Regarding the properties of iron free aluminum sulfate

It is not common to see chemicals such as iron free aluminum sulfate in daily life, so it is appropriate not to be familiar with them. But if the manufacturer or other personnel need to use such products, they must have a clear understanding of their properties.
1. Firstly, it is important to understand that the appearance of iron free aluminum sulfate is free of white, glossy crystals, particles or powders, and has a sweet taste.
2. Stable performance in the air will result in partial loss of crystalline water at 86.5 ℃ and complete loss of crystalline water at 250 ℃.
3. When heated, it expands violently and becomes a sponge like substance. If burned to red heat, the products are sulfur trioxide and aluminum oxide.
4. When the relative humidity is about 25% lower, it is prone to weathering and is easily soluble in water, resulting in an acidic solution.
5. Iron free aluminum sulfate is often used as a flocculant for purifying drinking water and sewage treatment equipment, and can also be used in the papermaking industry.