Magnesium chloride is typically divided into anhydrous magnesium chloride and hexahydrate magnesium chloride. The molecular formula for anhydrous magnesium chloride, which does not contain结晶水(crystalline water), is MgCl2; whereas hexahydrate magnesium chloride contains six结晶水 molecules, with its molecular formula being MgCl2·6H2O.

Magnesium chloride anhydrous is often referred to as brine powder in industrial applications, while magnesium chloride hexahydrate is commonly called brine sheet, brine granules, brine blocks, and so on. Regardless of whether it's magnesium chloride anhydrous or magnesium chloride hexahydrate, they share a common characteristic: they are hygroscopic. Therefore, when storing them, we should ensure they are kept in a dry and cool place.

Magnesium chloride hexahydrate shape: Flakes

Formula: MgCl2·6H2O

Molecular Weight: 203.30

Properties: White or grayish sheets, easily soluble in water, tends to become damp in humid air, and decomposes magnesium oxide at high temperatures.

Specs:

Parameter Name Chemical Composition Impurity Content (%)

SO4-2, K+Na, CaCl2, Alkali Metal Chlorides (CI-%)

MgCl2 ≥ 46% MgCl2.6H2O ≥ 97% 1.0 1.5 0.4 ≤0.9 White Magnesium Chloride

MgCl2 ≥ 44%  MgCl2·6H2O ≥ 95%  2.8  1.5  ≤0.9  Standard Magnesium Chloride

Content: (Magnesium 46%)

pH Value: (20% dissolved) 6-8