Disodium 4-(octadecenyl) 2-sulphonatosuccinate
Time: 2017-09-19 22:00:43

Disodium 4-(octadecenyl) 2-sulphonatosuccinate

Synonyms

Disodium 4-(octadecenyl) 2-sulfosuccinate;

Category

Anionic Surfactant

> Sulfonate

>> Ester Sulfonate

>>> Sulfosuccinate(Ester) Salt

>>>> Sulfosuccinic Acid Linear Alkenyl Alcohol Ester Salt

Chemical Numbering System

CASRN94021-02-0

EINECS301-395-5

Molecular Formula & Molecular Weight

Molecular Formula: C22H38Na2O7S; C22H40O7S.2Na

Molecular Weight: 492.58

Structure

Properties

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

Solubility    soluble in water.

Stability    stable in weak acid, weak alkali, hard water. Under strong acid or strong alkali, easily hydrolyze. Easily oxidized.

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

GHS (Rev.7) label:  

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

Biodegradability    biodegradable.

Characteristics    excellent emulsifying, dispersing, wetting, cleansing, foaming, solubilizing, permeating abilities. Good lime soap dispersing power. Suitable for neutral formula system.

Synthesis

(1), Esterification reaction

Maleic anhydride reacts with octadecenyl alcohol, obtain octadecenyl maleate.

(2), Sulfonation reaction

Octadecenyl maleate reacts with sodium bisulfite, then obtain this product.

Quality Standards & Test Methods

1, Physical and chemical indexes

Item

Physical and chemical indexes

Solid

Actives, %, ≥

80.0

pH (25°C, 1%)

4.5 - 7.5

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

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, Product standards

(1), Chinese standards

(1a), QB/T 4085 Disodium sulfosuccinate

4, Further explanation

(a), On physical and chemical indexes: firstly, shall be indicated carbon atom distribution; secondly, shall be indicated average molecular weight.

Major Uses

1, Typical Applications

Use as wetting agent, permeating agent.

Use as emulsifying agent, dispersing agent.

Use as hydrotrope.

2, Textile, leather

Use as wetting agent, permeating agent, emulsifying agent.

3, Household detergents

Use as wetting agent, emulsifying agent.

4, Industrial cleaning agents

Use as wetting agent, emulsifying agent, hydrotrope.

Manufacturers