Both propylene glycol ether and ethylene glycol ether belong to binary alcohol ether solvents. The toxicity of propylene glycol
ether to human body is lower than that of ethylene glycol ether products, and it belongs to low toxic ether. Propylene glycol
methyl ether has a slight ethery flavor, but does not have a strong pungent odor, making it more widely used and safe. Because of
its molecular structure has both ether group and hydroxyl group, it has excellent solubility, suitable volatile rate and
reactivity and other characteristics and has been widely used