Neodecanoic Acid
Synonyms
2,5-Dimethyl-2-ethylhexanoic acid;
Category
Anionic Surfactant
> Carboxylate
>> Chain Carboxylate
>>> Alkyl Carboxylate
>>>> Branched Alkyl Carboxylate
Chemical Numbering System
CAS: 26896-20-8
EINECS: 248-093-9
Molecular Formula & Molecular Weight
Molecular Formula: C10H20O2
Molecular Weight: 172.26
Structure
R1+R2=7.
Properties
Appearance (1), water-white liquid.
Odor pungent odor.
Solubility slightly soluble in water. soluble in isopropanol, 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, anticorrosive, emulsifying, dispersing, cleansing, solubilizing abilities. Hydrolysis and oxidation stabilities are better than decanoic acid.
Synthesis
1, Gattermann-Koch reaction
Propylene trimer reacts with carbonic oxide, then obtain.
Quality Standards & Test Methods
1, Physical and chemical indexes
|
Item |
Physical and chemical indexes |
|
Liquid |
|
|
Actives, %, ≥ |
98.0 |
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 lubricant.
Use as corrosion inhibitor.
Use as emulsifying agent, dispersing agent.
2, Organic synthesis
Used in preparation of neodecanoic acid esters. Widely neodecanoic acid esters can be used, for example, coatings (nitrolacquer, alkyd paint, etc.).
Used in preparation of neodecanoic acid salts. Widely neodecanoic acid salts can be used, for example, adhesion-promoting agent.
Used in preparation of neodecanoyl chloride. Neodecanoyl chloride can be used to synthesize peroxide initiator.
3, Lubricating
Lubricant in lubricating oil.
4, Adhesive
Adhesion-promoting agent in adhesion of rubber and metal.
Manufacturers
Update: 20131102(1); 20180306(2);