Polyethylene Glycol

Polyethylene Glycol 200 (PEG 200) is a clear, colorless, viscous liquid polyether with an average molecular weight near 200 and CAS number 25322-68-3. The number in the name refers to that average molecular weight, which places it at the low, liquid end of the PEG family.

PEG 200 is fully water-soluble and also dissolves in many organic solvents, making it a versatile carrier and modifier across industrial formulations. It is hygroscopic, meaning it readily absorbs moisture from the air, and it has very low volatility and a neutral pH.

• Appearance: clear, slightly viscous liquid at room temperature
• Density: approximately 1.12 g/mL
• Solubility: miscible with water; soluble in many polar organics

This is a technical (industrial) grade intended for manufacturing and process applications, not a pharmaceutical product.

This product is Technical Grade PEG 200, supplied as a ready-to-use liquid — no melting or reconstitution is required. Technical grade is the correct specification for industrial formulating, process, and manufacturing applications where a consistent, high-purity polyether is needed without pharmacopeial documentation.

PEG is sold as a molecular-weight family, and the grade number tells you the average molecular weight and physical form:

• PEG 200, 300, 400, 600: liquids at room temperature (lower MW = thinner)
• PEG 600 to 1000: soft, semi-solid to waxy
• PEG 1450, 3350 and higher: solid flakes or powders

Choose PEG 200 when you need the lowest-viscosity, fully liquid member of the family. Buyers requiring pharmaceutical-quality material for drug, supplement, or ingestible applications need USP-grade PEG, which this technical grade is not.

PEG 200 is used across industrial formulating as a humectant, plasticizer, lubricant, and functional-fluid component. Its water solubility, low volatility, and mild character make it a workhorse carrier in many process streams.

• Humectant in industrial and cleaning formulations to retain moisture and prevent drying
• Plasticizer to add flexibility to films, adhesives, and coatings
• Heat-transfer and hydraulic-fluid component where a water-soluble, low-volatility polyether is preferred
• Soldering flux carrier and vehicle for electronics assembly chemistries
• Ceramics and powder-metallurgy binder that burns out cleanly
• Mold release and lubricant for rubber, metal, and plastic processing

It also serves as a dispersant and coupling agent, helping blend otherwise incompatible ingredients. Because it is hygroscopic, it doubles as a moisture-conditioning additive in many recipes.

Store PEG 200 in tightly closed original containers, indoors, in a cool, dry, well-ventilated area away from direct sunlight and sources of ignition. Because PEG 200 is hygroscopic, the most important storage practice is keeping containers sealed — exposure to open air lets it absorb atmospheric moisture, which changes its water content over time.

• Keep drums and totes closed when not dispensing
• Avoid prolonged exposure to air and humidity
• Store away from strong oxidizers
• Protect from freezing and from excessive heat

Use compatible materials for storage and transfer; PEG 200 is generally compatible with stainless steel, HDPE, and polypropylene. If material is transferred to secondary containers, label them clearly and reseal promptly. Return partially used containers to sealed storage rather than leaving them open on the floor.

Technical-grade PEG 200 typically retains its quality for at least two to three years from date of manufacture when stored sealed in its original container under cool, dry conditions. PEG 200 is a chemically stable polyether and does not readily degrade under normal storage.

The most common change over time is a rise in water content, since the product is hygroscopic and will pick up atmospheric moisture if containers are left open. Keeping drums and totes tightly closed is the single biggest factor in preserving shelf life.

• Best stored sealed, indoors, away from heat and humidity
• Inspect before use for clarity and expected appearance
• Absorbed moisture, not chemical breakdown, is the usual limiting factor

Material that has been well maintained often remains usable beyond its nominal shelf life; verify against your own specifications before use in critical processes.

PEG 200 is a low-hazard industrial liquid, but standard chemical-handling precautions still apply. Wear chemical-resistant gloves and safety glasses, and work in a well-ventilated area. Avoid contact with eyes and prolonged or repeated contact with skin.

The product has very low volatility and a high flash point (above 300°F), so it is not flammable under normal handling conditions, though it should still be kept away from strong oxidizers and open flame. It is not classified as a hazardous material for standard ground shipping.

• Use gloves, eye protection, and adequate ventilation
• Prevent spills; PEG 200 can make floors slippery
• Keep away from strong oxidizing agents
• Wash hands after handling

Always consult the Safety Data Sheet (SDS) for complete first-aid, spill-response, and personal-protective-equipment guidance before use. This product ships in 1-2 business days.

PEG 200 is not classified as a hazardous material for standard ground transport and ships non-hazmat from Taylor, TX. It is a stable, water-soluble polyether that does not carry a DOT hazard class for typical quantities, which simplifies both shipping and waste handling.

Dispose of unused product, spill residues, and contaminated materials in accordance with all applicable federal, state, and local regulations. Waste characterization is the generator's responsibility, and it can be affected by whatever the PEG has been mixed with in your process.

• Do not discharge to storm drains or surface water
• Contain spills with inert absorbent and collect for disposal
• Characterize waste before disposal, accounting for contaminants

Refer to the Safety Data Sheet for disposal considerations, and coordinate with a licensed waste-management provider where required by your jurisdiction. This product ships in 1-2 business days.