Direct factory supply chain integration supporting high-capacity custom synthesis and strict quality control matrices.
An authoritative, deep-dive examination of molecular properties, synthesis pathways, quality standards, and industrial applications.
Polyethylene glycol (PEG), otherwise designated as macrogol in clinical contexts, represents a polyether compound with extensive applicability ranging from industrial manufacturing protocols to sophisticated pharmaceutical delivery platforms. Synthesizable through the anionic ring-opening polymerization of ethylene oxide initiated by water, monoethylene glycol, or diethylene glycol, its structural configuration is represented by the general formula H-(O-CH₂-CH₂)n-OH.
The molecular weight of the polymer determines its physical characteristics, dividing the PEG spectrum into low molecular weight liquids (PEG 200 to PEG 600), semi-solid pastes (PEG 1000 to PEG 2000), and crystalline solids or waxy flakes (PEG 3000 to PEG 20000 and beyond). As a premier wholesale Polyethylene Glycol manufacturer and supplier, Yanxatech System Industries Limited delivers highly controlled polymerization distributions to meet target viscosity indexes and melting behaviors.
Procuring raw ingredients on a global scale demands verified accountability. Global chemical standards dictate that PEG utilized in pharmaceutical settings must adhere strictly to the United States Pharmacopeia (USP), European Pharmacopoeia (Ph. Eur.), and Food Chemicals Codex (FCC) monographs. Our manufacturing partners implement gas chromatography (GC) and gel permeation chromatography (GPC) to verify the narrowness of the polydispersity index (PDI) and ensure the absence of free ethylene glycol and diethylene glycol impurities below 0.25%.
Understanding the exact physical characteristics relative to the degree of polymerization (n) is critical for strategic formulation design. The table below delineates the properties of our primary wholesale PEG offerings:
| PEG Grade | Average Mol. Weight (g/mol) | Physical State at 25°C | Viscosity at 99°C (cSt) | Hydroxyl Value (mg KOH/g) | Primary Sector Application |
|---|---|---|---|---|---|
| PEG 200 | 190 - 210 | Clear, viscous liquid | 4.0 - 4.5 | 530 - 590 | Chemical intermediates, humectants, agrochemical solvents |
| PEG 400 | 380 - 420 | Clear, viscous liquid | 6.8 - 8.0 | 267 - 295 | Liquid dosage formulations, cosmetics, ink vehicle formulations |
| PEG 600 | 570 - 630 | Clear liquid / pasty mass | 9.9 - 11.3 | 178 - 197 | Paper coating plastifiers, textile lubricant additives |
| PEG 1500 | 1400 - 1600 | Waxy solid or paste | 26 - 32 | 70 - 80 | Ointment bases, water-soluble lubricant binders |
| PEG 4000 | 3600 - 4400 | White flakes or powder | 110 - 170 | 25 - 32 | Tableting excipient, rubber processing release agents |
| PEG 6000 | 5400 - 6600 | White flakes or powder | 200 - 270 | 16 - 22 | Pharmaceutical binder, ophthalmic drops, solid dispersion matrix |
| PEG 8000 | 7000 - 9000 | White flakes or powder | 260 - 380 | 12 - 16 | Wood preservation, detergent tablet binder, mold release agent |
As industry standards evolve toward green chemistry and bio-compatible materials, PEG remains at the forefront of structural modification. The versatility of PEG is rooted in its terminal hydroxyl groups, which can undergo etherification, esterification, or amination to yield customized surfactants, polyurethane polymers, and block copolymers. Yanxatech is actively engaged in aligning PEG raw materials with macroscopic changes across major industries:
The covalent attachment of PEG chains to therapeutic proteins and peptides—known as PEGylation—masks the agent from the host immune system, extending systemic circulation half-life and decreasing immunogenicity. High-purity, ultra-low polydispersity grades are critical for therapeutic success.
During high-pressure compaction, PEG serves as an outstanding binder and plasticizer for green-body ceramic manufacturing and metal alloy powders. It clean-burns completely during sintering, leaving no carbonaceous residue, ensuring high density and high tensile strength.
Used as an inert carrier, solvent, and dispersant in pesticide, fungicide, and herbicide formulations. Its non-toxic profile ensures compliance with environmental safety regulations while maximizing the efficacy of active ingredients on crops.
Yanxatech System Industries Limited (YANXA) is one of the growing suppliers in the field of specialty materials in China. Starting from a fledgling small business unit in 2008, YANXA has been driven by a passion for developing a broad international market in the areas relating to the chemical and mechanical industries.
Thanks to our team's enduring, persistent work and our business partners' long-lasting support, YANXA has steadily and vigorously grown into an enterprise of excellence, delivering high-performance products and services relating to specialty chemicals. We cooperate with leading Chinese manufacturers and renowned chemical research institutes to supply top-tier liquid rubber, nitrates, and atomized metal and metal-alloy powders.
Quality, safety, and efficiency prevail over all other values in our business. We care deeply about what our customers need—from standard bulk product orders to unique, custom specifications required for newly developed applications. We work quickly to deliver products in perfect technical conformity.
Because chemical manufacturing exposes workers and environments to greater safety risks than other industrial sectors, we undertake all operations in a highly regulated, safe manner to ensure the protection of human health and environmental preservation.
Providing fundamental chemical building blocks with strict technical purity, packaging security, and high reliability.
A colorless liquid that is easily polymerized and highly soluble in water, alcohol, and ether. We supply formalin as a 37-50% formaldehyde solution, using a small, controlled amount of methanol as a stabilizer to prevent polymerization during transport.
Also known as HMTA, this white crystalline powder is produced by reacting formaldehyde and ammonia. It is widely used as a key intermediate in phenolic resin molding compounds, explosives, rubber vulcanization, and medicine.
A solid, white crystalline powder with a strong formaldehyde odor. As a linear polymer of formaldehyde, it does not have a fixed melting point. It dissolves quickly, serving as an efficient source of dry formaldehyde gas.
Our engineering roadmap for developing sustainable polymer technologies and advanced high-density alloy powders.
Implementing state-of-the-art reactor automation loops to narrow the polymer molecular distribution (PDI < 1.05). This minimizes trace impurities, which is essential for pharmaceutical formulations and drug delivery.
Investing in catalytic pathways to synthesize ethylene glycol intermediates from renewable agricultural biomass. This helps lower the overall carbon footprint of our commercial PEG and surfactant lines.
Developing specialized high molecular weight block copolymers designed for powder metallurgy, advanced ceramics, and automotive lithium-based batteries.
Shipping dangerous goods and specialty chemicals internationally requires careful attention to safety regulations and compliance. Yanxatech is fully equipped to handle global shipping, ensuring all documentation is accurate and complete. Every order is accompanied by a Certificate of Analysis (CoA), detailed Safety Data Sheets (SDS) in accordance with GHS regulations, and complete cargo declarations.
We work closely with leading ocean shippers, customs brokers, and specialized dangerous goods transportation services to ensure your chemical shipments arrive safely, efficiently, and in compliance with local regulations.
Providing clear, direct answers to common questions about bulk specifications, ordering terms, and shipping procedures.
Expanding our reach across electronic gases, liquid rubber technologies, and high-purity metal powders.
Yanxatech
