Undecylenic acid
Synonyms
Undecenoic acid;
Category
Anionic Surfactant
> Carboxylate
>> Chain Carboxylate
>>> Alkenyl Carboxylate
>>>> Linear Alkenyl Carboxylate
Chemical Numbering System
CAS: 1333-28-4
EINECS: 215-583-9
Molecular Formula & Molecular Weight
Molecular Formula: C11H20O2
Molecular Weight: 184.28
Structure
Schematic formula:
Properties
Appearance (1), liquid; low temperature: solid.
Solubility slightly soluble in water.
Stability stable. Easily oxidized.
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 antimicrobial, antibacterial, preservative, cleansing, emulsifying, dispersing, wetting, anti-rust, anticorrosive, lubricating, solubilizing abilities.
Synthesis
Quality Standards & Test Methods
1, Physical and chemical indexes
|
Item |
Physical and chemical indexes |
|
Liquid |
|
|
Actives, %, ≥ |
95.0 |
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, Product standards
(1), Chinese standards
(1a), QB/T 4418 10-Undecenoic acid
(1b), Chinese Pharmacopoeia (2015 Edition) Undecylenic acid
4, 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, according to local regulations and standards.
Major Uses
1, Typical applications
Use as preservative, antimicrobial agent.
Use as cleansing agent.
Use as emulsifying agent, dispersing agent.
Use as lubricant.
2, Personal care products
Preservative, cleansing agent, emulsifying agent in personal care products.
* * * * * *
Further information:
(1), In accordance with EU regulations (EC) No 1223/2009, directive 2007/17/EC, be included in Annex V/18.
Maximum concentration is 0.2% (as acid).
(2), In accordance with Safety and Technical Standards for Cosmetics (2015 Edition) of China, be included in preservatives allowed.
Maximum concentration is 0.2% (as acid).
3, Medicine
Use as pharmaceutical ingredient (disinfectant and antiseptic). (This section is for reference only, should be implemented according to local Pharmacopoeia.)
Manufacturers
Update: 20140309(1); 20180909(2);