Trilinoleic Acid
Time: 2012-10-04 16:16:36

Trilinoleic Acid


9,12-Octadecadienoic acid (Z,Z)-, trimer;

9,12-Octadecadienoic acid (9Z,12Z)-, trimer;


Anionic Surfactant

>> Carboxylate

>> Dimer Acid and Trimer Acid Salt

Chemical Numbering System



Molecular Formula & Molecular Weight

Molecular Formula: C54H96O6

Molecular Weight: 841.34




Appearance    (1), brown to black liquid.

Odor    smell of grease.

Solubility    insoluble in water. soluble in ethyl ether.

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 (Rev.7) label:  

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

Biodegradability    biodegradable.

Characteristics    excellent lubricating, anticorrosive, antirust, emulsifying, dispersing, solubilizing abilities.


Obtained by polymerization of linoleic acid.

Quality Standards & Test Methods

1. Physical and chemical indexes


Physical and chemical indexes


Actives, %, ≥


Test Methods

(1), Actives

GB/T 13173 Surface active agents - Detergents - Testing methods

GB/T 5173 Surface active agents and detergentsDetermination 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


Hazardous substances indexes


Heavy metals (as Pb), mg/Kg, ≤


As, mg/Kg, ≤


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.

(b), Used in cosmetics, should be test for harmful substances; or furtherly test for microorganisms.

Major Uses

1. Typical applications

Use as lubricant.

Use as emulsifying agent, dispersing agent.

2. Organic synthesis

Widely used in preparation of trilinoleic acid ester. Trilinoleic acid ester can be used in lubricants, personal care products, etc.

Widely used in preparation of polyamide.

3. Personal care products

Conditioning agent, viscosity controlling agent, emollient, refatting agent in personal care products.

4. Machinery industry

Lubricant, antirust agent in metalworking fluid.

Extreme pressure agent, anti-friction agent in lubricant oils.

5. Petroleum

Corrosion inhibitor in oil field.



Update: 20131102(1); 20180530(2);