Industrial Crab Shell Chitosan Powder 80 Mesh for Wastewater Treatment with ≥85% Deacetylation Degree and 10-200 mpa·s Viscosity
Chitosan is a versatile biomaterial and organic polymer derived from crab shells, recognized for its non-toxicity, low allergenicity, biocompatibility, and biodegradability. Classified by the US FDA as "generally recognized as safe" (GRAS), this linear polysaccharide is composed of randomly distributed β-(1→4)-linked D-glucosamine and N-acetyl-D-glucosamine units.
Chemical Name: β-(1→4)-2-amino-2-deoxy-D-glucose
Glycan Formula: (C₆H₁₁NO₄)ₙ
Molecular Weight: Mixed molecular weight product (unit weight: 161.2)
CAS Code: 9012-76-4
| Specification | Standard |
|---|---|
| Deacetylation Degree | ≥75% | ≥85% | ≥90% |
| PH Value (1%, 25°C) | 7.0-8.5 | 7.0-8.0 | 7.0-8.5 |
| Moisture | ≤10.0% |
| Ash | ≤0.5% | ≤1.5% | ≤1.0% |
| Viscosity (1% AC, 1% Chitosan, 20°C) | ≥800 mpa·s | >30 mpa·s | 10-200 mpa·s |
| Heavy Metal | ≤10 ppm | ≤10 ppm | ≤0.001% |
| Arsenic | ≤0.5 ppm | ≤0.5 ppm | ≤1 ppm |
| Mesh Size | 80 mesh |
| Bulk Density | ≥0.3g/ml |
| Total Aerobic Microbial Count | ≤2000 cfu/g | ≤2000 cfu/g | ≤1000 cfu/g |
| E-Coli | Negative |
| Salmonella | Negative |
- Wastewater Treatment: Removes suspended substances, adsorbs heavy metal ions, reduces BOD and COD levels, and treats surface water
- Petroleum Auxiliary: Used in petroleum and shale gas exploitation due to macromolecule properties and amino positive charge
- Paper Making: Functions as sizing agent, reinforcing agent, and retention aid to increase paper strength and recover lost pulp
- Agriculture: Applied as seed soaking agent, coating agent, foliar spray fertilizer, bacteriostatic agent, soil conditioner, feed additive, and fruit/vegetable preservative
- Powder: 25kg/drum
- 1-5mm small pieces: 10kg/woven bag
Yixing Cleanwater Chemicals Co., Ltd. is located in Yixing, Jiangsu Province, China, with convenient transportation access to domestic and international markets. Our products feature strong decolorization capabilities and effective removal of COD/BOD for wastewater treatment in textile, printing, dyeing, paper-making, mining, ink, and related industries.
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