Polyethylene glycol 4000
Chemical Name: Polyethylene glycol
Synonyms: Poly (ethylene glycol)PEG.
Molecular Formula: HO(CH2CH2O]nH
Specification
Type    Appearance  (25°C) Colour (Pt-Co) Hydroxyl value(mgKOH/g) Molecular Weight pH
PEG 200 Colorless liquid ≤40  510~623   180~220      5.0~7.0           
PEG 300 Colorless liquid ≤40  340~416   270~330      5.0~7.0
PEG 400 Colorless liquid ≤40  255~311   360~440      5.0~7.0
PEG 600 Colorless liquid ≤40  170~208   540~660      5.0~7.0
PEG 800 White paste      ≤40  127~156   720~880      5.0~7.0
PEG 1000 White paste     ≤40  102~125   900~1100     5.0~7.0
PEG 1500 White solid     ≤40  68~84     1350~1650    5.0~7.0
PEG 2000 White flake     ≤50  51~63     1800~2200    5.0~7.0
PEG 3000 White flake     ≤50  34~42     2700~3300    5.0~7.0
PEG 4000 White flake     ≤50  26~32     3600~4400    5.0~7.0
PEG 6000 White flake     ≤50  16~21     5400~7000    5.0~7.0
PEG 8000 White flake     ≤50  12~16     7200~8800    5.0~7.0
PEG Application:  Be used in pharmaceuticals, cosmetics, chemical engineering, rubber, metal finishing, pesticide, pigment and spinning & weaving fields. It is also one of the main materials of ester type surface active agent.