Dodecanoyl Monoethanolamide Sulfate Sodium Salt
Synonyms
Lauric acid monoethanolamide sulfate sodium salt;
Category
Anionic Surfactant
> Sulfate
>> Amide-based Sulfate
>>> Fatty Acid Amide Derivatives Sulfate
>>>> Linear Fatty Acid Amide Derivatives Sulfate
Chemical Numbering System
CAS: N/A
EINECS: N/A
Molecular Formula & Molecular Weight
Molecular Formula: C14H28NNaO5S; C14H29N1O5S.Na
Molecular Weight: 345.43
Structure
Properties
Appearance (1), white powder.
Solubility soluble in water.
Stability stable in weak alkali, weak acid and hard water; unstable in strong acid, strong alkali.
Risk Solid form: flammable material; irritation, low irritation to skin, eye, respiratory. Harmful products of combustion are CO, CO2 and so on. Contact with strong oxidants, can cause to burn.
GHS label: 
Ecology may be hazardous to environment. Water body should be given special attention.
Biodegradability biodegradable.
Characteristics excellent cleansing, emulsifying, foaming, wetting, permeating, dispersing, solubilizing abilities. Resistant to hard water. Mild surfactant.
Note (1), Can be used in children cleaning products, such as: shower gels, shampoo.
Synthesis
(1), Lauric acid monoethanolamide is obtained by amidation of lauric acid (or lauroyl chloride) and monoethanolamine;
(2), Dodecanoyl monoethanolamide sulfate is obtained by sulfation of lauric acid monoethanolamide and sulfur trioxide;
(3), Purify and obtain a white powdery solid, by neutrallzation of alkaline substances, such as sodium hydroxide.
Quality Standards & Test Methods
1, Physical and chemical indexes
|
Item |
Physical and chemical indexes |
|
Solid |
|
|
Actives, %, ≥ |
85.0 - 95.0 |
|
pH (25°C, 10% solution) |
6.5 - 9.5 |
Test Methods
(1), Actives
GB/T 5173 Surface active agents and detergents -- Determination of anionic-active matter by direct two-phase titration procedure
ISO 2271 Surface active agents -- Detergents -- Determination of anionic-active matter by manual or mechanical direct two-phase titration procedure
(2), 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 |
|
|
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.
2, Household detergents
Use as cleansing agent.
3, Industrial cleaning agents
Main ingredient or auxiliary ingredient for cleansing agent in metal cleaning products, rubber cleaning products and other industrial cleaning products.
4, Personal care products
Use as emulsifier, cleansing agent, foaming agent.
5, Textile
Use as refining agent.
Manufacturers
Update: 20131018(1); 20160919(2);