Sodium dodecenesulfonate
Synonyms
Dodecene-1-sulfonic acid, sodium salt (1:1);
Category
Anionic Surfactant
> Sulfonate
>> Chain Sulfonate
>>> Alkenyl Sulfonate
>>>> Linear Alkenyl Sulfonate
Chemical Numbering System
CASRN：30965-85-6
EINECS：N/A
Molecular Formula & Molecular Weight
Molecular Formula: C12H23NaO3S; C12H24O3S.Na
Molecular Weight: 270.36
Structure
Schematic formula:
Properties
Appearance (1), solid.
Solubility soluble in water.
Stability stable.
Risk Solid form: flammable material; irritation, moderate irritation to skin, eye, respiratory. Harmful products of combustion are CO, CO2 and so on. Contact with strong oxidants, can cause to burn.
GHS (Rev.10) label: 
Generally, irritation is lower than the corresponding carbon chain alkylbenzene sulfonate.
Ecology may be hazardous to environment. Water body should be given special attention.
Biodegradability biodegradable.
Characteristics excellent foaming, cleansing, emulsifying, wetting, dispersing, solubilizing, permeating abilities.
Note (1), Avoid using in children products, such as shower gels, shampoo, skin care products, and so on.
Synthesis
Quality Standards & Test Methods
1, Physical and chemical indexes
|
Item |
Physical and chemical indexes |
|
Solid |
|
|
Actives, %, ≥ |
85.0 |
|
Unsulfonated materials, %, ≤ |
5.0 |
|
pH (25°C, 1% solution) |
7.5 - 11.0 |
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), Unsulfonated materials
GB/T 11989 Anionic surface active agents - Determination of soluble matter content in light petroleum
ISO 894 Surface active agents -- Technical sodium primary alkylsulphates -- Methods of analysis
(3), 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 foaming agent.
Use as cleansing agent.
Use as emulsifying agent, dispersing agent.
2, Household detergents
Use as cleansing agent, foaming agent.
3, Industrial cleaning agents
Use as cleansing agent, foaming agent.
4, Pets
Main ingredient or auxiliary ingredient for cleansing agent, foaming agent in shampoos and other pet products.
Manufacturers
Update: 20170626(1);