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Polyethylene Glycol 1500 (CAS: 25322-68-3) occupies a unique physical state within the polyether glycol chain—straddling the boundary between viscous high-order liquids and brittle wax solids. Manufactured via strictly controlled catalytic addition polymerization of ethylene oxide to mono-ethylene glycol or diethylene glycol, our PEG 1500 achieves exceptional polydispersity control.
By implementing real-time DMC (double metal cyanide) and alkaline catalytic continuous loops, our reactors suppress broad oligomer variation, ensuring predictable melting crystallization thresholds and consistent shear thinning behavior.
Rheology ControlMulti-stage vacuum falling film degassing removes unreacted volatile traces of monoethylene glycol (MEG), diethylene glycol (DEG), and residual 1,4-dioxane down to ppb levels compliant with USP/EP standards.
Pharma Grade SafetyFormulated with optional nitrogen blanketing protection or food/pharma compliant hindered phenolic antioxidants (e.g., BHT-free variations), eliminating auto-peroxidation risk throughout intercontinental transit cycles.
Supply Resilience| Analytical Parameter | Industrial Grade Spec | USP / BP / EP Pharma Grade | Methodology Standard |
|---|---|---|---|
| Appearance (25°C) | White to light yellow waxy paste/flake | Pure white waxy solid or smooth paste | Visual / Colorimetric APHA |
| Average Molecular Weight | 1350 – 1650 | 1400 – 1600 | Hydroxyl Value Calculation |
| Hydroxyl Value (mg KOH/g) | 68.0 – 83.0 | 70.0 – 80.0 | Potentiometric Titration (ISO 4326) |
| Solidification Point (°C) | 42.0 – 46.0 | 44.0 – 48.0 | ASTM D87 / Ph. Eur. 2.2.18 |
| Kinematic Viscosity (98.9°C, mm²/s) | 25.0 – 32.0 | 26.0 – 30.0 | Ubbelohde / ASTM D445 |
| Residue on Ignition / Ash | ≤ 0.1% | ≤ 0.05% | Gravimetric (Ph. Eur. 2.4.16) |
Overcoming global polyether supply instability through integrated domestic ethylene crack downstream facilities, automated closed-loop polymerization, and zero-contamination bulk logistics.
Direct pipeline linkage to mega-refinery ethylene oxide units safeguards continuous feed volumes, decoupling wholesale pricing from spot market volatility and containerized transit premiums.
Fully sealed Yokogawa Distributed Control Systems track exotherm propagation during ethoxylation, executing real-time micro-dosing to retain narrow isomer bands.
Supplied in liquid bulk (heated ISO tanks at 60°C), solid pastilles in multi-layer 25kg PE moisture-barrier valve bags, or hot-poured 200kg steel drums nitrogen purged at fill.
Full EU REACH registrations, US TSCA listing, clean GHS documentation, and export-compliant Dangerous Goods clearance across major deepwater ports (Qingdao, Shanghai, Tianjin).
Polyethylene Glycol 1500 functions as an active functional component across complex production lines. Its balanced hydrophilicity and lubricity optimize multiple industrial processes.
Serves as a water-soluble binder for tablet compression, active base for rectal and vaginal suppositories, and bio-compatible plasticizer in polymeric enteric coatings without crystallizing out during curing phases.
Bio-FormulationActs as a hydrophilic soft-segment chain extender in waterborne polyurethane dispersions (PUDs), balancing breathability in synthetic leather coatings and tensile modulus in specialty elastomers.
Polymer SynthesisFunctions as a non-volatile, clean-burning lubricant in ceramic greenware binder burnout, an anti-static sizing assistant in synthetic fiber spinning, and a throwing-power enhancer in copper electroplating baths.
Surface EngineeringB2B chemical procurement requires clear visibility into upstream cost structures. PEG 1500 quotation strategies balance spot fluctuations with long-term formula hedging.
Contracts can be pegged directly to Asian ICIS Ethylene Oxide indices, giving tier-1 compounding facilities full audit trail transparency on raw material passthroughs.
Offering competitive FOB China port terms, CIF destination port routing via premier carriers (Maersk, MSC, COSCO), and DDP delivery into North American and European bonded logistics zones.
Full Container Load (FCL, approx 16-18 MT in drums or 20-22 MT in palletized bags) pricing structures yield optimal economies of scale over LCL cargo, with annual volume rebates for contracted volumes.
Aligning polyalkylene glycol manufacturing with global decarbonization, Scope 3 emission controls, and ultra-high-efficiency processing demands.
Transitioning toward bio-ethanol derived bio-ethylene oxide pathways to supply Drop-In ISCC PLUS certified PEG 1500 with zero property deviation.
Implementing flow-chemistry microreactors to compress residence times, optimize heat transfer, and lower batch thermal histories for superior color values.
Developing catalytic oxygen scavenging purification routines that suppress peroxide value (POV) drift during prolonged oceanic warehousing.
R&D trials in glycol ether depolymerization and high-purity mono-fraction recovery to achieve circular closed-loop supply configurations.
Direct technical and operational answers to accelerate your engineering evaluation and vendor approval process.
Standard production and release dispatch runs 7 to 12 calendar days from order confirmation and technical parameter lock. Custom solid flake processing or specific packaging variations typically ship in 14 days.
PEG 1000 has a soft paste consistency melting around 37°C, while PEG 2000 is a harder solid flake melting near 50°C. PEG 1500 strikes an intermediate waxy profile (solidification: 44-48°C), making it ideal when higher mechanical strength than PEG 1000 is needed without requiring high dissolution temperatures.
Although PEG 1500 is classified as non-hazardous general cargo for sea/air transport, every shipment includes a batch-specific Certificate of Analysis (COA), 16-section SDS (EU/GHS standard), non-DG shipping confirmation, and preferential Certificate of Origin (Form E, RCEP, CO).
Yes. We operate cryogenic flaking and pelletizing lines able to deliver calibrated pastilles or uniform flakes packed in neutral, customer-branded, or palletized shrink-wrapped 25kg PE-lined paper sacks.
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