Description

Poly(Propylene Glycol) is a versatile synthetic polymer derived from the controlled addition polymerization of propylene oxide. This compound is valued for its excellent solvency, low volatility, and tunable viscosity, making it a critical intermediate and functional fluid in numerous industrial processes. It is essential for manufacturers in the polyurethane, cosmetics, pharmaceutical, and specialty chemical sectors seeking reliable performance and consistent quality.

Application

• Primary raw material and chain extender in the production of flexible polyurethane foams, elastomers, and coatings.
• Base fluid and carrier in industrial lubricants, hydraulic fluids, and functional heat transfer fluids.
• Key ingredient in cosmetic and personal care formulations as a humectant, solvent, and viscosity modifier.
• Plasticizer and processing aid in polymer and resin manufacturing.
• Excipient and solvent in pharmaceutical applications for drug delivery systems.
• Intermediate for the synthesis of specialty surfactants and functional fluids.
• Component in food-grade applications as an anti-foaming agent or processing aid where specified grades are used.
• Used in adhesive and sealant formulations to modify flexibility and curing profiles.

Basic Information

Product Name	Poly(Propylene Glycol)
CAS No.	25791-96-2
Molecular Formula	(C3H6O)nH2O
Molecular Weight	Variable (typically 400-4000 g/mol)
Synonyms	PPG; Polypropylene Glycol; Poly(oxy(methyl-1,2-ethanediyl)), α-hydro-ω-hydroxy-; Oxirane, methyl-, homopolymer; 1,2-Propanediol homopolymer; Propylene Oxide Homopolymer; Poly(propylene oxide); Poly-MEG®; Jeffox® PPG; Voranol® P Series
EINECS	247-152-6

Quality Control

Our Poly(Propylene Glycol) is manufactured under a strict quality management system. Each batch is tested to ensure it meets precise specifications for hydroxyl value, viscosity, water content, and color. Certificates of Analysis (COA) are provided with every shipment, detailing the results of these critical tests. We can supply grades suitable for various applications, including industrial, cosmetic, and technical uses, with a commitment to consistent purity and performance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and should be kept under a dry, inert atmosphere (e.g., nitrogen) to prevent oxidation and moisture absorption. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms
Hydroxyl Value (mg KOH/g)	As per grade (e.g., 56, 112, 280)
Viscosity @ 25°C (cSt)	As per grade
Water Content	≤ 0.1 % (w/w)
Color (APHA)	≤ 50
Acid Value (mg KOH/g)	≤ 0.05
pH (5% solution)	5.0 - 7.0

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.