Here's another crackpot idea for the hive to sting. Thinking about the OTC oxalyl chloride idea, and requiring a source of chlorine gas other than Ca(OCl)2, which seems to be impossible to find here, ning was hit by the following idea, regarding the generation of chlorine from TCCA (trichloroisocyanuric acid, trichlorotriazinetrione), which is readily available to ning. Upon further consideration, ning realized that not only would the idea probably work, but it involved NO water production.
Compare:
Ca(OCl)2 + H2SO4 --> CaSO4 + Cl2 + 2 H2O
TCCA + 3 H2SO4 + 3 NaCl --> CA + 3 NaHSO4 + 3 Cl2
As far as ning knows, TCCA reacts with HCl to produce Cl2. TCCA is stable in sulfuric acid (that's how it's purified), and sulfuric acid + salt is the standard HCl generator method. Combine them, and you have a Cl2 generator.
Probably some HCl will come over too. That's no problem for ning, because the chlorination also generates HCl. Not needing a wash bottle is well worth it.
Reaction stoichiometry:
78 g TCCA
60 g NaCl
100 g H2SO4
This would bee enough to chlorinate 15 g ethylene glycol, producing, ideally, 31 g oxalyl chloride.
to produce the same chlorine via the Ca(OCl) method would need:
143 g Ca(OCl)2
100 g H2SO4
ning imagines more sulfuric acid would bee needed to absorb the formed water.
Turns out the mass required is the same, and if it turns out that NaHSO4 can react with NaCl to produce HCl as well, the acid amount could bee reduced.
Thoughts? Is ning barking up the wrong tree here?