Specification: PEG300 Appearance( 25 ) : Colorless viscous liquid Viscosity m¡ / s) : 28-35 Average molecular weight: 270-330 PH value: 5-7 Ethylene glycol or diethylene glycol d0.25% Ignition Residue: d0.2 Arsenic salts ppm d3 Heavy metal ppm d5  Main function:  This series products are better used for soft capsules due to their non-toxic, Non-irritating with excellent water solubility, compatibility, lubrication, adhesion and thermal stability character.