These 19/38 apparatus for quantitative analysis of various industrial waste waters, saline and reagent grade water.

• Manufactured from 33 expansion, low extractable borosilicate glass

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. The cyanide ion in the absorbing solution is then determined colorimetrically or by volumetric titration.