Tripropylene glycol is a colorless to light yellow liquid at room temperature and pressure. It has a certain solubility in water and is easily soluble in common organic solvents. It has the characteristics of low toxicity, low vapor pressure, and medium viscosity. It is a raw material that can be used in various radiation curing formulations. It usually undergoes an esterification reaction with acrylic acid to form tripropylene glycol diacrylate.