Chemical Name:
Polyethylene Glycol
Trade Names:
PEG 3350/Industrial grade
Introduction:
Polyethylene glycols (PEGs) are condensation polymers of ethylene oxide and water with the general formula H(OCH2CH2)nOH. They are the most commercially important type of polyether. The low molecular weight compounds up to 700 are colorless, odorless viscous liquids with a freezing point from -10˚C (diethylene gycol), while polymerized compounds with higher molecular weight than 1,000 are wax like solids with melting point up to 67˚ C for n=180. While PEGs with different molecular weights find use in different applications and have different physical properties (e.g. viscosity) due to chain length effects, their chemical properties are nearly identical.
The numbers that are often included in the names of PEGs indicate their average molecular weights, e.g. a PEG with n=9 would have an average molecular weight of approximately 400 and would be labeled PEG 400. Most PEGs include molecules with a distribution of molecular weights, i.e. they are polydisperse.
PEGs are soluble in water, methanol, benzene, dichloromethane and is insoluble in diethyl ether and hexane.
Polyethylene glycols are non-toxic, odorless, neutral, lubricating, nonvolatile and nonirritating and are used in a variety of Industrial applications such as adhesives, ceramic, pulp and paper, metalworking, lubricants, agrochemicals, detergents and cleaners. more
Specification
|
No. |
Test |
Standard |
Reference |
|
1 |
Color of Solution, 5g/50ml of Water |
Colorless |
USP33-NF28 |
|
2 |
Viscosity at 98.9˚C, cSt |
76-110 |
USP33-NF28 |
|
3 |
pH, 10% Solution |
4.5-7.5 |
DIN19268 |
|
4 |
Hydroxyl Value, mg KOH/g |
31.9-35.5 |
ASTM D4252 |
|
5 |
Average Molecular Weight, g/mol |
3182-3517 |
— |
|
6 |
Water, percent |
Max. 2 |
ASTM E203 |
Packaging:
|
Packaging Type |
Net weight |
No. of bags per pallet |
No. of pallets in a 20 FLC |
Shelf life |
IMCO Class |
|
PE bags |
25 Kgs |
40 |
20 |
2 yrs |
Non-Imco |
Notice:
We can produce other types of industrial grades of polyethylene Glycols (PEGs), moreover customized packing will be available according to customer’s request.
Safety, Handling & Storage:
Full information on the safety, handling and storage of industrial PEGs is available in the corresponding Material Safety Data Sheet (MSDS).
