A common designation for alkaline materials such as calcite (calcium carbonate) or magnesia (magnesium oxide) used in the neutralization of acid waters
A chemical used to make chlorine or bromine harmless Used in test kits to counteract the bleaching effect of the chlorine or bromine in order to increase the accuracy of pool water tests Sold as chlorine and bromine neutralizer, it is used to destroy excessive amounts of chlorine or bromine, so the high levels will not affect swimmers