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Sodium Methyl Oleyl Taurate

Time:2012-09-29 16:57:54; Reading: 39

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

CASRN:137-20-2

EINECS:205-285-7

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.10) label:  

Liquid form: irritation, low irritation to skin, eye.

GHS (Rev.10) 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);

Document

[Terminology] Dispersion system

[Terminology] Vesicle

Pandect of Ester surfactants (1): Definition

[Terminology] Van Der Waals force

[Terminology] Micellar aggregation number

Standard

Test methods of surfactants, catalog, Chinese national standards

Surfactants, catalog, Chinese national standards

Test methods of materials, catalog, Chinese national standards

Basic standards of materials, catalog, Chinese national standards

Test methods of textile auxiliaries, catalog, Chinese national standards