Hydrogen Sulfide Scavenger-15 is a 60% active triazine hydrogen sulfide scavenger that is effective in removing hydrogen sulfide (H2S). The process of removing H2S, by either iron sponge H2S scrubbers (forming iron sulfide) or chemical scavengers, is known as gas sweetening. Hydrogen sulfide scavengers are appropriate for use at the low H2S concentrations where conventional chemical absorption and physical solvents are not always economical.