The average particle size of Ammonium Metatungstate particles is not a fixed value, it is affected by many factors, including preparation method, process conditions, purity of raw materials and so on. Therefore, the average particle size of Ammonium Metatungstate particles may vary in different literatures and information.
Nanoscale particles
Nanoscale ammonium metatungstate particles can be prepared by certain specific preparation methods, such as the sol-gel method. The size of these particles is usually small, generally between 10 and 70 nanometers, and the exact value depends on the controlled conditions during the preparation process.
Micron-sized particles
In other preparation methods, such as spray drying, the particle size of ammonium metatungstate particles may reach the micrometer scale. For example, it has been shown that the average particle size of hollow ammonium metatungstate spheres prepared by spray drying method is 1.03 μm. In addition, the particle size of ammonium metatungstate particles prepared by other traditional methods such as precipitation or hydrothermal method may also be in the micrometer range but the exact value will vary depending on the process conditions.
Large particles
Under certain specific conditions or for specific applications, it may be necessary to prepare ammonium metatungstate particles with large particle sizes. The particle size of these particles may exceed the micron level, and the exact value needs to be determined according to the actual situation.
Influence of preparation method
Different preparation methods can lead to significant differences in the particle size distribution and average particle size of ammonium metatungstate particles. Therefore, when comparing the data in different literatures, the differences in preparation methods need to be noted.
Influence of process conditions
Even if the same preparation method is used, different process conditions (e.g., temperature, pressure, time, etc.) will have an effect on the particle size of the particles. Therefore, it is necessary to optimize the process conditions according to the needs of the specific application in order to obtain the desired particle size distribution.
Accuracy of the measurement method
The method of particle size measurement also affects the accuracy of the results. Therefore, when comparing data from different literature, it is important to be aware of the differences in measurement methods and their reliability.
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