Can calcium chloride desiccant be used for electronic products?

Why is calcium chloride desiccant less commonly used in electronic products?
In general circuit boards, there are usually metal components such as copper (Cu) and iron (Fe), and calcium chloride contains halogen ions (chloride ion C). The solution containing halide ions has strong conductivity and can promote oxygen corrosion of metal components. But this does not necessarily mean that using calcium chloride desiccant will cause corrosion of metal components in electronic products.
The necessary condition for calcium chloride desiccant to corrode metals is direct physical contact between calcium chloride and metal components. Although calcium chloride contains chloride ions, it is not volatile and cannot corrode nearby metal components through the air route. So only in two situations, calcium chloride and desiccants may corrode metal components in electronic products. One reason is that the surface of the desiccant is contaminated with calcium gasification dust, and the other reason is that the drying bag leaked due to compression during transportation. Both of these situations are closely related to the production environment and product quality of calcium chloride desiccant.
Under what circumstances can calcium chloride desiccant be used for electronic products?
There is physical isolation in product design, and calcium chloride and desiccants will not directly contact the metal components in the product, such as headphones. In addition to the physical isolation of the headphone shell, there is also a diaphragm inside, and the metal components are generally electroplated, which has corrosion resistance.
There is sufficient space in the packaging material of the product to place desiccants, and the desiccants will not come into direct contact with the product. Therefore, desiccants need to be placed in the outer packaging box of the product with sufficient space, and calcium chloride desiccants should be used in the container for overall moisture prevention.
In summary, calcium chloride desiccant is not completely unsuitable for electronic products, but when choosing calcium chloride desiccant products, it is important to consider the production environment (whether it is a clean workshop) and product quality (whether there is a risk of leakage from the packaging materials used)