Chitin is widely used, for example: (1) chromatographic support (2) environmental protection: chitin and its derivatives against a variety of metals, especially some harmful metals that cause serious environmental pollution, such as mercury, cadmium, copper, nickel Chrome, etc. have good chelating ability, so they are promising in terms of water purification and sewage treatment. (3) Purification of radioactive contamination: Many radioactive contaminations are derivatives of radioactive transition elements that can be removed using chitin. (4) Comprehensive utilization of ore: It is an effective collector for zirconium, hafnium and yttrium. (5) Glass fiber finishing agent (6) Dye industry application: Chitin can be made into a high polymer type dye. (7) Additives for the paper industry (8) Finishing agents for other fabrics (9) Photographic industrial materials: At present, the internationally rapid development of liquid-free fixing and developing photography (Polaroid) is the use of wear-resistant and photosensitive chitin . (10) Medicines and Surgical Supplies: The hydrolysate of chitin, a glucosamine salt, is used to treat enteritis, colon ulcers and pneumonia. The use of D-glucosamine or N-acetylglucosamine as a chemotherapeutic agent for certain tumors works well. Chitin has a certain bactericidal effect. It can also be used as a blood anticoagulant, a wound healing agent, and the like. Surgical sutures, artificial skin and wound dressings, artificial blood and hemostatic sponges, contact lenses, and drug carriers are prepared by using chitin, and the use effect is good. Other uses include adhesives, fillers for cigarette paper, leather finishes, flocculants, and the like. In addition, it has attracted extensive attention for enzyme immobilization, seasoning and beverages, and daily chemical products.
