Crystals appear in the water collected by the clothes dehumidifier bag. What is this?
The crystallization in the dehumidification bag is due to the formation of calcium dichloride crystals during the reaction.Water is the deliquescence of calcium chloride in the process, will release a lot of heat, belongs to the physical reaction.Anhydrous calcium chloride absorbs water from the air and dissolves in it to form a saturated solution.However, if the ambient temperature drops under certain conditions, for example, it will lead to the formation of a supersaturated solution, in which calcium dichloride crystals will be precipitated out, which is the source of crystallization.