Tripropylene glycol

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Abbreviation: TPG

Molecular formula: C₉H₂₀O₄

Molecular weight: 192.3

CAS number: 24800-44-0

Physical and chemical properties:

Transparent liquid, almost odorless, hygroscopic, completely soluble in water, miscible with many organic solvents. Boiling range: 263–280℃, freezing point: -45℃, relative density (20℃): 1.017–1.028, refractive index: 1.440–1.445, general industrial grade purity ≥99.0%, moisture ≤0.2%. Used in the synthesis of polyester resins, polyester polyols for polyurethanes, acrylates, solvents, and plasticizers.