Isononanoic Acid
Synonyms
Isononylic acid;
Category
Anionic Surfactant
> Carboxylate
>> Chain Carboxylate
>>> Alkyl Carboxylate
>>>> Branched Alkyl Carboxylate
Chemical Numbering System
CAS: 26896-18-4
EINECS: 248-092-3
Molecular Formula & Molecular Weight
Molecular Formula: C9H18O2
Molecular Weight: 158.24
Structure
R: iso-C8.
Properties
Appearance (1), colorless oily liquid.
Solubility slightly soluble in water. soluble in ethanol, benzene.
Stability stable.
Risk Liquid 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 label: 
Ecology may be hazardous to environment. Water body should be given special attention.
Biodegradability biodegradable.
Characteristics excellent lubricating, emulsifying, dispersing, cleansing, solubilizing abilities. Oxidation stability is better than azelaic acid.
Synthesis
To the relevant contents, may refer:
United States Patent 9,434,675 Method for producing isononanoic acid esters, starting from 2-ethyl hexanol,
United States Patent 9,334,225 Vinyl esters of isononanoic acid starting from 2-ethyl hexanol, methods for the production thereof and use thereof.
Quality Standards & Test Methods
1, Physical and chemical indexes
|
Item |
Physical and chemical indexes |
|
Liquid |
|
|
Actives, %, ≥ |
99.0 |
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, Hazardous substances indexes
|
Item |
Hazardous substances indexes |
|
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 cleansing agent.
Use as emulsifying agent, dispersing agent.
Use as lubricant.
2, Organic synthesis
Used in preparation of isononylic acid esters. Widely isononylic acid esters can be used in personal care products, perfume, plasticizer.
Used in preparation of isononylic acid salts. Widely isononylic acid salts can be used in cleaning products, paints.
3, Lubricating
Lubricant, corrosion inhibitor in metal processing liquid, lubricating oil.
4, Coatings
Drier in paint.
Manufacturers
Update: 20131102(1); 20180306(2);