polyethylene glycol 200(PEG200)

Product polyethylene glycol 200
CAS 25322-68-3
Formula HO(CH2CH2O)nH
Molecular weight 180-220
Heavy metal ÿ?
Viscosity 22-26
PH Value 5-7
Freezing point -52-48
Arsenic salts(ppm) ÿ?
Ignition Residue ÿ?.2
Ethylene glycol or diethylene glycol ÿ?.25%
Package 230KG/CARTON

Clarity and color of solution:
Non-concentraded, not deeper than 2 # standard solution

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.

Function:
PEG is being used in the repair of motor neurons damaged in crush or laceration incidence in vivo and in vitro. When coupled with melatonin, 75% of damaged sciatic nerves were rendered viable.

PEG is used in a number of toothpastes as a dispersant; it binds water and helps keep gum uniform throughout the toothpaste. It is also under investigation for use in body armor[ and tattoos to monitor diabetes.

PEG is a popular precipitant for protein crystallization, X-ray diffraction of protein crystals can reveal the atomic structure of proteins.