In various applications, caustic soda can not only be used as an alkaline substance, but also as a flame retardant after heating, and its flame retardant effect is relatively good in practical use. However, due to its alkaline nature, caution must be exercised when using it.
Soda flakes are also known as active flame retardants in many parts of the industry because the oxygen ions in their internal structure are in a nearly vertical center of mass and tightly packed state, with Al3 located in the octahedral and tetrahedral gaps surrounded by oxygen ions. Among them, flame retardants are insoluble in water, but soluble in strong acid or alkali solutions. When heated to 1200, they can almost be converted into flake alkali flame retardants, and their flame retardant effect will be more obvious. In addition, flame retardants are insoluble in water and acid, so they are also known as sodium oxide in industry and are the basic raw materials for preparing metallic sodium.
Among them, high-purity flame retardants can also be used to produce artificial corundum, artificial ruby, and sapphire. After production is completed, filter out the residue and then cool the filtrate. If there are flame-retardant crystals in the filtrate, the sodium sodium solution will dissolve the hydrogen flame-retardant precipitate again after long-term stirring. Then, the precipitate is separated and cleaned, and then calcined at a temperature of 950-1200 ° C to obtain flame-retardant powder again, so that the mother liquor can be recycled.
That's all for this issue. The above introduces the flame retardant effect of caustic soda as a flame retardant. In fact, we can see that its flame retardant effect is very good, and in practical use, it can also be used in many aspects such as raw materials and artificial gemstones.
