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Chitosan (MF: C₆H₁₁NO₄·2H₂O, MW: 161.16) is an industrial product appearing as a white or grayish-white, translucent, flake-like solid with a slight pearlescent sheen. Odorless, non-toxic, and readily biodegradable, it is one of the few naturally occurring cationic polyelectrolytes. Soluble in low-acidity aqueous solutions, it exhibits excellent biocompatibility, is non-antigenic, and insoluble in human body fluids. The molecular structure of chitosan contains active groups such as amino (-NH₂) and hydroxyl (-OH) groups, readily undergoing chemical reactions like acylation, etherification, cross-linking, and chelation. These reactions enable performance optimization through modification. Under acidic conditions, the amino group protonates (-NH₃⁺), imparting a positive charge to its aqueous solution and conferring ion exchange capacity.
| Item | Specification |
| Melting point | 102.5 °C |
| Boiling Point | N/A |
| Density | 1.75 g/cm³ |
| Bulk Density | 0.15–0.3 g/cm³ |
| Specific rotation | [α]D₁₁ –3° to +10° |
| Flash Point | N/A |
| Refractive index | 1.7 |
| Solubility | Insoluble in water, ethanol, diethyl ether, acetone, and other organic solvents; readily soluble in dilute hydrochloric acid, acetic acid, and other acidic solutions. |
Chitosan powder serves as a stabilizer, thickener, emulsifier, and clarifier in the food industry, and is used to prepare edible food films. It also functions as a dietary fiber component to promote intestinal motility.
Pharmaceutical Applications of Chitosan:
– Used in drug delivery systems to prepare microspheres, nanoparticles, hydrogels, and other carriers.
– Employed in absorbable sutures, wound dressings, and tissue engineering scaffolds.
– Utilized for medical antimicrobial coatings.
– Serves as a coagulant, heavy metal chelator, and functions as a moisturizer and antimicrobial agent in cosmetics.
Agricultural Applications of Chitosan:
– Serves as a plant growth regulator to enhance crop root development;
– Functions as a slow-release carrier for pesticides, improving utilization rates and reducing runoff while providing antimicrobial and insect repellent effects;
– Regulates soil pH, improves soil structure, and adsorbs heavy metal ions.
Industrial and Environmental Applications of Chitosan:
– Treating industrial wastewater (e.g., dyeing effluent, electroplating wastewater);
– Functioning as a fabric finishing agent to impart antibacterial, wrinkle-resistant, and antistatic properties;
– Serving as a paper strengthener and sizing agent to enhance paper strength and printability while reducing chemical additive usage;
– Used in producing biodegradable films, ion exchange resins, adsorbents, and similar materials.
Jinan Jinbang Chemical Co., Ltd., strategically located within the New Materials Industrial Park in Tianqiao District, Jinan City, Shandong Province, stands as a prominent chemical innovator since its establishment in 2015. Operating from a modern, expansive 37,500 m² manufacturing facility, we are dedicated to the research & development, production, and global distribution of high-performance chemical solutions.
We are always committed to delivering optimal chemical solutions for all application scenarios.
