What exactly is the color of white corundum changed

Many people mention the name, think that white corundum must be white, but in fact, it is not the case, to the same jade, different ingredients make the color of the product is not the same. Experts say that the color of white corundum will also change, and there are certain rules to follow, if you do not believe it, follow a small series to see.
The study found that the color of white corundum will appear red, red yellow, gray and other colors, and there are many reasons that will affect the product. However, there is only one point that the color change of white corundum is mainly caused by the content of impurities in the binder and the firing atmosphere.
If the content of impurities in the binder is less than the specified range, it is normal white, but with the increase of the content, the phenomenon of red and red-yellow color of white corundum will gradually increase, in this state, it is still more appropriate to use neutral atmosphere or weak oxidizing atmosphere.
It can be seen that the content of various components in white corundum is very important, which is related to the color of white corundum, so it must be strictly controlled to avoid affecting the use of the entire product.