【Summary】：

Reagents for the determination of calcium and magnesium ions in aqueous solution

【Usage method】：

In the cup containing 50ml water, add this reagent trace, about 0.05~0.1 grams. The reagent and mixed with water, the measured color is more opaque, the calcium ion and magnesium ions more or less;; clear the water without calcium ion and magnesium ions.

【Application】：

Industrial water, civil drinking water, drinking fountains, water purifiers, mineral water and so on.