"Alum Refining By-product"
The husband has something to do with it. He was born in the industry of alum refining, and the name is Fluoride Aluminum By Product. It is also a material, produced at the end of alum refining, and has unique properties. It is a genus of alum and fluoride.
At the beginning, alum was put into the furnace, cooked over a hot fire, and all its properties fell apart. In its transformation, Fluoride Aluminum By Product gradually emerges. Or attached to the wall of the furnace, or sunk in the bottom of the kettle, the color may be dark or bright, depending on the process of refining.
Its use is also, although it is a by-product, it should not be underestimated. It can be applied to various industries, as materials and agents, each doing its best. In the metallurgical industry, it can be the work of flux to make the gold pure and good; in the chemical industry, it can be a catalytic agent to promote the speed of reaction.
And its system should follow the law. Observe the change of heat, observe the transformation of quality and state, and make sure to be fine. Otherwise, it will be useless because of poor quality.
Therefore, the people who refine alum should cherish it in FluorAluminum By Product, and make good use of it, so as to live up to the work of refining and increase the prosperity of various industries.