Calcium Carrageenan
Synonyms
Carrageenan, calcium salt;
Category
Polymer Surfactant
> Polysaccharide and its Derivatives
>> Anionic-type
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Chemical Numbering System
CAS: 9049-05-2
EINECS: N/A
Molecular Formula & Molecular Weight
Molecular Formula: N/A
Molecular Weight: N/A
Structure
kappa-type:
iota-type:
lambda-type:
Properties
Appearance (1), powder.
Solubility soluble in hot water. Slightly soluble in water.
Stability stable. Under strong acid condition, easily hydrolyzed.
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
|
hamster oral LD50 |
6180mg/kg[1] |
|
mouse oral LD50 |
8710mg/kg[1] |
|
rabbit oral LD50 |
2280mg/kg[1] |
|
rat oral LD50 |
5140mg/kg[1] |
Reproductive effect[1].
Ecology may be hazardous to environment. Water body should be given special attention.
Biodegradability biodegradable.
Characteristics excellent film-forming, emulsifying, dispersing, lubricating, sustained-release abilities. lambda-type: Can not form gel. iota-type: Can form gel.
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, 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 film-forming agent.
Use as thickening agent.
Use as slow-release agent.
Use as dispersing agent, emulsifying agent.
Use as gel-forming agent.
2, Personal care products
Film-forming agent, emulsion stabilizer, viscosity controlling agent in personal care products.
Manufacturers
References
[1]: ChemIDplus. 9049-05-2, Calcium carrageenan
Update: 20140911(1); 20200426(2);