... e.g., 9-( α-perfluoroheptyl-β,β-dicyanovinyl)julolidine dye forsupercritical ethane, propane, and dimethyl ether (27); nile red dye for 1,1,1, 2- tetrafluoroethane (28); 4-nitroanisole and 4-nitrophenol ... Hemisphere DistributionMarcel Dekker, Inc.Hutgasse 4, Postfach 812, CH-4001 Basel, Switzerlandtel: 4 1-6 1-2 6 1-8 482; fax: 4 1-6 1-2 6 1-8 896World Wide Webhttp://www.dekker.comThe publisher offers discounts ... 4-nitrophenol for ethane and fluori-nated ethanes (29); 4-aminobenzophenone for fluoroform and CO2(30); phenolblue for CO2, CHF3,N2O, and ethane (31); and coumarin-153 dye for CO2,Figure...