Chitosan Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 9012-76-4 |
| Product name | Chitosan |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradePharmaceutical GradeIndustrial GradeSpecialty GradeFood GradeCosmetic Grade |
| Packaging | 25KG/bag500KG/bag1000KG/bag |
| Sample | Test Samples Available (Click to Request Samples) |
| COA | View COA |
| Price | Get Quote |
| Supply Type | Bulk / Contract manufacturing / OEM |
| Shipping | FCL / LCL available |
| Payment Terms | Support FOB \ CIF \ EXW quotations, and accept Letter of Credit (L/C). |
| Manufacturer | Greenrock Chemical(China Factory) |
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Documents We Provide for Chitosan
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Chitosan Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Chitosan
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Wound dressings, hemostatic materials | Film formation, crosslinking, freeze-drying |
| Pharmaceuticals | Controlled-release drug carriers | Microsphere/nanoparticle preparation, encapsulation |
| Food Industry | Food preservatives | Coating, spray drying |
| Food Industry | Functional food additives | Dissolution and blending, spray granulation |
| Water Treatment | Heavy metal ion adsorbents | Adsorption, flocculation and sedimentation |
| Water Treatment | Organic pollutant removal | Modification and grafting, filtration adsorption |
| Agriculture | Seed coating agents and plant disease resistance inducers | Encapsulation, spray drying |
| Textile Printing & Dyeing | Antimicrobial finishing agents | Immersion, coating and curing |
| Cosmetics | Moisturizers and film-forming agents | Dissolution and emulsification, formulation into emulsions |
| Biomaterials | Tissue engineering scaffolds | 3D printing, freeze-drying to generate porous structures |
Manufacturing Quality Control of Chitosan
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Degree of Deacetylation | FTIR Spectroscopy | Quantifies ratio of deacetylated to acetylated glucosamine units via characteristic amide I and OH band absorbance ratios. |
| Viscosity (Intrinsic Viscosity) | Capillary Viscometry | Measures flow time of dilute chitosan solution in capillary tube to calculate intrinsic viscosity using Huggins or Kraemer equations. |
| Moisture Content | Karl Fischer Titration | Determines water content by coulometric or volumetric titration with iodine generated electrochemically in pyridine-methanol medium. |
| Ash Content | Gravimetric Analysis (Weight Loss on Ignition) | Measures inorganic residue after high-temperature combustion at 550-600 C and subsequent weighing. |
| pH (1% Aqueous Solution) | Potentiometric pH Measurement | Determines hydrogen ion activity using calibrated glass electrode in standardized chitosan solution. |
| Heavy Metals (Pb, Cd, As, Hg) | ICP-MS | Quantifies trace metal concentrations by atomization, ionization in plasma, and mass-selective detection. |
| Residual Proteins | Lowry Assay | Measures protein contamination via biuret reaction followed by Folin-Ciocalteu colorimetric detection at 750 nm. |
| Residual Solvents (Acetic Acid) | Gas Chromatography (GC-FID) | Separates and quantifies volatile acetic acid using capillary column and flame ionization detection. |
| Particle Size Distribution | Laser Diffraction | Determines size distribution by analyzing angular variation in laser light scattering from suspended particles. |
| Microbial Contamination (Total Aerobic Count) | Plate Count Agar (PCA) Method | Quantifies viable aerobic microorganisms by colony formation on nutrient agar after incubation at 30-35 C for 48-72 h. |
| Sulfated Ash | Gravimetric Analysis | Measures sulfate-resistant inorganic residue after ignition with sulfuric acid pretreatment. |
| Assay (Chitosan Content) | Acid-Base Titration | Determines primary amine content by back-titration of excess standardized HCl with NaOH using methyl orange indicator. |
Technical Specifications of Chitosan
| Test Item | Specification |
|---|---|
| Appearance | Faint beige to beige powder |
| Purity | >=98.0% (by NMR, degree of deacetylation) |
| Water Content (KF) | <=0.5% |
| Residue on Ignition | <=1.0% |
| Heavy Metals | <=20 ppm (as Pb) |
| Solubility | Freely soluble in 1% aqueous acetic acid; practically insoluble in water, ethanol, and acetone |
| Viscosity (1% w/v in 1% acetic acid) | <100 mPa·s at 25°C |
| Optical Rotation | +45° to +65° (c=1 in 1% acetic acid) |
Specifications vary by industry. Reach out to our technical experts for a COA tailored specifically to your application. Email:selse@GRchemical.com
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Download COA of Chitosan
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
Packaging of Chitosan
Industrial Chitosan Procurement FAQ
1. How do you ensure product quality consistency?
We rely on a mature China-based manufacturing system and implement strict batch control and quality inspection for every shipment. Our production process complies with ISO 9001 standards, and a COA is provided for each batch to ensure consistent and reliable quality.
2. Do you offer competitive pricing for bulk orders?
Yes, as a China-based manufacturer and bulk supplier, we provide tiered pricing based on order volume. We support FOB and CIF quotations, as well as L/C payment terms for large transactions to meet international trade requirements.
3. Can you support large-volume or long-term supply?
We have stable production capacity and a well-established supply chain, enabling continuous bulk supply. We support ton-level and container-level orders, as well as long-term cooperation projects.
4. What is your typical lead time?
For in-stock products, shipment can be arranged within 1–3 days. For bulk packaging or customized orders, lead time depends on the specific quantity and production schedule.
5. What documents do you provide?
We can provide complete documentation upon request, including COA, SDS, TDS, and other compliance certificates, meeting industrial procurement and export requirements.
6. Can you customize product specifications or packaging?
Yes, we support customization of parameters such as purity, impurities, residual solvents, and heavy metals. We also offer various bulk packaging options, including 25kg bags, drums, and IBC tanks, suitable for industrial applications and transportation.
7. What shipping options do you support?
We support both FCL (Full Container Load) and LCL (Less than Container Load) shipments, and can flexibly arrange logistics solutions based on order size to meet bulk chemical export needs.
8. Do you provide technical or application support?
Yes, we provide basic application guidance and technical support based on industry experience to help customers optimize product usage.
9. How do you handle compliance and export regulations?
We are familiar with international trade and export regulations, ensuring all products comply with relevant requirements. We also provide complete documentation to support smooth customs clearance and global delivery.
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