Polyethylene glycol (PEG) is a synthetic, water-soluble polymer made by the polymerization of ethylene oxide. It is a clear, viscous liquid or white, waxy solid, depending on its molecular weight.
PEG has a wide range of applications due to its unique properties. One of its primary uses is as a non-toxic, water-soluble base for cosmetics, medication, and food products. PEG is also used as a lubricant, plasticizer, and solvent in various applications and industries.
PEG is also used in the production of surfactants, detergents, lubricants, and inks. It is used as an adhesive and binding agent in the construction and woodworking industry. Additionally, PEG is utilized in the production of polyurethane resins and in the synthesis of polycarbonate diols for the manufacturing of thermoplastic polyurethane elastomers.
| Type | Appearance
(25ºC) | Colour
(Pt-Co) | Hydroxyl value
(mgKOH/g) | Molecular
Weight | pH |
| Polyethylene glycol PEG 200 | Colorless liquid | ≤40 | 510~623 | 180~220 | 5.0~7.0 |
| Polyethylene glycol PEG 300 | Colorless liquid | ≤40 | 340~416 | 270~330 | 5.0~7.0 |
| Polyethylene glycol PEG 400 | Colorless liquid | ≤40 | 255~311 | 360~440 | 5.0~7.0 |
| Polyethylene glycol PEG 500 | Colorless liquid | ≤40 | 205~280 | 480~530 | 5.0~7.0 |
| Polyethylene glycol PEG 600 | Colorless liquid | ≤40 | 170~208 | 540~660 | 5.0~7.0 |
| Polyethylene glycol PEG 800 | White paste | ≤40 | 127~156 | 720~880 | 5.0~7.0 |
| Polyethylene glycol PEG 1000 | White paste | ≤40 | 102~125 | 900~1100 | 5.0~7.0 |
| Polyethylene glycol PEG 1500 | White flake | ≤40 | 68~84 | 1350~1650 | 5.0~7.0 |
| Polyethylene glycol PEG 2000 | White flake | ≤50 | 51~63 | 1800~2200 | 5.0~7.0 |
| Polyethylene glycol PEG 2000 | White flake | ≤50 | 34~42 | 2700~3300 | 5.0~7.0 |
| Polyethylene glycol PEG 3350 | White flake | ≤50 | 32~40 | 3200~3450 | 5.0~7.0 |
| Polyethylene glycol PEG 4000 | White flake | ≤50 | 26~32 | 3600~4400 | 5.0~7.0 |
| Polyethylene glycol PEG 6000 | White flake | ≤50 | 16~21 | 5400~7000 | 5.0~7.0 |
| Polyethylene glycol PEG 8000 | White flake | ≤50 | 12~16 | 7200~8800 | 5.0~7.0 |
| Polyethylene glycol PEG10000 | White flake | ≤50 | 8-11 | 8600-10500 | 5.0~7.0 |
| Polyethylene glycol PEG20000 | White power | ≤50 | 5.1-6.2 | 18500-22000 | 5.0~7.0 |
| Test Method | -- | GB/T 3143 | GB/T 7383 | Calculated | GB/T 6368 |