ABSTRACT
Dipropylene glycol may be released to the environment via effluents at sites where it is produced or used as a solvent, and a plasticizer in polyester and alkyd resins, and in reinforced plastics. Dipropylene glycol is not expected to undergo hydrolysis or direct photolysis in the environment. The miscibility of dipropylene glycol in water suggests that volatilization, adsorption and bioconcentration are not important fate processes. This is supported by the estimated Henry's Law constant, which indicates that volatilization of dipropylene glycol from natural waters and moist soil should be extremely slow. A low estimated log BCF suggests dipropylene glycol should not bioconcentrate among aquatic organisms. A low Koc indicates dipropylene glycol should not partition from the water column to organic matter contained in sediments and suspended solids, and it should be highly mobile in soil.
