Cyanide distillation apparatus are designed for determination of soluble and insoluble cyanides in water. Cyanide as hydrocyanic acid (HCN) is released from cyanide complexes by means of a reflux-distillation and absorbed in a scrubber containing a sodium hydroxide solution. Inlet tubes have funnel openings for easy addition of acid. Corning, Wheaton and Kontes brands of cyanide distillation apparatus are trusted brands in the lab and also meet the requirements of E.P.A. SW-846 methods 9010 and 9012, and ASTM method D-2036.
The Midi-Vap 4000™ distillation system is designed to support the semi-automatic colorimetry methods for drinking, ground, surface and saline waters as well as domestic and industrial wastes. With the glassware provided in this system, it can be used for the analysis of cyanide. The unit footprint is approximately 16” x 30”, and the height when assembled with the glassware is 24”. The system features a ten-position heater block for consistent, even heating and a Watlow EZ-Zone digital controller with an easy-to-read LED display and automated shut-off. With a 50 mL sample volume, less start-up material translates to reduced analysis time and less reagent waste for disposal. Reference: EPA/600/R-93/100: Methods for the Determination of Inorganic Substances in Environmental Sample.
Corning® PYREX® volatile oil distilling apparatus are available in models designed either for use with oils heaver than water or oils lighter than water. The apparatus consists of a Clevenger-type volatile oil trap and a cold finger condenser with standard taper joints and a long neck round bottom boiling flask. Volatile oil traps are graduated in increments commensurate with the size of the apparatus.