Polyethylene Glycol, (C2nH4n+2On+1), is synthesized by ring-opening polymerization of ethylene oxide. This synthesis process gives PEG a range of molecular weights and distributions from 300 grams per mole to 10,000,000 grams per mole.PEG 4000 has a molecular weight of 4000 and is colorless, inert, odorless, and non-volatile. PEG is biocompatible, hydrophilic, dissolves readily in water without changing the color odor or taste, and is nontoxic. The number 4000 mentioned with the Polyethylene Glycol 4000, describes its average molecular weight. Lab Grade chemicals possess reasonable purity but do not comply with any official standard for quality or purity. It is recommended to use Lab Alley’s Polyethylene Glycol 4000, Lab Grade be used in training institutes, research labs, and for other commercial applications.
PEG 4000 is used in research labs for the precipitation of proteins, viruses, DNA and RNA.
PEG 4000 is used to synthesize hydrogels
PEG 4000 is used as an additive in cement to aid in solvency and lubrication
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Product Information
More Information
CAS
25322-68-3
PubChem ID
15521049
Grade
Lab Grade
Color
Max 30
Physical form
Solid
Appearance
White/almost white, crystal powder
pH
4.50 - 7.50
Melting point
58°C (136°F)
Solubility
Soluble in water
Molecular formula
C2nH4n+2On+1
Molecular weight
3700-4400
Autoship Available
No
Heavy metals
Max 5.00 ppm
Hydroxyl Value
25.50 - 30.30 mg KOH/g
KosherID
HKJ-GMXR
Loss on ignition
Max 0.10 %
Viscosity
110.0 - 158.0 cSt
Reviews
Safety and Shipping
This chemical is not considered hazardous by the 2012 OSHA Hazard Communication Standard (29 CFR 1910.1200)
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This chemical will only be shipped to addresses that are:
Businesses
Schools and Universities
Laboratories
If you use a residential address during checkout, we will automatically remove this item from your order prior to shipping.
If your order includes more than 1 lb of mercury, it must be shipped to a commercial address, lab, or school.
Please note that we’re unable to ship mercury—of any amount—to apartments or shipping/parcel stores.
Ineligible orders will be automatically canceled.
If you are purchasing SDA in 5 gallons or more, you are required to provide a TTB permit showing how much of the product you are allowed to purchase per year. Please email your TTB permit to customercare@laballey and include your Order Number.
