RT Journal Article SR Electronic T1 Colloidal Silicon Dioxide as a Fining Agent for Wine JF American Journal of Enology and Viticulture JO Am J Enol Vitic. FD American Society for Enology and Viticulture SP 108 OP 112 DO 10.5344/ajev.1977.28.2.108 VO 28 IS 2 A1 Gregory D. Hahn A1 Phillipp Possmann YR 1977 UL http://www.ajevonline.org/content/28/2/108.abstract AB "Kieselsol," a generic name for an aqueous colloidal suspension of silicon dioxide, was first used in Germany as a fining agent in conjunction with gelatin during World War II, when tannin was unobtainable. It fell into disuse until recently, when a review of its physical and chemical characteristics indicated that it would be a useful and desirable substitute for tannin in wine and fruit-juice fining. Freshly fermented apple wine was employed in a comparison between tannin-gelatin and Kieselsolgelatin finings.