Chlorine dioxide is released from sodium chlorite by lowering the pH of the chlorite solution.
Hcl is used at 1:1 of the chlorite and 1.2%:1% of chlorite strength.
Example HcL is 32%. Hence the major supply of chlorite in the world is 25%.
1% chlorite-1.2% Hcl
5% chlorite-6% Hcl
12% '' -15% Hcl
25% chlorite -32% Hcl
This will release 100% 0f the available.
is added at 1:10 chlorite and releases 20% of the available ClO2 and has a chlorous acid residual.
To make it easier to mix the Industry standard is 50% liquid citric which is added at 1:5, if you had 10% citric it would be added at 1:1
If you go to the site below you can download a pH graph, addition rate table and ClO2 usage guide, they will help.