Product name: Polyethylene‑polypropylene glycol (Poloxamer / Pluronic, EO‑PO Block Copolymer)
CAS‑No.: 9003‑11‑6
EC/EINECS‑No.: 618‑355‑0
Synonym: Polyoxyethylene‑polyoxypropylene block copolymer, PEG‑PPG‑PEG triblock copolymer, Poloxamer
Molecular Formula: HO·(C₂H₄O)m·(C₃H₆O)n·H
Average Molecular Weight: Varies by grade
Grade: Industrial / Pharma / Cosmetic Grade
Product Description
Polyethylene‑polypropylene glycol is a non‑ionic triblock block copolymer of ethylene oxide and propylene oxide. Appearance varies from clear viscous liquid to white waxy solid / flake depending on molecular weight and EO/PO ratio. Odourless, fully miscible with water and many organic solvents. It possesses excellent surface‑active, emulsifying, dispersing, solubilizing and wetting properties. Different grades show different HLB values, widely used in surfactant, pharmaceutical excipient, cosmetic, coating and industrial cleaning fields。
Physical‑Chemical Properties
Solubility: Miscible with water; soluble in alcohols and polar organic solvents
Stability: Stable under normal conditions; avoid strong oxidizing agents
Characteristic: Non‑ionic surfactant; HLB adjustable by EO/PO ratio
Melting point: Liquid ~ 55 ℃ (depends on polymer grade)
Typical Quality Specifications (General Industrial Grade)
| Item | Specification | Test Method |
|---|---|---|
| Appearance | Clear viscous liquid / white waxy solid | Visual inspection |
| Hydroxyl Value, mgKOH/g | According to grade | Titration |
| pH (10% aqueous solution) | 5.0‑7.5 | pH‑meter |
| Water content, % | ≤ 0.5 | Karl‑Fischer titration |
| Water‑insoluble matter, % | ≤ 0.10 | Gravimetric |
| Cloud point (1% aqueous solution), ℃ | Grade‑dependent | Oven test |
Applications
Pharmaceutical industry: Pharmaceutical excipient, solubilizer, emulsifier, gel‑forming agent for drug formulations.
Cosmetic & personal‑care: Emulsifier, solubilizer, wetting agent in creams, lotions.
Industrial cleaning: Low‑foam non‑ionic surfactant for hard‑surface cleaners.
Coating & ink: Dispersant, wetting agent for pigment system.
Textile industry: Auxiliary agent for spinning and dyeing.
Cell‑culture reagent, defoamer for various industrial processes
Packaging & Transportation
HS Code: 39072990
UN‑Number: Non‑dangerous goods
Package: 25 kg fiber drum / 200 kg plastic drum / 1000L IBC tank
Storage: Store in cool, dry, well‑ventilated warehouse, keep tightly sealed. Avoid direct sunlight and high temperature.
Shelf‑life: 24 months under recommended storage.
Hazard Summary
Warning. Dust / liquid may cause mild skin and eye irritation. Avoid dust inhalation. Wear protective gloves, safety goggles during handling. Refer to SDS for complete safety information.
Disclaimer
All information given is based on current laboratory knowledge for reference only, not contractual guarantee. End‑users shall verify suitability for their own process and comply with local regulatory requirements.



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