Specification:ItemCrystal Ball Weather Forecast Storm BottleMaterialHigh-stretch silica glass, liquid, wooden baseColorAs the pictureSize10*9cmWeight100gDescription:Weather Forecast bottle is also named storm bottle. It is a beautiful and natural exquisite glass crafts, look at it in the light, this charming shape of the sealed glass tube, such as snow, such as snow feathers like a piece of crystal bloom, when subjected to atmospheric pressure and ambient temperature, the bottle Crystal will changeLiquid composition: distilled water, alcohol, potassium nitrate, ammonium chloride and camphor mixtureFunction;Forecast the weather, home decorationPrinciple:Crystallization of the bottle changes, mainly due to the solution of camphor in ethanol solubility will change with temperature. Potassium nitrate, ammonium chloride and water are used to control the continuous nucleation during high-speed crystal growth. When the temperature changes, the crystallization of camphor, the temperature change rate, it will affect the crystal growth size and structure. These factors add up, resulting in a beautiful bottle of crystal varietyPackage included:1 XCrystal Ball Weather Forecast Storm Bottle