Habit: fibrous, deliquescent, massive, granular
Color: colorless or white.
Luster: vitreous, greasy.
Diaphaneity: translucent to transparent.
Streak: white.
Occurrence: marine evaporites.
Dehydratation occurs at 120°C. Soluble in water.
Magnesium chloride is used to make metal magnesium, disinfectant, fire extinguishing agent, frozen brine, ceramics, and used to fill fabrics, paper, etc.; curing agent; nutrition enhancer; taste agent (with magnesium sulfate, table salt, calcium hydrogen phosphate, calcium sulfate, etc. (Combined use); Japanese rice wine and other auxiliary agents; water removing agent (used in fish cake, dosage 0.05% to 0.1%); tissue improver (combined with polyphosphates, used as an elasticity enhancer for surimi products). Due to the strong bitterness, the commonly used amount is less than 0.1%.