Cesium doped tungsten oxide may be applied for preparing near infrared shielding material, i.e. heat insulating material. Among them, the raw material Cs doped tungsten oxide powder is also generally called cesium tungstate or cesium tungsten bronze, which can reduce a large amount of infrared rays passing through the glass. According to experts, the heat insulation effect of Cs doped tungsten oxide powder is the best. While cesium tungstate is a non-integer metered valence state, the molecular formula cannot be accurately represented.

Cesium doped tungsten oxide may be applied for producing infrared thermal insulation nano material, such as, nano transparent thermal insulation coating, nano transparent thermal insulation film, nano transparent thermal insulation dispersion, and the like.

Cesium doped tungsten oxide is a dark blue powder that may be used to prepare infrared ultraviolet shielding material. With the application of this new type of nano heat insulation material, the preparation of nano particle size Cs doped tungsten oxide powder is more important. For example, the cost, reaction cycle and many other problems should be considered. In this regard, experts have proposed a preparation method of Cs doped tungsten oxide powder, which has certain cost advantage with a short reaction cycle.

Cesium doped tungsten oxide may be applied for preparing transparent thermal insulation material. And the preparation of Cs doped tungsten oxide nano powder is becoming more and more important as its application in the field of heat insulation expands. In this regard, the experts proposed a preparation method of nano grain size Cs doped tungsten oxide, which saves raw materials with a short reaction period. More important, such preparation method can solve the deficiencies in the prior art.