Calcium carboxymethyl cellulose
Synonyms
Carboxymethylcellulose Calcium;
Cellulose, carboxymethyl ether, calcium salt;
Category
Polymer Surfactant
> Polysaccharide and its Derivatives
>> Anionic-type
>>> Anionic Derivatives of Polysaccharide
Chemical Numbering System
CAS: 9050-04-8
EINECS: N/A
Molecular Formula & Molecular Weight
Molecular Formula: N/A
Molecular Weight: N/A
Structure
Schematic formula:
Properties
Appearance (1), solid.
Solubility insoluble in water. Swelling in water.
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: 
Animal Toxicity
Table 1 Animal toxicity values
|
guinea pig inhalation LC |
> 300mg/m3[1] |
|
mouse inhalation LC |
> 300mg/m3[1] |
|
mouse oral LD50 |
6800mg/kgmg/kg[1] |
|
rat inhalation LC |
> 300mg/m3[1] |
|
rat oral LD50 |
4400mg/kg[1] |
Ecology may be hazardous to environment. Water body should be given special attention.
Biodegradability biodegradable.
Characteristics excellent film-forming, emulsifying, dispersing, lubricating abilities.
Synthesis
Quality Standards & Test Methods
1, Physical and chemical indexes
|
Item |
Physical and chemical indexes |
|
Solid |
|
|
Actives, %, ≥ |
85.0 |
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), Chinese Pharmacopoeia (2015 Edition) Carboxymethylcellulose Calcium
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 adhesive.
Use as sustained-release agent.
2, Personal care products
Film-forming agent, emulsion stabilizer, viscosity controlling agent in personal care products.
3, Medicine
Pharmaceutical excipient, use as disintegrant, bulking agent. (This section is for reference only, should be implemented according to local Pharmacopoeia.)
Manufacturers
References
[1]: ChemIDplus. 9050-04-8, Carboxymethylcellulose calcium
Update: 20140911(1); 20200503(2);