The use of propylene glycol Propylene glycol has good viscosity and hygroscopicity and is non-toxic, so it is widely used as hygroscopicity, antifreeze, lubricant and solvent in the food, pharmaceutical and cosmetic industries.
1, 2-propanediol is an excellent solvent for flavoring and pigment. Because of its low toxicity, it is used as a solvent for spices and edible pigments in the food industry.
