Specification: PEG400 Appearance( 25 ) : Colorless viscous liquid Clarity and color of solution: Non-concentraded, not deeper than 2 # standard solution Average molecular weight: 370-430 Viscosity: m¡ / s : 37-45 Ethylene glycol or diethylene glycol d0.25% PH value: 4-7 Arsenic salts ppm d3 Ignition Residue: d0.2 Heavy metal ppm d5 Quality standard: CP2000  Storage: This product is non-toxic and flame retardant. Regarded as a general shipments of chemicals, it should be sealed and stored in dry place.  Usage: PEG400 is better for making the soft gelatin capsules. As the PEG400 is liquid, it has a broad compatibility with various solvents, and is Good solvent and solubilizer.It has been widely used in liquid preparations, such as the oral solution, eye drops etc.