Potassium 4-cumenesulfonate
Time: 2017-04-11 22:51:15

Potassium 4-cumenesulfonate

Synonyms

Potassium cumenesulfonate;

Potassium 4-(2-propyl)benzene sulfonate;

Benzenesulfonic acid, 4-(1-methylethyl)-, potassium salt;

Category

Anionic Surfactant

> Sulfonate

>> Aryl Sulfonate

>>> Phenyl Sulfonate

>>>> Linear Alkylphenyl Sulfonate

Chemical Numbering System

CASRN164524-02-1

EINECS629-764-9

Molecular Formula & Molecular Weight

Molecular Formula: C9H11KO3S; C9H12O3S.K

Molecular Weight: 238.35

Structure

Properties

Appearance    (1), white powder; (2), liquid.

Solubility    soluble in water.

Stability    stable.

Risk    Solid form: flammable material; irritation, moderate 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:  

Liquid form: irritation, moderate 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 hydrotropic, viscosity reducing, pour point depressing, anti-caking, dispersing, emulsifying abilities.

Synthesis

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

Generally, 4-cumene and sulfur trioxide react through reactor, then potassium hydroxide or potassium carbonate neutralizes, finally obtain product.

US patent 8,921,588 (Process for preparing sulfates and/or sulfonates in a micro-reaction system) presents a synthetic process. Conditions: mole ratio of sulfur trioxide and alkyl benzenes or other raw materials: 1:1; temperature: 30-60°C; reactor: falling film reactor.

Quality Standards & Test Methods

1, Physical and chemical indexes

Item

Physical and chemical indexes

Liquid

Solid

Actives, %, ≥

30.0 - 50.0

90.0

pH (25°C, 1%)

7.0 - 10.5

7.0 - 10.5

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

Liquid

Solid

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 hydrotrope.

Use as auxilialy emulsifying agent, auxilialy dispersing agent.

2, Household detergents

Use as hydrotrope, anticoagulant, anti-caking agent. For example: washing powder.

3, Industrial cleaning agents

Use as hydrotrope, anticoagulant, anti-caking agent.

4, Personal care products

Use as hydrotrope.

5, Pets

Use as hydrotrope.

Manufacturers