1. Production of paper making and fiber pulp;
2. Production of soap, synthetic detergents and synthetic fatty acid as well as the refining of plant and animal oil;
3. As the desizing agent, scouring agent and mercerizing agent for cotton in textile and dyeing industries;
4. The production of borax, sodium cyanide, formic acid, oxalic acid, phenol and so on;
5. The refining of petroleum products and used in the drilling fluid of oil field in petroleum industry;
6. As the acid neutralizer, peeling agent, decolorant and deodorant for food products in food industry;
7. As alkaline desiccant.
