About Us

A conversation about trichloroisocyanuric acid (TCCA)

ning said: I think maybe mixing or grinding the stuff with a diluent like sand would help. Or, perhaps, dropping the sulfuric acid through a tube to the bottom of the vessel.
Also, I would much prefer to use solid chlorinating agents. However, it appears oxalyl chloride will react with amides/imidines(?). But is this only in basic conditions, or would it happen in acid conditions as well? That is the question. Just adding a little dry HCl or H2SO4 to ethylene glycol and carefully adding trichloroisocyanuric acid (TCCA) or that funny dichlorodimethylhydantoin might work, if oxalyl chloride only attacks in basic conditions. It would also be much, much more economical with chlorinating agent than the production of chlorine. 
Well, chem experts? Does an acyl halide react with an amide or imidine in acidic conditions, or must it be deprotonated? 
Organikum said: Good news! I found a procedure describing the production of chlorine by using NaCl/H2SO4 onto MnO2 instead of the ususal HCl onto MnO2. It is told this being advantageous for more chlorine being produced and for the H2SO4 scavenging H2O from the reaction.
So there is little doubt that this will work just fine with trichloroisocyanuric acid (TCCA). The only question left is if not TCCA is a too expensive material for this task - MnO2 maybe not everywhere available with ease but if MnO2 isnt, FeO2 is (for coloring cement) and I believe this will work as substitute for MnO2. 
History development:
The major foreign consumption and production of trichloroisocyanuric acid (TCCA) is in the United States, Japan, Western Europe, domestic demand is currently about 6kt, along with expanding the scope of application of the product, demand is rising. China began research in the 1960s, '70s with pilot and small batch production, more than 80 years, more than 20 trial or trial production of such products, there are currently 30 production plants.