Product Name:
Polyethylene Glycol (PEG)
CAS No.:
25322-68-3
Synonyms:
PEG, Poly(ethylene oxide), PEO (depending on molecular weight)
Appearance:
Colorless to slightly yellow, viscous liquid or waxy solid (depending on molecular weight)
Product details:
| Test items |
Analytical
methods |
Standard | Result |
Result
found |
| Appearance (25 ºC ) |
Current EP |
White or almost white
solid with
a
waxy or paraffifin-like appearance ve ry soluble in water and in methylene chloride , freely soluble in ethanol (96 per cent), practically insoluble in fatty oils and in mineral oils |
Conforms | Qualified |
|
Identification |
Current EP | A | Conforms | Qualified |
| Current EP | B | Conforms | Qualified | |
| Current EP | C | Conforms | Qualified | |
| Appearance of solution | Current EP | Meet requirements | Conforms | Qualified |
|
Completeness and Col
or
of
Solution |
Current USP |
Meet requirements |
Clarity
and
color
of solution |
Qualified |
| Acidity or alkalinity | Current EP | Meet requirements | Conforms | Qualified |
| Acidity and a lkalinity | Current USP |
~
4 . 5 7 . 5 |
5 . 8 | Qualified |
| Average Molecular Weight | Current USP | 1350~ 1650 | 1500 | Qualified |
| Viscosity (98 .9 ºC , cst ) | Current USP | 26~33 | Conforms | Qualified |
| Viscosity (20 ºC , mPa · s) | Current EP | 34~50 | Conforms | Qualified |
| Freezing point (ºC) | Current EP | 42~48 | 4 4 | Qualified |
| Hydroxyl value | Current EP | 70~80 | 74.8 | Qualified |
| Reducing substances | Current EP | Meet requirements | Conforms | Qualified |
| Formaldehyde ( ppm) | Current EP | ≤ 30 | Conforms | Qualified |
| Dioxan( ppm ) | Current EP | ≤ 10 | ND | Qualified |
| 1,4- Dioxane ( μg/g ) | Current USP | ≤ 10 | ND | Qualified |
| Water (%) | Current EP | ≤ 1 .0 | 0. 1 % | Qualified |
| Sulfated ash (%) | Current EP | ≤ 0.2 | 0 .08 | Qualified |
| Residue on Ignition ( %) | Current USP | ≤ 0. 1 | < 0.1 | Qualified |
| Parameter | Typical Value |
|---|---|
| Molecular Weight (MW) | PEG-200 ~ PEG-6000+ |
| Appearance | Clear liquid or white solid |
| pH (5% in water) | 4.5-7.5 |
| Hydroxyl Value (mgKOH/g) | Varies by MW |
| Moisture Content | ≤ 0.5% |
| Viscosity (25°C) | Varies by MW |
| Melting Point (°C) | ~4°C (PEG-200) to ~65°C+ (PEG-6000) |
| Solubility | Soluble in water, alcohol |
Boiling Point: >250°C (depends on MW)
Density: ~1.12-1.14 g/cm³
Viscosity: Increases with molecular weight
Hygroscopicity: Slightly hygroscopic
Odor: Odorless or mild
Pharmaceutical: Used as base for ointments, laxatives, tablet binders
Cosmetics & Personal Care: Moisturizers, creams, lotions, shampoos
Industrial: Lubricants, antistatic agents, textile processing
Food Industry: Used as food additive, carrier or coating agent
Paints & Coatings: Flow control and dispersing agent
Adhesives & Sealants: Plasticizer and binder
Pharmaceuticals
Cosmetics & Personal Care
Food & Beverage
Plastics & Polymers
Paints & Coatings
Textile & Leather
Agriculture
Electronics & Semiconductors