1. Currently, the materials commonly used for moisture-proof and dehumidifying agents are mainly composed of calcium chloride and silica gel as raw materials. Calcium chloride is a deliquescent white crystal with granular, blocky, or flaky structures; It has strong hygroscopicity and becomes liquid after absorbing moisture. This type of moisture absorbing box is covered with a thin film on the upper layer, a moisture absorbing agent in the middle layer, and a water storage layer on the bottom layer.
2. When the moisture absorbent absorbs moisture from the air in the cabinet, it will turn into a liquid and flow to the bottom layer. At the beginning, when the moisture absorbent is still at a high concentration, the moisture absorption rate is fast. Once the humidity in the space drops to a certain level, the moisture absorption rate will slow down. If the humidity in the environment does not increase, the lifespan of the moisture absorbent will be extended. The amount of water molecules per unit volume and the probability of motion collision, for example, if the moisture in a cabinet drops from 90% to 60%, the moisture absorbent may have been consumed by about half, but at this time, the water molecules in the air in the cabinet are also reduced by 30%, and the probability of water molecules flowing, colliding, and reacting with the moisture absorbent through the film decreases.
Calcium chloride is used for dehumidification principle: relying on the strong hygroscopicity of calcium chloride, it adsorbs water molecules in the air and reduces the humidity in the air.
Application: Calcium chloride has a wide range of uses. Industrial grade calcium chloride can be used for petroleum drilling, desiccants, snow melting agents, refrigerants, coagulants, etc. Food grade calcium chloride is mostly used as a food additive, which can have effects such as solidification, preservation, thickening, and nutrition.
Calcium chloride aqueous solution is an important refrigerant for freezers and ice making, which can accelerate the hardening of concrete and increase the cold resistance of building mortar. It is an excellent building antifreeze. Used as a defogging agent and road dust collector for ports, as well as a fabric fire retardant.
Calcium chloride is a porous solid particle. By adsorbing active static moisture and odor, it achieves the effects of removing moisture and odors. The adsorption process is a physical reaction. Utilize the physical properties of calcium chloride.
The main raw materials for calcium chloride desiccant are calcium carbonate and hydrochloric acid, which are refined through processes such as reaction synthesis, filtration, evaporation concentration, and drying.
White porous block, granular or honeycomb solid. Slightly bitter in taste, odorless. The aqueous solution is colorless. Mainly used as raw materials for the production of various calcium salts in inorganic chemical industry; Also used as a desiccant for gases, in the food industry as a calcium fortifier, hardener, chelating agent, desiccant, etc. Calcium chloride desiccant has the effects of adsorption activity, static dehumidification, and odor removal. Not only does it have fast adsorption speed, high adsorption capacity, odorless, non-contact corrosiveness, and no environmental pollution, but it is widely used in oil seals, optical medicine, and health food.
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