Ammonium lauryl sulfosuccinate
Synonyms
Butanedioic acid, sulfo-, 1-dodecyl ester, monoammonium salt;
Category
Anionic Surfactant
> Sulfonate
>> Ester Sulfonate
>>> Sulfosuccinate(Ester) Salt
>>>> Sulfosuccinic Acid Linear Alkyl Alcohol Ester Salt
Chemical Numbering System
CAS: 221391-03-3
EINECS: N/A
Molecular Formula & Molecular Weight
Molecular Formula: C16H33NO7S; C16H30O7S.H3N
Molecular Weight: 383.50
Structure
Properties
Appearance (1), white waxy solid; (2), slightly yellow transparent liquid; (3), paste.
Solubility soluble in water.
Stability stable in weak acid, hard water. Under strong acid or strong alkali, easily hydrolyze. Under alkaline conditions, ammonia is released.
Risk Solid form: flammable material; irritation, low irritation to skin, eye. Harmful products of combustion are CO, CO2 and so on. Contact with strong oxidants, can cause to burn.
GHS label: 
Liquid form: irritation, low irritation to skin, eye.
GHS label:
Ecology may be hazardous to environment. Water body should be given special attention.
Biodegradability biodegradable.
Characteristics excellent emulsifying, dispersing, wetting, cleansing, foaming, solubilizing, permeating abilities. Good lime soap dispersing power. Suitable for neutral formula system.
Synthesis
(1), Esterification reaction
Maleic anhydride reacts with lauryl alcohol, obtain lauryl maleate.
(2), Sulfonation reaction
Lauryl maleate reacts with ammonium bisulfite, then obtain this product.
Quality Standards & Test Methods
1, Physical and chemical indexes
|
Item |
Physical and chemical indexes |
|
|
Solid |
Liquid |
|
|
Actives, %, ≥ |
80.0 |
30.0 |
|
pH (25°C, 1%) |
4.5 - 7.0 |
4.5 - 7.0 |
Test Methods
(1), Actives
(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 |
Liquid |
|
|
Heavy metals (as Pb), mg/kg, ≤ |
20 |
20 |
|
As, mg/kg, ≤ |
3 |
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.
Major Uses
1, Typical Applications
Use as wetting agent, permeating agent.
Use as emulsifying agent, dispersing agent.
2, Textile, leather
Use as wetting agent, permeating agent.
3, Household detergents
Use as cleansing agent, emulsifying agent.
4, Personal care products
Use as cleansing agent, foaming agent.
5, Industrial cleaning agents
Use as cleansing agent, emulsifying agent.
Manufacturers
Update: 20131028(1); 20170823(2);