Carbomer 934
Synonyms
Acrylic acid, polymer with sucrose polyallyl ether;
Category
Polymer Surfactant
> Acrylic Polymers
>> Anionic Acrylic Polymers
Chemical Numbering System
CAS: 9007-16-3
EINECS: N/A
Molecular Formula & Molecular Weight
Molecular Formula: N/A
Molecular Weight: N/A
Structure
Properties
Appearance (1), white solid.
Solubility insoluble in water. The aqueous solution is acidic.
Hygroscopicity hygroscopic.
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
|
dog oral LD |
>8000mg/kg[1] |
|
guinea pig oral LD50 |
2500mg/kg[1] |
|
mouse oral LD50 |
4550mg/kg[1] |
|
rat oral LD50 |
4100mg/kg[1] |
Ecology may be hazardous to environment. Water body should be given special attention.
Biodegradability biodegradable.
Characteristics excellent film-forming, dispersing, emulsifying, adsorbing abilities. The suitable pH value is 4-10. Poor tolerance to ions; worse poor tolerance to heavy metal ions. Poor tolerance to cation.
Synthesis
Quality Standards & Test Methods
1, Physical and chemical indexes
|
Item |
Physical and chemical indexes |
|
Solid |
|
|
Actives, %, ≥ |
95.0 |
Test Methods
(1), Actives
GB/T 13173 Surface active agents -- Detergents -- Testing methods
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), QB/T 4530 Carbomer
(1b), Chinese Pharmacopoeia (2020 Edition) Carbomer Copolymer
(1c), Chinese Pharmacopoeia (2020 Edition) Carbomer Homopolymer
(1d), Chinese Pharmacopoeia (2020 Edition) Carbomer Interpolymer
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 film-forming agent.
Use as dispersing agent, emulsifying agent.
Use as thickening agent.
Use as gelling agent.
2, Personal care products
Emulsion stabilizer, gel-forming agent, viscosity controlling agent in personal care products.
3, Medicine
Pharmaceutical excipient, use as ointment base, release blocker. (This section is for reference only, should be implemented according to local Pharmacopoeia.)
Manufacturers
References
[1]: ChemIDplus. 9007-16-3, Acrylic acid, polymer with sucrose polyallyl ether
Update: 20140908(1); 20201018(2);