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Potassium 2-ethylhexanoate

Time:2012-10-03 16:30:43; Reading: 59

Potassium 2-ethylhexanoate

Synonyms

2-Ethylcaproic acid, potassium salt;

2-Ethylhexanoic acid, potassium salt;

Potassium 2-ethylcaproate;

Hexanoic acid, 2-ethyl-, potassium salt;

Hexanoic acid, 2-ethyl-, potassium salt (1:1);

Category

Anionic Surfactant

> Carboxylate

>> Chain Carboxylate

>>> Alkyl Carboxylate

>>>> Branched Alkyl Carboxylate

Chemical Numbering System

CASRN:3164-85-0

EINECS:221-625-7

Molecular Formula & Molecular Weight

Molecular Formula: C8H15KO2; C8H16O2.K

Molecular Weight: 182.30

Structure

Properties

Appearance    (1), white to slightly yellow solid powder; (2), pale yellow viscous liquid.

Solubility    soluble in water. soluble in ethyl ether. 10% aqueous solution: transparent or slightly milky.

Stability    stable.

Risk    Solid 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:  

Liquid form: irritation, irritation to skin, eye.

GHS (Rev.10) label: 

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

Biodegradability    biodegradable.

Characteristics    excellent emulsifying, dispersing, wetting, permeating, lubricating, antibacterial, preservative, cleansing, solubilizing abilities.

Synthesis

2-Ethylhexanoic acid reacts with potassium hydroxide or potassium carbonate, then obtain.

Quality Standards & Test Methods

1, Physical and chemical indexes

Item

Physical and chemical indexes

Solid

Liquid

Actives, %, ≥

97.0

50.0 - 80.0

pH (25°C, 1% solution)

7.5 - 9.5

7.5 - 9.5

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), 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 (or 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.

Major Uses

1, Typical applications

Use as wetting agent.

Use as emulsifying agent, dispersing agent.

2, Coatings

Drier in paint. Alternative to potassium naphthenate.

3, Polymer

Catalyst in polyurethane foam reaction. Usually use with cobalt soaps together, can reduce using amount of cobalt soap.

Manufacturers

 

Update: 20131102(1); 20180316(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