Polyethylene glycol (PEG) is a condensation polymer of ethylene oxide and water.
Polyethylene Glycol has been used in the precipitation of proteins, as a fusing agent in enhancing the effect of macrophages on hybridoma, in the separation and purification of biomolecules and in induction of cell hybridization.
PEG's are susceptible to oxidative degradation in the presence of air. Minimizing the exposure of PEG to elevated temperatures and/or exposure to oxygen, or addition of an antioxidant can limit the amount of degradation. PEGs do not hydrolyze or deteriorate upon storage. PEGs do not support the growth of molds.
Grade: Molecular biology reagent
Key Applications: Precipitation of proteins, Separation and purification of biomolecules
Product Type: Biochemicals
Biochemical Category: Surfactants
Chemical Class: Surfactants
Density: 1.0845 g/mL (70°C) (Lit.)
Viscosity: Viscosity NF (210°F): 769 cSt (Lit.)
Auto Ignition: 581 °F(Lit.)
Melting Point: 56 - 66°C
Vapor Density: >1 (vs air)(Lit.)
Vapor Pressure: <0.01 mmHg at 20°C(Lit.)
Presentation: White Prills
Format: Prills
pH: 5.0 - 7.0(5% aq soln)
Detection Method: FTIR
NOTES: average value of n = 181.4
Solubility: Soluble in water (approximately 630 mg/mL, 20°C). PEGs are also soluble in many polar solvents such as acetone, alcohols and chlorinated solvents. They are insoluble in nonpolar solvents such as hydrocarbons.
Storage & Handling: Store at Room Temperature (15-30°C).