Physical & Chemical Properties

Property Value
Appearance Clear, colorless viscous liquid
Odor Slightly sweet, low odor
Density @ 25 °C ~1.004 g/cm³
Viscosity @ 20 °C ~370–450 mPa·s
Pour Point Higher than lower MW PPG, partially water‑soluble
Flash Point >100 °C
Water Solubility Slight; decreases at elevated temperature
Vapor Pressure Very low
Hydroxyl Value ~54–58 mg KOH/g

Applications

  • Antifoam: latex, fermentation, paper, paints
  • Polyurethane: soft segments, elastomers, sealants
  • Lubricant base/greases: hydraulic fluids, brake fluids
  • hydraulic fluids, brake fluids: humectant, solvent; GRAS up to 98% in drugs/food
  • Specialty usesmold release, rheology agents, de-icers, defoamers

Safety Handling

  • Low hazard; non‑hazardous per GHS. Slight skin/eye irritation possible. Use PPE (gloves/goggles) when handling. Store 15–60 °C sealed.
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