Product Category: Industrial Raw Materials / Formulation Chemicals
Chemical Name: Polyethylene Glycol
Alternative Names: PEG / Polyethylene Oxide – lower molecular weight convention
CAS Number: 25322-68-3
General Structure: HO–(CH₂CH₂O)n–H
Appearance: Grade dependent — clear liquid, semi-solid or white solid
Product Overview
Polyethylene Glycol is a family of water-soluble polymers available across a wide range of average molecular weights.
The PEG number — such as PEG 200, PEG 400, PEG 600, PEG 1000 or PEG 4000 — broadly reflects the product’s average molecular weight.
This molecular weight strongly affects viscosity and physical form, so Mining Chemicals SA should identify the PEG grade on quotations and technical documentation whenever possible.
Typical Grade Characteristics
| PEG Grade | Typical Physical Form |
| PEG 200 | Clear liquid |
| PEG 300 | Clear liquid |
| PEG 400 | Clear viscous liquid |
| PEG 600 | Viscous liquid / semi-solid depending on temperature |
| PEG 1000+ | Increasingly semi-solid / solid |
| PEG 4000 | White solid / flakes or powder |
BASF confirms that lower molecular-weight PEGs are liquids while higher-molecular-weight PEG grades become semi-solids or solids; the numerical designation reflects approximate average molecular weight.
Applications
Depending on PEG molecular weight:
- Industrial formulations
- Detergents and cleaners
- Lubricants
- Humectants
- Solubilisers
- Plasticisers
- Processing aids
- Binder systems
- Personal-care formulations
- Pharmaceutical formulations where certified grade is supplied
- Chemical intermediates
Key Benefits
- Water soluble
- Non-ionic
- Good formulation compatibility
- Available across a broad viscosity range
- Useful as humectant, binder, lubricant and solubiliser
Important Product Note
Because your product list currently states only Polyethylene Glycol, the website should not advertise a single molecular weight.
Customers can be asked to specify the required PEG grade / molecular weight when requesting a quotation.
Suggested CTA
Please specify your required PEG molecular weight when requesting a quotation.
