Sodium lauroyl taurate
Time: 2013-05-30 01:39:31
Sodium lauroyl taurate
Synonyms
Sodium 2-((1-oxododecyl)amino)ethanesulphonate;
N-Dodecanoyltaurine sodium salt;
Dodecanoyltaurine sodium salt;
Category
Anionic Surfactant
>> Sulfonate
>> Amido Sulfonate
>> Acyl Taurate
>> Linear Alkyl Fatty Acyl Taurate
Chemical Numbering System
CASRN70609-66-4
EINECS274-695-6
Molecular Formula & Molecular Weight
Molecular Formula: C14H28NNaO4S; C14H29N1O4S.Na
Molecular Weight: 329.43
Structure
Properties
Appearance    (1), colorless to pale yellow liquid; (2), paste; (3), solid.
Solubility    soluble in water.
Stability    stable. Under hot strong acid or hot strong alkali, easily hydrolyze.
Risk    Solid form: flammable material; irritation, 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.6) label:  
Liquid form: irritation, low irritation to skin, eye.
GHS (Rev.6) label:
Ecology    may be hazardous to environment. Water body should be given special attention.
Biodegradability    biodegradable.
Characteristics    excellent cleansing, foaming, emulsifying, dispersing, wetting, solubilizing, permeating abilities. Mild. Resistance to hard water. Easy to compatibility. Easy to thicken. Certain resistance to inorganic salt solution.
Note    (1), Can use in children products, such as shampoo, bath liquid and so on.
Synthesis
Sodium taurate reacts with lauroyl chloride, then obtain.
For further information, refer to:
United States Patent 4,352,759 Recovery of high purity N-acyl taurine in high yield;
United States Patent 4,233,229 Preparation of salt-free N-acyl taurines;
United States Patent 4,071,543 Process for the preparation of acyltaurides; etc.
Quality Standards & Test Methods
1. Physical and chemical indexes
Item
Physical and chemical indexes
Liquid or paste
Solid
Actives, %, ≥
30.0 - 60.0
90.0
pH (25°C, 1%)
7.0 - 8.5
7.0 - 8.5
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
Liquid
Solid
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 cleansing agent.
Use as foaming agent.
Use as emulsifying agent, dispersing agent.
2. Household detergents
Use as cleansing agent, foaming agent.
3. Industrial cleaning agents
Use as cleansing agent, emulsifying agent.
4. Personal care products
Cleansing agent, foaming agent, antistatic agent in personal care products.
5. Textile
Use as cleansing agent, emulsifying agent, wetting agent.
6. Pet
Use as cleansing agent, foaming agent.
Manufacturers
 
Update: 20131029(1); 20170930(2);