Chitosan
Synonyms
Chitin, deacylated;
Poliglusam;
Category
Polymer Surfactant
> Polysaccharide and its Derivatives
>> Cationic-type
>>> Cationic Polysaccharide and its Derivatives
Chemical Numbering System
CAS: 9012-76-4
EINECS: N/A
Molecular Formula & Molecular Weight
Molecular Formula: N/A
Molecular Weight: N/A
Structure
Schematic formula:
Properties
Appearance (1), white to pale yellow powder.
Solubility slightly soluble in water. Soluble in hydrochloric acid, acetic acid.
Stability stable.
Risk Solid form: flammable material; irritation, irritation to skin, eye, respiratory system. Harmful products of combustion are CO, CO2 and so on. Contact with strong oxidants, can cause to burn.
GHS label: 
Ecology may be hazardous to environment. Water body should be given special attention.
Biodegradability biodegradable.
Characteristics excellent film-forming, emulsifying, dispersing, lubricating, antistatic, antibacterial, bacteriostatic, preservative abilities. Biocompatible material.
Synthesis
Quality Standards & Test Methods
1, Physical and chemical indexes
|
Item |
Physical and chemical indexes |
|
Solid |
|
|
Actives, %, ≥ |
80.0 |
Test Methods
(1), Actives
2, Hazardous substances indexes
|
Item |
Hazardous substances indexes |
|
Solid |
|
|
Heavy metals (as Pb), mg/kg, ≤ |
20 |
|
As, mg/kg, ≤ |
3 |
Test Methods
(1), Heavy metals (as Pb)
Safety and Technical Standards for Cosmetics (2015 Edition)
GB/T 30799 The test method of food detergents -- Determination of heavy metals
(2), As
Safety and Technical Standards for Cosmetics (2015 Edition)
GB/T 30797 The test method of food detergents -- Determination of total arsenic
3, Product standards
(1), Chinese standards
(1a), GB 29941 Food safety national standard -- Food additive -- Deacetylated chitin (Chitosan)
(1b), SC/T 3403 Chitin and chitosan
(1c), YY/T 1699 Tissue engineered medical products -- Chitosan
(1d), Chinese Pharmacopoeia (2015 Edition) Chitosan
4, Further explanation
(a), On physical and chemical indexes: firstly, shall be indicated carbon atom distribution; secondly, shall be indicated average molecular weight.
(b), Used in cosmetics, should be test for harmful substances or furtherly test for microorganisms, according to local regulations and standards.
Major Uses
1, Typical applications
Use as dispersing agent, emulsifying agent.
Use as thickening agent.
Use as film-forming agent.
Use as sustained-release agent.
Use as suspending agent.
Use as antistatic agent.
Use as flocculant.
Use as adhesive.
Use as antibacterial agent.
2, Personal care products
Film-forming agent, hair fixing agent in personal care products.
3, Food
Use as food additive (thickening agent, film-coating agent, clarificant).
4, Medicine
Pharmaceutical excipient, use as disintegrant, thickening agent. (This section is for reference only, should be implemented according to local Pharmacopoeia.)
5, Agriculture
Use as plant growth regulator.
Manufacturers
Update: 20140911(1); 20200503(2);