Sodium Polypropoxypolyethoxy Carboxylate
Synonyms
Polypropoxypolyethoxy carboxylic acid, sodium salt;
Category
Anionic Surfactant
> Carboxylate
>> Polyether Carboxylate
>>> Alkyl Polyether Carboxylate
>>>> Polyoxypropylene Polyoxyethylene Ether Carboxylate
Chemical Numbering System
CAS: N/A
EINECS: N/A
Molecular Formula & Molecular Weight
Molecular Formula: N/A
Molecular Weight: N/A
Structure
Schematic formula:
Properties
Appearance (1), liquid; or solid.
Solubility slightly soluble to soluble in water. Determined by the ratio of EO and PO
Stability stable.
Risk Liquid form: irritation, irritation to skin, eye.
GHS label: 
Ecology may be hazardous to environment. Water body should be given special attention.
Biodegradability biodegradable.
Characteristics excellent cleansing, emulsifying, dispersing, wetting, permeating, solubilizing, lubricating abilities. Performance varies with EO number, PO number. The foaming ability can be controlled by adjusting EO/PO ratio.
Note (1), 1,4-dioxane generated during polyether preparation: probable carcinogen. However, can be acceptable when concentration of 1,4-dioxane is less than 30ppm or less.
Synthesis
(1), Chloroacetic acid process (Discontinuous process)
Obtained that polyether react with chloroacetic acid, sodium hydroxide.
The residual amount of sodium chloroacetate should be controlled in this process.
(2), Direct oxidation process (Continuous process)
Under the action of catalyst, polyether is directly oxidized and neutralized by sodium hydroxide, then obtained.
The advantage of this process is that the final product does not contain sodium chloroacetate and sodium chloride.
Quality Standards & Test Methods
1, Physical and chemical indexes
|
Item |
Physical and chemical indexes |
||
|
#1 |
#2 |
#3 |
|
|
Actives, %, ≥ |
90.0 |
80.0 |
25.0 |
|
Solid content, %, ≥ |
96.0 |
86.0 |
26.0 |
|
NaCl*, %, ≤ |
10.0 |
8.0 |
4.0 |
|
Sodium chloroacetate*, ppm, ≤ |
20 |
20 |
10 |
|
pH (25°C, 1% solution) |
7.0 - 9.0 |
7.0 - 9.0 |
6.0 - 9.0 |
|
*: Only applicable to products using chloroacetic acid process. |
|||
Test Methods
(1), Actives
GB/T 13173 Surface active agents -- Detergents -- Testing methods
(2), Solid content
QB/T 2950 Alkylpolyethoxy Carboxylate
(3), NaCl
QB/T 2950 Alkylpolyethoxy Carboxylate
(4), Sodium chloroacetate
QB/T 2950 Alkylpolyethoxy Carboxylate
(5), pH
GB/T 6368 Surface active agents -- Determination of pH of aqueous solution - Potentiometric method
ISO 4316 Surface active agents -- Determination of pH of aqueous solutions -- Potentiometric method
2, Hazardous substances indexes
|
Item |
Hazardous substances indexes |
|
Solid / liquid |
|
|
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.
Major Uses
1, Typical applications
Use as cleansing agent.
Use as emulsifying agent, dispersing agent.
Use as solubilizing agent.
Use as wetting agent, permeating agent.
Use as lubricant.
2, Machinery
Emulsifying agent, cleansing agent in water-based metalworking fluids.
3, Industrial cleaning
Cleansing agent in industrial cleaning.
Cleansing agent (low foaming product) in spray cleaning.
4, Textile, leather
Cleansing agent, degreasing agent, permeating agent, refining agent in textile, leather.
5, Petroleum
Emulsifying agent, viscosity depressant in oil field.
Product members
Manufacturers
Update: 20131111(1); 20181126(2);