Octadecanedioic acid
Synonyms
Octadecane-1,18-dioic acid;
1,18-Octadecanedioic acid;
1,16-Hexadecanedicarboxylic acid;
Category
Anionic Surfactant
> Carboxylate
>> Dicarboxylate
>>> Alkyl Dicarboxylate
>>>> Linear Alkyl Dicarboxylate
Chemical Numbering System
CAS: 871-70-5
EINECS: N/A
Molecular Formula & Molecular Weight
Molecular Formula: C18H34O4
Molecular Weight: 314.46
Structure
Properties
Appearance (1), white to pale yellow solid.
Solubility slightly soluble in water. soluble in ethyl ether.
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 label: 
Ecology may be hazardous to environment. Water body should be given special attention.
Biodegradability biodegradable.
Characteristics excellent lubricating, dispersing, emulsifying, cleansing, solubilizing, anticorrosive abilities.
Synthesis
Quality Standards & Test Methods
1, Physical and chemical indexes
|
Item |
Physical and chemical indexes |
|
Solid |
|
|
Actives, %, ≥ |
98.0 |
Test Methods
(1), Actives
GB 2092 Sebacic acid for industrial use
GB/T 13173 Surface active agents -- Detergents -- Testing methods
2, Hazardous substances indexes
|
Item |
Hazardous substances indexes |
|
Solid |
|
|
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 cleansing agent.
Use as emulsifying agent, dispersing agent.
2, Organic synthesis
Use as intermediate in organic synthesis.
3, Household detergents
Use as cleansing agent.
4, Machinery industry
Lubricant in metal processing, machinery.
Lubricant, antirust agent in lubricating oil, metal working fluid.
5, Pets
Use as cleansing agent, emulsifying agent.
Manufacturers
Update: 20180128(1);