Products Description of Poly(propylene glycol)CAS#25322-69-4
Polypropylene glycol (PPG), identified by the molecular formula H(C3H6O)nOH, is a high-performance polymeric material. It presents as a colorless to pale yellow viscous liquid, featuring non-volatile and non-corrosive properties for reliable application. Commercial products typically cover a molecular weight range of 400–2050, with solubility tailored to molecular weight: low-molecular-weight PPG dissolves in water, while high-molecular-weight types are slightly water-soluble and compatible with oils, hydrocarbons, and other solvents.Equipped with dual-terminal hydroxyl groups, PPG supports esterification (yielding non-ionic surfactant monoesters) and etherification reactions, enabling versatile functionality. It serves as an efficient solvent for vegetable oils, resins, and paraffin, and is widely adopted in manufacturing alkyd resins, emulsifiers, demulsifiers, lubricants, and plasticizers—catering to diverse industrial needs. Produced through condensation of propylene oxide and propylene glycol (under high pressure or with acidic catalysis), PPG delivers consistent performance for commercial and industrial applications.
Parameters
Melting point | -40 °C |
Boiling point | >300 °C |
density | 1.01 g/mL at 20 °C |
vapor density | >1 (vs air) |
Pour Point | -26 |
Pour Point | -45 |
vapor pressure | <0.01 mm Hg ( 20 °C) |
refractive index | n20/D 1.451 |
Fp | 230 °C |
solubility | H2O: <0.01 % (w/w) at 25 °C |
form | Viscous Liquid |
Specific Gravity | 1.005 |
color | White to light gray |
Water Solubility | PRACTICALLY INSOLUBLE |
FreezingPoint | -25 |
FreezingPoint | -40 |
Stability: | Stable. Substances to be avoided include strong oxidizing agents. |
LogP | 0.01 at 25℃ |
NIST Chemistry Reference | Polypropylene glycol 425(25322-69-4) |
EPA Substance Registry System | Polypropylene glycol (25322-69-4) |
Safety Information
Safety Statements | 24/25 |
WGK Germany | 1 |
RTECS | TR5250000 |
TSCA | Yes |
HS Code | 39072090 |
Hazardous Substances Data | 25322-69-4(Hazardous Substances Data) |
Product Application of Poly(propylene glycol)CAS#25322-69-4
Polymers and polymer organic substances; Hydrophobic polymers; Inorganic compounds and salts; Professional reagents; Food processing additives; Food additives; Defoaming agents; Pesticide additives; Biochemical reagents; Polypropylene glycol PPG series; Organic chemical raw materials; Chemistry; Polypropyleneglycol; AlphabeChemicalbooktic; P; Organic raw materials; Chemical raw materials; Raw materials; Cosmetics raw materials; Alcohols; Chemical materials; Polypropylene glycol PPG-2000; Polypropylene glycol PPG-400; Polypropylene glycol PPG-1000; Polypropylene glycol PPG-4000; Polypropylene glycol; Active pharmaceutical ingredients; Pharmaceutical, pesticide and dye intermediates; Chemical raw materials - organic chemical industry; Polypropylene glycol PPG series - polypropylene glycol
Factory and Equipment Show
Fast delivery time
Inventory 2-3 working days New production 7-10 working days
