The air conditioning fan needs an ice box in the water tank to cool down. What liquid is in the ice box? Is it water?

This is ice crystal. Here is a copy for your reference!

Ice crystals (ice storage, ice boxes, ice bricks and ice cubes) are used in refrigerators, air conditioning fans, fish hooks and medical refrigeration. They are frozen and frozen in the refrigerator to store cold energy. After the refrigerator is powered off for 24 hours, the temperature in the refrigerator can be kept below 10 degrees (which can save energy and energy). The shell of the product is made of high-strength low-temperature resistant material, and the inside is filled with cold storage liquid (white viscous liquid) (freezing point-12℃, that is, it freezes at-12℃, and the freezing point is lower than the freezing point of water, so the stored cold capacity and the released cold capacity during dissolution are far greater than that of water, which directly plays the role of enhancing cooling and refrigeration, and has the characteristics of sufficient cold storage, rapid cooling and slow cooling release. ), sealed with rubber stopper and aluminum cover, non-leakage, non-toxic, in line with health standards, large refrigeration capacity, widely used in refrigeration and cold preservation of various refrigerators, freezers, fish boxes and medicines; Now it is widely used in air-conditioning fans to enhance cooling and refrigeration (ice crystals are frozen in the refrigerator for 5 to 6 hours, then put into the air-conditioning fan water tank for cooling, recycled and never fail). Components are refrigerants: (hereinafter, refrigerants and refrigerants are collectively referred to as refrigerants) working fluids used to transfer heat energy and produce freezing effect in refrigeration and air conditioning systems. According to the working mode, refrigerant can be divided into primary refrigerant and secondary refrigerant. According to the material properties, it can be divided into natural refrigerants and synthetic refrigerants. Ideal refrigerant: non-toxic, non-explosive, non-corrosive to metals and nonmetals, non-flammable, easy to detect when leaking, stable in chemical properties, non-destructive to lubricating oil, relatively large in latent heat of evaporation, and harmless to the environment.