What is the dehumidification principle of calcium chloride?

Principle of calcium chloride dehumidification bag

1. At present, the materials of moisture-proof and dehumidifying agents are mainly made of calcium chloride and silica gel. Calcium chloride is a white crystal that will deliquescence, with granular, blocky or flake structures; It has strong hygroscopicity and is liquid after absorbing moisture. The upper layer of such hygroscopic boxes is covered with a film, the middle layer is a hygroscopic agent, and the bottom layer is a water storage layer.

2. When the hygroscopic agent absorbs the moisture in the air of the cabinet, it will turn into liquid and flow to the bottom. At the beginning, when the hygroscopic agent is still high in concentration, the hygroscopic rate will be fast. Once the space humidity drops to a certain extent, the hygroscopic rate will slow down. If the environmental humidity has not increased, the life of the hygroscopic agent will be prolonged. The amount of water molecular weight per unit volume and the probability of motion collision. For example, if the moisture in the cabinet decreases from 90% to 60%, the hygroscopic agent may have consumed about half. But at this time, the water molecules in the air in the cabinet are also 30% less, and the probability of water molecules flowing and colliding and reacting with the hygroscopic agent through the film is reduced.

Calcium chloride is used as the principle of dehumidification: depending on the strong hygroscopicity of calcium chloride, it can absorb water molecules in the air and reduce the humidity in the air.

Uses: Calcium chloride has a wide range of uses. Industrial grade calcium chloride can be used as oil drilling, drying agent, snow melting agent, refrigerant, coagulant, etc. Food grade calcium chloride is mostly used as food additive, which can play a role in solidification, preservation, thickening, nutrition and other effects.

Calcium chloride aqueous solution is an important refrigerant for refrigerator and ice making, which can accelerate the hardening of concrete and increase the cold resistance of building mortar. It is an excellent building antifreeze. It can be used as port fog suppressant, road dust collector and fabric fire retardant.

Calcium chloride is a solid particle of porous block. Through adsorption activity, static dehumidification and odor removal can be achieved. The adsorption process is a physical reaction. Utilize the physical properties of calcium chloride.

The main raw materials of calcium chloride desiccant are calcium carbonate and hydrochloric acid, which are refined through reaction synthesis, filtration, evaporation concentration, drying and other processes.

White porous massive, granular or honeycomb solid. It tastes slightly bitter and odorless. The aqueous solution is colorless. It is mainly used as raw material for inorganic chemical industry to produce other calcium salts; It is also used as a desiccant for gases, as a calcium strengthening agent, curing agent, chelating agent, desiccant, etc. in the food industry. Calcium chloride desiccant has adsorption activity, static dehumidification, odor removal and other effects. It not only has fast adsorption speed, high adsorption capacity, tasteless, non-contact corrosivity, and no environmental pollution, but also is widely used in oil seals, optical medicine, and health food.