****!!!!**** {Instructions for preparing solutions} "Method I produces a material equivalent to that produced by most commercial chlorine dioxide generators. Method II produces a reagent grade, chlorine dioxide solution with no free chlorine and is used for instrument standards and for studies where free chlorine would interfere." "to prepare low concentration (1000 ppm), chemically pure, chlorine dioxide solutions... Chlorine dioxide (ClO2) is produced by the acidification of sodium chlorite (NaClO2) solution with sulfuric acid (H2SO4): 4NaClO2 + 2H2SO4 ---- 2ClO2 + HCl + HClO3 + 2Na2SO4 + H2O Chlorine dioxide is removed from the reaction flask solution as gas by air stripping, purified by scrubbing with sodium chlorite solution and recovered by absorbing in chilled deionized (DI) water."

2003. Appendix B: "CT VALUES* FOR 4-LOG INACTIVATION OF VIRUSES BY CHLORINE DIOXIDE pH 6-9" "CT VALUES* FOR 3-LOG INACTIVATION OF GIARDIA CYSTS BY CHLORINE DIOXIDE"

{ists references to all Gov regulatory info sources re. SC and CD}{includes % & ingredients of tech-grade and various other SC products} "Sodium chlorite is available in both dry and liquid forms. The dry forms contain approximately 80% Sodium chlorite and the solutions range from 7.5% to 40% sodium chlorite."