PDF Publication Title:
Text from PDF Page: 048
36 THE MANtTFACTUBE OF CHEMICALS BY ELBOTEOLYSIS to the trichloride (Ti018), which was employed to reduce a fresh quantity of sulphite. 1 Subsequent investigation by Elbs and his co-workers showed that it is possible to prepare hydrosulphite by the direct electrolytic reduction of sulphite, but it was not until Jellinek, in 1910, had demonstrated the importance 2 of current concentration, Jellinek showed that the decomposition of hydrosulphite is not due to cathodic reduction but to spontaneous decom- position, which takes place according to the following equation: 2Na3S2O4 + H2O « Na2S2O3 + 2NaHSO8, and results in the formation of sodium thiosulphate and bisulphite. He succeeded in retarding this decomposition by increasing the current concentration; that is, the ratio of current employed to volume of electrolyte. Jellinek also devised methods for purifying the salt and 3 that good yields were obtained. preparing it in a stable anhydrous condition. ing the solution with common salt, hydrated hydrosulphite having the composition Na2S2O4, 2H2O is salted out, and can be dehydrated by heating to 60° C. under reduced pressure. With a 5N solution of sodium bisulphite, Jellinek obtained a 10 per cent, solution of hydrosulphite, with a current efficiency of 80 per cent. The current concentra- tion he employed was 5 amps, per 100 c.c. of cathode *Elbs and Becker, Zeitsch. EUkbrochem., 1904, 10, 361; A. E. Frank, Zeitsch. EleJctrochem., 1904,10,450. aIbid., 1911,17,157,245. »Zeitsch,anorg.Chem.t 1911,70,93;71,96. By saturat-PDF Image | MANUFACTURE OF CHEMICALS BY ELECTROLYSIS
PDF Search Title:
MANUFACTURE OF CHEMICALS BY ELECTROLYSISOriginal File Name Searched:
the_manufacture_of_chemicals_by_electrolysis.pdfDIY PDF Search: Google It | Yahoo | Bing
Salgenx Redox Flow Battery Technology: Power up your energy storage game with Salgenx Salt Water Battery. With its advanced technology, the flow battery provides reliable, scalable, and sustainable energy storage for utility-scale projects. Upgrade to a Salgenx flow battery today and take control of your energy future.
CONTACT TEL: 608-238-6001 Email: greg@salgenx.com (Standard Web Page)