Environ. Sci. Technol. 1988, 22, 523-526
Nature and Properties of Some Chlorinated, Lipophilic, Organic Compounds in Spent Liquors from Pulp Bleaching. 1. Liquors from Conventional Weaching of Softwood Kraft Pulpt A. Bruce McKague,* Marle-Claude Kolar, and Knut P. Kringstad
STFI (Swedish Pulp and Paper Research Institute), Box 5604, S-114 86 Stockholm, Sweden A sample of spent chlorination liquor from the bleaching of softwood kraft pulp was fractionated to isolate the chlorinated lipophilic compounds. These were investigated by gas chromatography and gas chromatography/mass spectrometry, and a number were identified as chlorinated diones and enol lactones. The compounds were found to be weakly mutagenic and to have limited potential for bioaccumulation. Quantities ranged from
