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Docosahexaenoic acid

Time:2013-06-15 00:55:34; Reading: 12

Docosahexaenoic acid

Synonyms

Docosahexaenoic acids;

Category

Anionic Surfactant

> Carboxylate

>> Chain Carboxylate

>>> Alkenyl Carboxylate

>>>> Linear Polyenyl Carboxylate

Chemical Numbering System

CASRN:25167-62-8

EINECS:N/A

Molecular Formula & Molecular Weight

Molecular Formula: C22H32O2

Molecular Weight: 328.49

Structure

Schematic formula:

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

 

Quality Standards & Test Methods

1, Physical and chemical indexes

Item

Physical and chemical indexes

Liquid

Actives, %, ≥

95.0

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, 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, according to local regulations and standards.

Major Uses

1, Typical applications

Use as lubricant.

Use as cleansing agent.

Use as emulsifying agent, dispersing agent.

2, Personal care products

Conditioning agent, antistatic agent in personal care products.

Manufacturers

 

Update: 20140309(1); 20180909(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