What is the proper way to dispose of Citranox?
By US federal standards, Citranox can be disposed of to drain as is. It is non-hazardous waste by federal RCRA standards. Local waste treatment standards could be more stringent and might require neutralization prior to discharge. The Citranox will have a pH of between 2.1 and 2.5 as is and it is possible this would be too acidic to discharge without neutralization according to local standards. A single gallon is unlikely to be that much of a concern, but if local standards are not known be extra cautious and neutralize the Citranox using any weak base such as baking soda (sodium bicarbonate) or washing soda (sodium carbonate). It takes 14 lbs. of baking soda or 2.3 lbs of washing soda to neutralize 1 gallon of Citranox to near pH 7.
To view a technical bulletin for Citranox, please read this PDF.