The function and use of iron - free aluminum sulfate |
| Author： Date：2019/2/22 15:00:05 |
Iron free aluminum sulfate is used as precipitating agent of rosin gum and wax emulsion in papermaking industry, as flocculant in water treatment, as internal retention agent of foam extinguisher, as raw material of alum and aluminum white, as raw material of petroleum decoloration, deodorizer and some drugs, etc.Also can make artificial gem and high - grade ammonium alum.Products containing less than 5mg/kg arsenic can be used as flocculants in water treatment.
1. Used as paper sizing agent in papermaking industry to enhance water resistance and seepage resistance of paper; 2. After being dissolved in water, fine particles and natural colloidal particles in water can be condensed into large flocculent particles, which can be removed from water. Therefore, it is used as a coagulant for water supply and wastewater 3. Used as turbid water purification agent, but also used as precipitation agent, color fixing agent, filling agent, etc.Used as antiperspirant in cosmetics (astringent); 4. In the fire industry, it forms foam extinguishing agent with baking soda and foaming agent; 5. Analytical reagent, mordant, tanning agent, oil decolorizer, wood preservative; 6. Albumin pasteurizing stabilizers (including liquid or frozen whole eggs, whites or yolks); 7. Can be used as raw materials for the manufacture of artificial gems and high grade ammonium alum, other aluminates; 8. In the fuel industry, chrome yellow and lake dyes are used as precipitants, as well as as color fixing and filling agents. Non-ferrous aluminum sulfate can be used in the production of high grade paper, high grade fabric, food leavening agent, white rubber, white leather and so on. |
