Disodium ethylene dicocamide PEG disulfate
Time: 2012-09-27 17:29:39

Disodium ethylene dicocamide PEG disulfate

Synonyms

Disodium ethylenedi-(N-coco-acyl-N-sulfonatopoly(oxyethylene)amine);

Category

Anionic Surfactant

> Sulfate

>> Amide Group Polyether Sulfate

>>> Amide Group Polyoxyethylene Ether Sulfate

>>>> Natural Substance Amide Derivatives Polyoxyethylene Ether Sulfate

Chemical Numbering System

CAS RNN/A

EINECSN/A

Molecular Formula & Molecular Weight

Molecular Formula: N/A

Molecular Weight: N/A

Structure

R: coco group.

Properties

Appearance    (1), liquid; (2), paste; (3), solid.

Solubility    soluble in water. The solubility increases with the increase of EO number.

Stability    stable in alkali, weak acid and hard water; unstable in strong acid, easily hydrolyzes.

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

GHS (Rev.7) label: 

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

Biodegradability    biodegradable.

Characteristics    excellent cleansing, foaming, emulsifying, wetting, permeating, dispersing, solubilizing, foam stabilizing abilities. Resistant to hard water. Performance is affected by EO number, such as: with the increase of EO number, cleansing capability decreases, solubilization capacity increases.

Note    (1), Products that has low content of 1,4-dioxane can be used in children cleaning products.

(2), 1,4-dioxane generated during preparation: probable carcinogen. However, can be acceptable when concentration of 1,4-dioxane is less than 30ppm or less.

Synthesis

Currently, sulfated reaction through continuous reactor (such as: falling film reactor) is the most widely used method for preparing sulfates.

Ethylene dicocamide PEG and sulfur trioxide react through reactor, then sodium hydroxide neutralizes, finally obtain product.

For further information, please refer to:

US patent 8,921,588 Process for preparing sulfates and/or sulfonates in a micro-reaction system.

Quality Standards & Test Methods

1, Physical and chemical indexes

Item

Physical and chemical indexes

High-enriched type

Low-enriched type

Actives, %, ≥

60.0

25.0 - 30.0

pH (25°C, 1% solution)

6.5 - 9.5

6.5 - 9.5

1,4-Dioxane, ppm, ≤

30

30

Test Methods

(1), Actives

 

(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

(3), 1,4-Dioxane

GB/T 26388 Determination of dioxane residues in surfactants - Gas chromatographic method

ISO 17280 Surface active agents -- Determination of 1,4-dioxan residues in surfactants obtained from epoxyethane by gas chromatography

2, Hazardous substances indexes

Item

Hazardous substances indexes

High-enriched type

Low-enriched type

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 emulsifying agent, dispersing agent.

Use as wetting agent, permeating agent.

Use as foam stabilizing agent, foaming agent.

Use as solubilizing agent.

2, Personal care products

Cleansing agent, foam stabilizing agent, conditioning agent in personal care products.

3, Household detergents

Main ingredient or auxiliary ingredient for foaming agent in laundry detergent, hard surface detergent (for example: glass detergent) and other household products.

4, Industrial cleaning agents

Main ingredient or auxiliary ingredient for emulsifying agent, foaming agent in car cleaning products, metal cleaning products and other industrial cleaning products.

5, Emulsion polymerization

Emulsifier, particle size controlling agent in emulsion polymerization.

6, Textile, leather

Use as emulsifier, foaming agent, cleansing agent, solubilizing agent.

7, Pets

Main ingredient or auxiliary ingredient for cleansing agent, foaming agent in shampoos and other pet products.

Product members

Disodium ethylene dicocamide PEG-15 disulfate;

Manufacturers

 

Update: 20131018(1); 20170225(2);