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P4338 Sigma-Aldrich

Poly(ethylene glycol)

BioXtra, average mol wt 3,350, powder

Synonym: PEG



Related Categories Essential Chemicals, Materials Science, PEG and Oligo Ethylene Glycol, Poly(ethylene glycol), Poly(ethylene glycol) (PEG) and PEG Solutions,
vapor density   >1 (vs air)
vapor pressure   <0.01 mmHg ( 20 °C)
product line   BioXtra
form   powder
autoignition temp.   581 °F
mol wt   average mol wt 3,350
impurities   ≤0.01% Phosphorus (P)
  ≤0.1% Insoluble matter
solubility   water: soluble (PEG is soluble in water approximately 670 mg/ml, 20 °C)
density   1.0962 g/mL at 60 °C
  1.0764 g/mL at 80 °C
anion traces   chloride (Cl-): ≤0.05%
  sulfate (SO42-): ≤0.05%
cation traces   Al: ≤0.0005%
  Ca: ≤0.0005%
  Cu: ≤0.0005%
  Fe: ≤0.0005%
  K: ≤0.005%
  Mg: ≤0.0005%
  NH4+: ≤0.05%
  Na: ≤0.05%
  Pb: ≤0.001%
  Zn: ≤0.0005%
Ω-end   OH
α-end   OH



1 kg in poly bottle

2 kg in poly drum

500 g in poly bottle

General description

Polyethylene glycol (PEG) is a hydrophilic polymer. It can be easily synthesized by the anionic ring opening polymerization of ethylene oxide, into a range molecular weights and variety of end groups. When crosslinked into networks PEG can have high water content, forming “hydrogels”. PEG is a suitable material for biological applications because it does not trigger an immune response.

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Protocols & Articles


Polyethylene Glycol (PEG) Selection Guide

Polyethylene glycol (PEG), also sometimes referred to as polyethylene oxide (PEO), is a condensation polymer of ethylene oxide and water that has several chemical properties that make it useful for b...
Keywords: Antimicrobials, Bacterial conjugations, Cell culture, Chemical reactions, Chromatography, Click chemistry, Condensations, Degradations, Detergents, Gas chromatography, Immobilization, Molecular biology, PEGylations, Peptide synthesis, Pharmaceutical, Polymerization reactions, Precipitation

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