Sodium C14-17 sec-alkyl sulphonate
Time: 2012-09-28 16:38:42; Reading: 1969

Sodium C14-17 sec-alkyl sulphonate

Synonyms

Sodium C14-17 sec-alkyl sulfonate;

Sulfonic acids, C14-17 sec-alkane, sodium salts;

SAS;

Category

Anionic Surfactant

> Sulfonate

>> Chain Sulfonate

>>> Alkyl Sulfonate

>>>> Linear Alkyl Sulfonate

Chemical Numbering System

CASRN:97489-15-1

EINECS:307-055-2

Molecular Formula & Molecular Weight

Molecular Formula: C14H29NaO3S - C17H35NaO3S; C14H30O3S.Na - C17H36O3S.Na

Molecular Weight: 300.43 - 342.51

Structure

R1+R2=C13-16.

Properties

Appearance    (1), pale yellow liquid; (2), yellow paste; (3), yellow granule.

Solubility    soluble in water.

Hygroscopicity    hygroscopic.

Stability    stable.

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

GHS (Rev.8) label:  

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

Biodegradability    biodegradable.

Characteristics    excellent permeating, wetting, dispersing, cleansing, emulsifying, solubilizing, foaming abilities. Resistant to oxidation. Tolerance to high temperature.

Note    (1), Avoid using in children products, such as shower gels, shampoo, skin care products, and so on.

Synthesis

Sulfoxidation method is the typical method for preparing linear alkyl sulfonate.

C14-17 alkane reacts with sulfur dioxide and oxygen, then refine and obtain finished product.

For further information, see:

United States Patent 4,643,813 Process for producing alkanesulfonic acids,

United States Patent 4,680,147 Process for the isolation under mild conditions of paraffinsulfonate and sulfuric acid from reaction mixtures from paraffin sulfoxidation,

United States Patent 4,798,915 Process for the extraction of paraffins from mixtures thereof with alkane-sulfonic acids,

United States Patent 4,808,343 Process for isolating paraffinsulfonates with a low alkali metal sulfate content and sulfuric acid from paraffin-sulfoxidation reaction mixtures without obligatory production of sodium sulfate,

United States Patent 4,827,078 Process for extracting paraffins from their mixtures with alkanesulfonic acids,

United States Patent 4,843,184 Process for extracting paraffins from their mixtures with paraffinsulfonic acids,

United States Patent 8,426,642 Method for isolating concentrated paraffin sulfonic acids,

United States Patent 4,454,075 Process for removing sulfuric acid from the reaction mixture obtained in the sulfoxidation of paraffins,

United States Patent 4,310,473 Process for separating sulfuric acid from sulfoxidation output,

United States Patent 3,960,938 Extraction of sulfuric acid from sulfuric acid-sulfonic acid mixtures, and so on.

Quality Standards & Test Methods

1, Physical and chemical indexes

Item

Physical and chemical indexes

Liquid or Paste

Solid

Actives, %, ≥

30.0 - 70.0

90.0

pH (25°C, 1% solution)

7.5 - 10.0

7.5 - 10.0

Test Methods

(1), Actives

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

Liquid or Paste

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 permeating agent, wetting agent.

Use as emulsifying agent, dispersing agent.

2, Household detergents

Use as cleansing agent, wetting agent, foaming agent. Such as washing powder, laundry detergent and other products.

3, Food industry

Use as cleansing agent, wetting agent, foaming agent. Such as dishwasher cleaning agent, tableware cleaning agent and other products.

4, Industrial cleaning agents

Cleansing agent, permeating agent, wetting agent in metal cleaning products and other industrial cleaning products.

5, Textile, printing and dyeing

Use as permeating agent, cleansing agent, emulsifying agent, dispersing agent.

6, Pets

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

7, Personal care products

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

Manufacturers

 

Update: 20131027(1); 20170716(2);