Blue silica gel is divided into blue gel indicator, color-changing silica gel and blue gel. The appearance is blue or light blue glassy particles. According to the shape of the particles, it can be divided into spherical and massive. It has the effect of silica gel adsorption and moisture prevention. With the increase of moisture absorption, its color changes from blue to purple, and finally to light red, which not only indicates the humidity of the environment, but also visually shows whether there is still moisture-proof effect.
Application:
1. Mainly used for moisture absorption and rust prevention of instruments, meters, equipment, etc. under airtight conditions.
2. Used in conjunction with ordinary silica gel desiccant to indicate the degree of moisture absorption of the desiccant and determine the relative humidity of the environment. As a silica gel desiccant for packaging, it is widely used in precision instruments, leather, clothing, food, medicine, and household appliances, etc.