Shares & Saves. Save. Xenon and halogen lights use a gas to help increase bulb effectiveness, but there are several key differences between them. Halogen lights are an older type of bulb that uses halogen gas primarily as a buffer and backup system, while xenon lights depend wholly on xenon gas to produce light.
Magnesium chloride is the name for the chemical compounds with the formulas MgCl 2 and its various hydrates MgCl 2 (H 2 O) x. These salts are typical ionic halides, being highly soluble in water. The hydrated magnesium chloride can be extracted from brine or sea water.
Usually, magnesium chloride hexahydrate is used for the reaction step. The concentration of the magnesium chloride hexahydrate in the reaction mixture is not limited to a special range. However, it is preferable that the concentration of magnesium chloride hexahydrate be in a range of from 2 to 20% by weight.owever, after the recovery of the precipitated magnesium chloride hexammoniate, the remaining aqueous solution containing unreacted magnesium chloride, ammonium salt and ammonia, and having a low temperature, is discharged from the reaction system without recovering it.