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Sodium Lauroyl Sarcosine

Time:2012-10-06 16:28:33; Reading: 86

Sodium Lauroyl Sarcosine

Synonyms

Sodium lauroyl sarcosinate;

Glycine, N-methyl-N-(1-oxododecyl)-, sodium salt;

N-Methyl-N-(1-oxododecyl)glycine, sodium salt;

Sodium N-lauroylsarcosinate;

Sodium N-lauroylsarcosine;

Sodium lauroylsarcosinate;

Category

Anionic Surfactant

> Carboxylate

>> Acyl Imino Acid Salt

>>> Fatty Acyl Imino Acid Salt

>>> Linear Alkyl Acyl Imino Acid Salt

Chemical Numbering System

CASRN:137-16-6

EINECS:205-281-5

Molecular Formula & Molecular Weight

Molecular Formula: C15H28NNaO3; C15H29N1O3.Na

Molecular Weight: 293.38

Structure

Properties

Appearance    (1), colorless to pale yellow liquid; (2), white solid.

Solubility    soluble in water.

Stability    stable.

Risk    Solid form: flammable material; irritation, irritation to skin, eye, respiratory system. Harmful products of combustion are CO, CO2 and so on. Contact with strong oxidants, can cause to burn.

GHS (Rev.10) label:  

Ecology    may be hazardous to environment. Water body should be given special attention.

Biodegradability    biodegradable.

Characteristics    excellent cleansing, emulsifying, dispersing, solubilizing, foaming, antirust, anticorrosive, wetting abilities. Good compatibility. Resistance to hard water. Easily thickened. Mild surfactant. Suitable for “non-sulfate” formula system.

Note    (1), Can be used in children cleaning products.

Synthesis

 

Quality Standards & Test Methods

1, Physical and chemical indexes

Item

Physical and chemical indexes

Solid

Liquid

Actives, %, ≥

90.0

25.0 - 65.0

pH (25°C, 1% solution)

5.5 - 9.5

5.5 - 9.5

Test Methods

(1), Actives

GB/T 13173 Surface active agents - Detergents - Testing methods

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

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.

(b), Used in cosmetics, should be test for harmful substances or furtherly test for microorganisms, according to local regulations and standards.

Major Uses

1, Typical applications

Use as cleansing agent.

Use as dispersing agent, emulsifying agent.

2, Personal care products

Conditioning agent, antistatic agent, cleansing agent, emulsifying agent, viscosity controlling agent in personal care products.

Good compatibility with skin, hair. Suitable for sensitive skin.

Use as caries preventing agent.

3, Machinery

Use as cleansing agent, anticorrosive agent, antirust agent.

Manufacturers

 

Update: 20131124(1); 20190107(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