What Else Is In Limewater Besides Calcium And Hydroxide?
Mg++ and Sr++ As discussed above, solid lime can contain considerable material in addition to calcium and hydroxide. In particular, most grades allow a significant amount of magnesium and alkali salts (which include sodium, potassium, and lithium). Of these, many aquarists would be most concerned with magnesium. In order to better assess how much strontium and magnesium would be delivered by the use of lime, I determined how much calcium, magnesium, and strontium were present in the solid quicklime that I use. Details of the testing method were presented in a previous article. The results are shown in Table 5.