Agari
Banned
Posts: 160
Registered: 8-10-2015
Location: The Amine Group
Member Is Offline
Mood: Lowest Oxidation State
|
|
TCCA Synthesis?
I know that the synthesis of trichloroisocyanuric acid is a rarity here because TCCA is one of the most over-the-counter things that could be
obtained. I am hoping to synthesize some TCCA,not for use as a chlorine generator,but as a proof-of concept type of procedure. My question here is
(Hopefully) simple: How would one go about synthesizing TCCA? I can't find much information on synthesis besides patent 5039800,and that involves
using cyanuric acid itself.
Pic related,structure of TCCA.
[Edited on 9-1-2016 by Agari]
Element Collection Status:
Elements Acquired: 21/91
Latest: Lead (Pb)
Quantity: 12g
-----------------------------------------------------
|
|
Ozone
International Hazard
Posts: 1269
Registered: 28-7-2005
Location: Good Olde USA
Member Is Offline
Mood: Integrated
|
|
See example 1: http://www.google.com/patents/US3898222
-Anyone who never made a mistake never tried anything new.
--Albert Einstein
|
|
Agari
Banned
Posts: 160
Registered: 8-10-2015
Location: The Amine Group
Member Is Offline
Mood: Lowest Oxidation State
|
|
Thanks for the find. I see only one problem: The TCCA is prepared using one of it's salts(difficult to purchase). Is there any way to prepare TCCA
"from scratch"? If not,I'll have to abandon this and instead go for the Cyanuric acid-->TCCA route.
[Edited on 9-1-2016 by Agari]
Element Collection Status:
Elements Acquired: 21/91
Latest: Lead (Pb)
Quantity: 12g
-----------------------------------------------------
|
|
UC235
National Hazard
Posts: 565
Registered: 28-12-2014
Member Is Offline
Mood: No Mood
|
|
You can just buy cyanuric acid from a pool store. It may not be much cheaper than just buying the TCCA though. It tends to be residue from making TCCA
so it is partially chlorinated. Boiling it with HCl outdoors and recrystallizing from (large volumes of) hot water gives a clean product
Treat with 3eq of NaOH and chlorinate the chilled solution. The product separates as a solid. The process should also work with bromine.
|
|
Mesa
Hazard to Others
Posts: 264
Registered: 2-7-2013
Member Is Offline
Mood: No Mood
|
|
Without read relevent literature/publicly available info, the most obvious route I'd assume to be some sort of polymerization(via halogenation? Or
otherwise halogenated in a second step) to make isocyanuric acid.
[Edited on 9-1-2016 by Mesa]
|
|
Ozone
International Hazard
Posts: 1269
Registered: 28-7-2005
Location: Good Olde USA
Member Is Offline
Mood: Integrated
|
|
The way I see it, the sodium salt is made in-situ with NaOH, and DCM isn't that hard to come by.
Alternatively, TCCA is available as a swimming pool treatment chemical, e.g. http://ikingnod.com/trichloroisocyanuric-acid-tcca/
O3
-Anyone who never made a mistake never tried anything new.
--Albert Einstein
|
|