You are right, I completely overlooked that there are other compounds in the Miracle-Mineral-Supplement , which may also react with the citric acid ! Then one would indeed need a little more citric acid .
Come to mind, if one of the byproducts of the sodium chlorite production is sodium chlorate, then one should not ingest un-activated Miracle-Mineral-Supplement - but I don't know what the remaining few percentages repesent that are in Miracle-Mineral-Supplement . Or is it just table salt ?