RT Journal Article
SR Electronic
T1 Structural, Morphological, and Kinetic Aspects of Potassium Hydrogen Tartrate Precipitation from Wines and Ethanolic Solutions
JF American Journal of Enology and Viticulture
JO Am J Enol Vitic.
FD American Society for Enology and Viticulture
SP 169
OP 179
DO 10.5344/ajev.1988.39.2.169
VO 39
IS 2
A1 R. Rodriguez-Clemente
A1 I. Correa-Gorospe
YR 1988
UL http://www.ajevonline.org/content/39/2/169.abstract
AB The morphology of potassium hydrogen tartrate (KHT) crystals precipitated from ethanol-water solutions and from white wines from the Penedes (Spain) is reported. In each case, the rate of precipitation is influenced by agitation, supersaturation, and temperature. Precipitation of KHT from wines differs from that from ethanol-water solutions because of impurities which affect growth and final crystal morphology. Crystal structure data, the equilibrium forms, and the growth forms of KHT are defined, and a model of impurity-crystal surface interaction has been proposed to explain crystal formation through the precipitation process and the growth process.