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95172 Sigma

Poly(ethylene glycol)

BioUltra, 20,000

Synonym: PEG

Properties

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   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


Laboratory GlovesThis substance has been tested against several types of hand protection for CE compliance. Click below to find the recommended gloves for handling this product.




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