PDF Publication Title:
Text from PDF Page: 083
OXIDATION AND SUBSTITUTION OF OKGANIC COMPOUNDS 71 l Bromoform is obtained in a similar manner if alkali bromide be employed in the presence of alcohol or acetone. Chloroform is produced by employing alkali chloride with 2 acetone. Schering's patent in this connection has been 3 worked through and confirmed by Teeple. Chloral is produced if alcohol is used in the presence of alkali 4 chloride. The production of AZO-DYES by electrolysing an anode liquor containing amine, nitrite, and phenol or naphthol 5 was worked out by Lob. The nitrous acid liberated at the anode reacts with the amine to form a diazonium compound, and this immediately condenses with the phenolic substance which is present to produce the azo-dye. Cooling is desirable though not so important as in the ordinary chemical method, since the diazonium compound couples with the phenol immediately it is formed; but a diaphragm must be used to separate anode from cathode. Orange II., Congo red, dianisidine blue, and many other colours have been formed in this way. Aromatic compounds in the presence of alkali halides or solutions of halogen acids are usually substituted when subjected to electrolysis. Phenols are readily substituted, and several antiseptics have been obtained in this manner. From thymol in alkali solution, and in the presence of 1 Amer.Cham. Jowrn., 1902,27,63; Trans,Amer.Etektrochem,, 1905, 8, 281. 2 3 4 6 D.R.P. 29771(1884). J. Amer.CJiem. Soc, 1904=,26,536. EUktroch&m. ZeitscK, 1894:,1,70. Zeitsch. Elektrochem., 1904,10,237.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 | RSS | AMP |