Polyacrylamide
Synonyms
2-Propenamide, homopolymer;
PAA;
PAM;
Category
Polymer Surfactant
> Acrylic Polymers
>> Non-ionic Acrylic Polymers
Chemical Numbering System
CAS: 9003-05-8
EINECS: N/A
Molecular Formula & Molecular Weight
Molecular Formula: N/A
Molecular Weight: N/A
Structure
Properties
Appearance (1), white powder.
Solubility soluble 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
|
mouse oral LD50 |
12950mg/kg[1] |
|
rabbit oral LD50 |
11250mg/kg[1] |
|
rat intraperitoneal LD50 |
3600mg/kg[1] |
|
rat oral LD50 |
>1000mg/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.
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), GB/T 13940 Polyacrylamide
(1b), GB/T 17514 Water treatment chemicals—Anionic and non-ionic polyacrylamides
(1c), GB 31629 Food safety national standard -- Food additive -- Polyacrylamide
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 flocculant.
Use as suspending agent.
Use as water-absorbing agent.
Use as thickening agent.
2, Personal care products
Film-forming agent, binding agent, antistatic agent in personal care products.
Further information:
(1), In accordance with Safety and Technical Standards for Cosmetics (2015 Edition) of China, be included in the restricted components. Can be used in body leave-on products and other products.
(1a), Body leave-on products: Maximum residual content of acrylamide is 0.1mg/kg;
(1b), Other products: Maximum residual content of acrylamide is 0.5mg/kg.
(2), In accordance with EU regulations (EC) No 1223/2009, directive 2002/34/EC, be included in Annex III/66. Can be used in body leave-on products and other products.
(2a), Body leave-on products: Maximum residual content of acrylamide is 0.1mg/kg;
(2b), Other products: Maximum residual content of acrylamide is 0.5mg/kg.
3, Petroleum
Polymeric oil-displacing agent in petroleum.
4, Paper-making
Use as papermaking additive.
5, Water treatment
Flocculant in water treatment.
6, Food
Use as food additive (flocculant, filter aid).
Manufacturers
References
[1]: ChemIDplus. 9003-05-8, Polyacrylamide
Update: 20140908(1); 20201030(2);