95172 Sigma

Poly(ethylene glycol)

BioUltra, 20,000

Synonym: PEG

Properties

Related Categories Essential Chemicals, Inorganic Salts, Solutions and Reagents, Materials Science, PEG and Oligo Ethylene Glycol, Poly(ethylene glycol),
vapor density   >1 (vs air)
vapor pressure   <0.01 mmHg ( 20 °C)
product line   BioUltra
autoignition temp.   581 °F
mol wt   Mr ~16000-24000
impurities   insoluble matter:, passes filter test
  ≤0.001% peroxides (as H2O2):
pH   5.5-7.0 (25 °C, 50 mg/mL in H2O)
mp   63-66 °C
solubility   H2O: soluble50 mg/mL at 25 °C, clear, colorless
anion traces   chloride (Cl-): ≤50 mg/kg
  sulfate (SO42-): ≤50 mg/kg
cation traces   Al: ≤5 mg/kg
  As: ≤0.1 mg/kg
  Ba: ≤5 mg/kg
  Bi: ≤5 mg/kg
  Ca: ≤10 mg/kg
  Cd: ≤5 mg/kg
  Co: ≤5 mg/kg
  Cr: ≤5 mg/kg
  Cu: ≤5 mg/kg
  Fe: ≤5 mg/kg
  K: ≤200 mg/kg
  Li: ≤5 mg/kg
  Mg: ≤5 mg/kg
  Mn: ≤5 mg/kg
  Mo: ≤5 mg/kg
  Na: ≤200 mg/kg
  Ni: ≤5 mg/kg
  Pb: ≤5 mg/kg
  Sr: ≤5 mg/kg
  Zn: ≤5 mg/kg
λ   50 mg/mL in H2O
UV absorption   λ: 260 nm Amax: 0.10
  λ: 280 nm Amax: 0.15

Price and Availability

Suggested Laboratory Gloves


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Custom Polymer Synthesis

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