Lunge, who recommends the use of bleaching powder.
Lunge, Berichte, 1877, 10, p. 12 75); by fusing sodium benzene sulphonate with sodium formate: C6H5S03Na+-HC02Na=C6HS000Na+ NaHS0 3; by heating calcium phthalate with calcium hydroxide to 330 0 -350° C.; by heating benzotrichloride with water in a sealed tube, and from the hippuric acid which is found in the urine of the herbivorae.
The earliest really successful, and still the most generally applied apparatus of this kind, is the Lunge-Rohrmann "plate columns" or "reaction towers" placed between the chambers, but though this and similar apparatus has proved to be very useful in the later stages of the process, it has not been found practicable to do away with the lead chambers entirely.
In 1906 Lunge (in a paper published with Bert) to some extent modified his views, by introducing an intermediate compound, sulphonitronic acid, SO 5 NH 2, which had been noticed by various chemists for some time through its property of imparting a deep blue colour to sulphuric acid.
The temperature of the condenser is so regulated as to bring about the condensation of the nitric acid only, which runs out at the bottom of the pipe, whilst any uncondensed steam, nitrogen peroxide and other impurities pass into a Lunge tower, where they meet a descending stream of water and are condensed, giving rise to an impure acid.
Lunge bei der Arachniden," Zeitsch.
GEORG LUNGE (1839-), German chemist, was born at Breslau on the 15th of September 1839.