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Conjugated linoleic acid

Time:2014-01-28 20:13:59; Reading: 5

Conjugated linoleic acid

Synonyms

9,11(or 10,12)-Octadecadienoic acid;

Octadecadienoic acid;

Octadecadienoic acid, conjugated;

CLA;

Category

Anionic Surfactant

> Carboxylate

>> Chain Carboxylate

>>> Alkenyl Carboxylate

>>>> Linear Alkenyl Carboxylate

Chemical Numbering System

CASRN:121250-47-3

EINECS:N/A

Molecular Formula & Molecular Weight

Molecular Formula: C18H32O2

Molecular Weight: 280.45

Structure

Properties

Appearance    (1), liquid.

Solubility    insoluble in water.

Stability    stable. Easily oxidized.

Risk    Liquid 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 lubricating, emulsifying, dispersing, solubilizing, cleansing abilities.

Synthesis

Prepared by isomerization.

For further information, please refer to:

United States Patent 9,149,053 Method for producing conjugated linoleic acid; United States Patent 8,203,012 Process for preparing conjugated linoleic acid and derivatives thereof from ricinoleic acid; United States Patent 7,241,910 Processes for producing conjugated linoleic acid; United States Patent 6,960,456 Method for preparing conjugated linoleic acid; United States Patent 6,420,577 Method for commercial preparation of conjugated linoleic acid; United States Patent 6,414,171 Method for commercial preparation of conjugated linoleic acid from by-products of vegetable oil refining; United States Patent 6,409,649 Method for commercial preparation of conjugated linoleic acid using recycled alkali transesterification catalyst; etc.

Quality Standards & Test Methods

1, Physical and chemical indexes

Item

Physical and chemical indexes

Liquid

 

70.0 - 80.0

Actives, %, ≥

95.0

Test Methods

(1), Conjugated linoleic acid

 

(2), 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, Hazardous substances indexes

Item

Hazardous substances indexes

Liquid

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.

Major Uses

1, Typical applications

Use as lubricant.

Use as cleansing agent.

Use as emulsifying agent, dispersing agent.

2, Food

Use as raw material.

3, Personal care products

Conditioning agent in personal care products.

Manufacturers

 

Update: 20180526(1);

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