Sodium Methyl Oleyl Taurate
Time: 2012-09-29 16:57:54
Sodium Methyl Oleyl Taurate
Synonyms
Sodium-N-Methyl-N-Oleyl Taurate;
N-Methyl-N-Oleyl Taurate Sodium Salt;
Sodium Oleylmethyltaurine;
Sodium 2-(methyl-((Z)-1-oxooctadec-9-enyl)amino)ethanesulfonate;
Taurine, N-oleyl-N-methyl-, sodium salt;
Category
Anionic Surfactant
>> Sulfonate
>> Amido Sulfonate
>> Acyl Taurate
>> Linear Alkenyl Fatty Acyl Taurate
Chemical Numbering System
CASRN137-20-2
EINECS205-285-7
Molecular Formula & Molecular Weight
Molecular Formula: C21H40NNaO4S; C21H41N1O4S.Na
Molecular Weight: 425.60
Structure
Properties
Appearance    (1), pale yellow liquid; (2), solid.
Solubility    soluble in water.
Stability    stable. Under hot strong acid or hot strong alkali, easily hydrolyze. Easily oxidized.
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:
Animal Toxicity
Table 1 Animal toxicity values
rat oral LD50
1700mg/kg[1]
mouse oral LD50
6630mg/kg[1]
mouse intravenous LD50
350mg/kg[1]
Ecology    may be hazardous to environment. Water body should be given special attention.
Biodegradability    biodegradable.
Characteristics    excellent cleansing, foaming, emulsifying, dispersing, wetting, solubilizing, permeating, lubricating 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 methyltaurate reacts with oleyl 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
Solid
Actives, %, ≥
20.0 - 70.0
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.
Mild. Rich, delicate foam.
5. Textile
Use as cleansing agent, refining agent, leveling agent.
Can be used in precision processing of wool, silk.
6. Pet
Use as cleansing agent, foaming agent.
Manufacturers
 
References
[1]: ChemIDplus. 137-20-2, Sodium N-methyl-N-oleoyltaurate
Update: 20131029(1); 20171010(2);