Description

Poly(Propylene Glycol) is a versatile, synthetic polyether compound widely used as a base material, intermediate, and functional fluid. Its value lies in its excellent solubility, low toxicity, and tunable physical properties, which can be modified by adjusting its molecular weight. This makes it a critical component for manufacturers in the pharmaceutical, personal care, polyurethane, and specialty chemical industries seeking reliable performance and formulation flexibility.

Application

• As a key intermediate and chain extender in the production of polyurethane foams, elastomers, and coatings.
• As a base or carrier fluid in functional fluids such as hydraulic fluids, brake fluids, and heat transfer fluids.
• As a humectant, solvent, or viscosity modifier in cosmetics and personal care products (e.g., lotions, creams, deodorants).
• As a plasticizer and processing aid in the manufacture of plastics, adhesives, and sealants.
• As a lubricant and mold release agent in various industrial manufacturing processes.
• In pharmaceutical formulations as an excipient or solvent for drug delivery systems.
• As a chemical intermediate for the synthesis of specialty surfactants and esters.

Basic Information

Product Name	Poly(Propylene Glycol)
CAS No.	25322-69-4
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-; 1,2-Propanediol homopolymer; Oxirane, methyl-, homopolymer; Poly(propylene oxide); Propylene Oxide Polymer; Poly-MEG; Jeffox PPG; Acclaim Polyol
EINECS	246-820-1

Quality Control

Our Poly(Propylene Glycol) is produced under a stringent quality management system to ensure batch-to-batch consistency and reliability. Quality is verified against critical parameters including hydroxyl value, molecular weight distribution, viscosity, water content, and color. Certificates of Analysis (COA) documenting full specifications are provided with every shipment to support your quality assurance and regulatory compliance needs.

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 product is hygroscopic (moisture-sensitive); containers must be kept tightly sealed when not in use to prevent absorption of atmospheric moisture, which can affect product properties.

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)
Molecular Weight (Average)	As per grade (e.g., 400, 1000, 2000, 4000)
Viscosity @ 25°C (cSt)	Grade-specific
Water Content	≤ 0.1 % (w/w)
Color (APHA)	≤ 50
Acidity (as CH3COOH)	≤ 0.01 % (w/w)

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