Kaliapparat

A kaliapparat is a laboratory device invented in 1831 by Justus von Liebig (1803–1873) for the analysis of carbon in organic compounds.

[1] The device, made of glass, consists of a series of five bulbs connected and arranged in a triangular shape.

The gaseous products along with the water vapor produced by combustion are passed through the kaliapparat, which is filled with a potassium hydroxide (KOH) solution.

The global reaction, ignoring intermediate steps and the corresponding ionic dissociation, can be written as follows: Subtracting the mass of the kaliapparat before the combustion from that measured after the combustion gives the amount of CO2 absorbed.

A stylized symbol of a kaliapparat is used in the American Chemical Society logo since 1909,[2] originally designed in the early 20th century by Tiffany's Jewelers.