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| Specification | Standard Range | Significance for Applications |
|---|---|---|
| English Name | Polyethylene Glycol 4000 | Standard pharmaceutical nomenclature |
| CAS Number | 25322-68-3 | Unique chemical identifier for procurement |
| Molecular Formula | H(OCH₂CH₂)ₙOH | Defines chemical structure and properties |
| Appearance | White flakes/powder | Easy handling and dissolution |
| Molecular Weight | 3,600 - 4,400 | Optimal for pharmaceutical applications |
| Structural Formula | | |
| Purity (%) | ≥ 99.0% | Exceeds USP requirements for sensitive applications |
| Hydroxyl Value | 25 - 32 mgKOH/g | Ensures good reactivity for polymer synthesis |
| pH Value (5% solution) | 5.0 - 7.0 | Neutral pH suitable for biological applications |
| Moisture Content | ≤ 1.0% | Excellent stability and extended shelf life |
| Color (Pt-Co) | 0 - 80 | Superior clarity for cosmetic applications |
| Executive Standard | USP/NF | Enhanced quality control beyond industry standards |
In pharmaceutical manufacturing, our PEG-4000 serves as an excipient for tablet binding, film coating, and sustained-release formulations. The 99.3% purity ensures minimal interference with active pharmaceutical ingredients, while the controlled molecular weight range provides optimal binding properties for solid dosage forms.
In high-end anti-aging creams, it enhances penetration of active ingredients while maintaining product stability. One luxury cosmetics manufacturer noted reduction in customer skin irritation complaints after formulating with our ultra-pure grade.
Industrial applications benefit from our PEG-4000's superior lubricating properties and thermal stability. In metalworking fluids, it provides good corrosion protection while maintaining biodegradability for environmental compliance. Our consistent hydroxyl value (27.81 mgKOH/g) ensures good performance in polymer synthesis.
For food packaging and processing equipment, our PEG-4000 meets stringent requirements for indirect food contact. The low moisture content (0.11%) prevents bacterial growth. Food manufacturers appreciate the consistent quality that eliminates batch-to-batch variations in their production processes.
