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HRK Supply Carboxymethyl Chitosan raw Materials powder
Product Overview:
Carboxymethyl chitosan is a water-soluble chitosan derivative and an amphoteric polyelectrolyte. It is formed by introducing a hydrophilic group -CH2COOH into the chitosan polymer chain. After carboxymethylation, chitosan has improved water solubility, especially in neutral and alkaline solutions. It has film-forming, thickening, moisturizing, chelating and other properties. Therefore, it is widely used in agriculture, medicine, health products, cosmetics, preservation, environmental protection and other aspects.
HRK Supply Carboxymethyl Chitosan raw Materials powder Attributes
CAS:83512-85-0
MF:C20H37N3O14
MW:543.51948
EINECS:695-802-6
Specification: 99% min Carboxymethyl Chitosan Powder
Sample:Carboxymethyl Chitosan Powder
Packaging:1kg/bag, 25kg/drum
Brand: raw Materials
Appearance:white
Storage: Cool Dry Place
Shelf Life: 2 Years
Test Method: HPLC
HRK Supply Carboxymethyl Chitosan raw Materials powder Details
Carboxymethyl Chitosan Powder Usage and Synthesis.
Carboxymethyl chitosan (CMC) is a carboxymethyl derivative of chitosan. It has strong polarity and is easily soluble in water. It has been widely used in the fields of pharmaceuticals and biomedical material development. Since the content of carboxymethyl chitosan in drugs directly affects their clinical antibacterial and anti-infection effects, it is particularly important to accurately quantify carboxymethyl chitosan.
Uses of Carboxymethyl Chitosan.
Used as high-grade cosmetic additives, heavy metal chelating agents, drug sustained-release agents, plant growth agents, etc.
Preparation of Carboxymethyl Chitosan.
Add sodium hydroxide in isopropanol solution to the reaction flask, the concentration of sodium hydroxide is 40%. Add chitosan with a deacetylation degree of 15% to 45% to the reaction flask, and the mass ratio of chitosan to sodium hydroxide is 1:4.8 after addition. Slowly add the pre-dissolved chloroacetic acid in isopropanone solution to the reaction flask under stirring, and continue stirring and reacting for 3 hours after addition.
The mass ratio of chitosan to chloroacetic acid is 5:1. After the reaction is completed, add concentrated hydrochloric acid to the reacted material, adjust the pH value of the material to 6-7, filter, wash the filter cake 3 times with anhydrous ethanol, and dry the washed filter cake below 50°C to obtain crude carboxymethyl chitosan.
Product method of Bulk Carboxymethyl Chitosan Powder.
