Although Sulfite is fairly effective, significantly with the usage of catalysts like cobalt salts, it does have constraints. It should not be used in boilers over 900 PSI, as sulfite can decompose into sulfur dioxide (SO2) and hydrogen sulfide (H2S) gases, both equally corrosive, which could then have off Together https://thebookmarkfree.com/story18559616/chemical-boiler-options