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Polyethylene Glycol 600 (commonly identified as PEG-600, CAS Number: 25322-68-3) is a linear polyether compound produced via the ring-opening polymerization of ethylene oxide. Operating as a clear, viscous liquid at room temperature, PEG-600 features unique characteristics that position it between low molecular weight liquid glycols and solid high molecular weight PEGs. Its chemical structure, represented by the formula H(OCH₂CH₂)nOH where n is approximately 12 to 14, provides exceptional hydrophilicity, thermal stability, and regulatory safety profiles that make it invaluable in current global manufacturing processes.
"In B2B chemical manufacturing, PEG-600 serves as a critical structural binder, humectant, and co-solvent. The global demand for this material is driven by the rapid modernization of personal care cosmetics, advanced agrochemical carrier systems, and high-performance metal processing formulations."
As manufacturing industries transition toward ecological compatibility, factories producing PEG-600 must comply with tight environmental controls. The raw materials used in synthesis demand strict processing conditions to minimize impurities, including free ethylene oxide and 1,4-dioxane. This level of purity is necessary to meet the standards set by global regulatory organizations such as the European Chemicals Agency (ECHA) under REACH and the United States Food and Drug Administration (FDA).
For formulation engineers and chemical procurement professionals, understanding the precise chemical physical metrics is critical to choosing the correct supplier. Below is the technical specification profile of high-grade PEG-600 manufactured in state-of-the-art facilities:
| Chemical Property Parameter | Standard Range Limit | Testing & Reference Method | Industrial Importance & Utility |
|---|---|---|---|
| Appearance @ 25°C | Clear, Colorless Viscous Liquid | Visual Inspection | Indicates the absence of contaminants and low oxidation. |
| Hydroxyl Value (mg KOH/g) | 178 – 197 | ASTM E222 | Determines average polymer chain length and reactivity. |
| Average Molecular Weight | 570 – 630 g/mol | Calculated via OH Value | Ensures consistency in formulation viscosity. |
| pH (5% Aqueous Solution) | 5.0 – 7.0 | USP <791> | Crucial for skin compatibility in cosmetic products. |
| Viscosity @ 99°C (cSt) | 9.9 – 11.3 | ASTM D445 / Ubbelohde | Determines performance in lubricants and heat transfer fluids. |
| Water Content (% w/w) | Max 0.5% | Karl Fischer Titration | Prevents hydrolytic degradation in moisture-sensitive compounds. |
| Ethylene Oxide Residue | < 1 ppm | Headspace Gas Chromatography | Ensures compliance with global pharmaceutical and cosmetic safety regulations. |
Why sourcing from optimized chemical production centers in China reduces total cost of ownership while raising quality standards.
Our production facilities maintain direct raw material pipelines linked with regional ethylene crackers. This secures a continuous supply of ethylene oxide, protecting our production capacity from raw material price volatility.
We use automated polymerization reactors managed by advanced DCS control systems. This narrow distribution control results in PEG-600 with consistent viscosity profiles, minimizing variation between production lots.
By implementing closed-loop heat integration systems, our factories utilize exothermic reaction heat to power auxiliary distillation towers. This process lowers energy usage per metric ton produced.
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We assure you that our products originate from well-managed, certified, and sustainable resources.
Provide a comprehensive and rich portfolio of chemical raw materials to streamline your procurement chain.
Equipped with advanced analytical instrumentation to support customized ODM and OEM formulation requests.
Our operational framework ensures our raw materials remain superior in quality and cost-competitive globally.
Materials and products are delivered to match your production schedules and prevent supply chain delays.
As a leading supplier in the daily chemical raw materials industry, Suzhou Yuantairun Chemical Co., Ltd. is dedicated to delivering high-quality products and comprehensive one-stop services to support our customers in R&D, production, and supply chain optimization. Our mission is to drive innovation and efficiency in the global daily chemical industry by providing cutting-edge solutions tailored to our clients' needs.
How our PEG-600 is formulated across various global industries to improve stability and performance.
Commonly formulated in cosmetic skin creams, foundations, and toothpastes to retain moisture and keep active agents dissolved. Its mild nature and compatibility with delicate surfactants make it a key ingredient in modern skin-friendly products.
In yarn extrusion and fabric weaving, PEG-600 improves flexibility, reduces static charges, and enhances dye absorption. It washes out easily without leaving sticky residues on processing machinery.
Used as an additive in metalworking fluids, drawing lubricants, and mold release agents. Its thermal stability prevents smoke development and maintains lubricating properties at high processing temperatures.
Comprehensive formulations engineered to maximize efficacy, sustainability, and market performance.
Uses SLES and AOS as core surfactants for high-efficiency, eco-friendly cleaning performance.
Features mild amino acid-based surfactants (Sodium Cocoyl Glutamate) for sensitive skin.
Utilizes Cetrimonium Chloride for antistatic properties and fabric conditioning.
Combines amphoteric CAB-35 and non-ionic APG1214 for rich, skin-friendly lather.
Powered by LAS and EGDS for breakdown of heavy grease in industrial cleaning settings.
Customized manufacturing services and packaging models to align with various commercial requirements.
We customize specifications depending on your use scenarios, such as hotels, barbershops, or retail, offering multi-functional packaging options across price tiers.
Customization services for fragrance profiles, packaging styles, and cleaning efficacy to match target market expectations.
Formulations designed for regular use in malls, restaurants, and consumer retail sectors, balancing hygiene with skin hydration.
Discover our highly requested daily chemical ingredients favored by leading manufacturing brands.
Answering key technical questions regarding chemical stability, regulatory alignment, and factory supply models.
PEG-600 is synthesized via the catalytic polymerization of ethylene oxide (EO) onto an initiator, typically monoethylene glycol or water, in the presence of an alkaline catalyst like sodium hydroxide. The reactor temperature is carefully held between 140°C and 160°C under pressurized nitrogen gas to control the polymer chain distribution and prevent degradation.
PEG-600 exhibits Newtonian fluid flow properties. With an average viscosity of 9.9 to 11.3 cSt at 99°C, it remains a liquid that flows easily at room temperature. This makes it suitable for use as a carrier liquid in liquid detergents, textile lubricants, and cosmetic lotions where solid polyethylene glycols (like PEG-1500) would cause stiffness.
For international bulk shipping, we provide PEG-600 in 200kg steel drums, 1000kg IBC totes, and bulk flexitanks. Flexitanks are particularly cost-effective for large liquid orders, maximizing space inside standard 20-foot shipping containers while protecting the product from moisture absorption during transport.
We use stripping columns and post-polymerization vacuum degasification in our automated manufacturing facilities. This process reduces trace residues of ethylene oxide and 1,4-dioxane to below 1 ppm and 5 ppm respectively, complying with strict cosmetic and pharmaceutical purity regulations.
When stored in its original, unopened container in a cool, dry, and well-ventilated warehouse, PEG-600 has a shelf life of two years. Because of its hygroscopic nature, the container seals must remain tight to prevent water absorption from the surrounding air.
Yes. As a non-ionic polymer, PEG-600 is compatible with anionic surfactants (such as SLES), cationic surfactants, and amphoteric systems. It is often used in cosmetic formulations to adjust viscosity and improve skin feel without destabilizing the surfactant balance.
Polyethylene glycols with molecular weights under 1000, including PEG-600, are biodegradable under aerobic conditions. Soil bacteria can metabolize the polymer chains, resulting in a favorable environmental footprint compared to synthetic silicone lubricants.
Our production facilities are certified under ISO 9001:2015 for quality management, ISO 14001:2015 for environmental management, and ISO 45001 for occupational safety. Our products are fully registered under EU REACH for chemical export compliance.
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An oil-resistant amino acid surfactant with high foaming properties, designed specifically for gentle shampoos.
A skin moisturizer compatible with various oil phases, featuring strong dispersing capabilities for cosmetics.
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