How to identify the quality of magnesium chloride?

Quality is a very important aspect when we buy products. For anhydrous magnesium chloride, anhydrous magnesium chloride with good quality can be used in more places. Imagine adding poor quality anhydrous magnesium chloride, in which impurities may have other chemical reactions with other substances, and then cause various problems. For example, if edible magnesium chloride products cannot ensure the quality of products, how can customers eat them at ease.

Although potassium chloride, sodium chloride and magnesium sulfate are simply soluble in water, the solubility of these salts in high concentration magnesium chloride solution is very small due to the same ion effect of magnesium chloride. When the concentration of magnesium chloride is very high, these salts are almost insoluble. So the ratio of 1:1 water dissolved to investigate the amount of white salt deposition can be known. The more insoluble white matter, the lower the purity. Magnesium chloride with high purity has less white insoluble matter. At the same time, check the halogen (specific gravity) of the brine. Those with high halogen have high magnesium content. On the contrary, magnesium chloride with more impurities has low halogen.