61788-89-4

Basic information

• Product Name: C36 Dimer acid
• Synonyms: (Octadecadienoic acid) dipolymer;Fatty acids, C18-unsatd., dimers;Fatty acids, C18 unsaturated dimers;FATTYACIDSUNSATURATEDC18DIMERSNON-DISTILLED;FATTYACIDSUNSATURATEDC18DIMERSDISTILLED;Dimerfettsure, C18, ungesttigt;C36 DIMER ACID;FATTYACIDS,DIMERACIDS
• CAS NO: 61788-89-4
• Molecular Formula: C36H68O4
• Molecular Weight: 564.92272
• EINECS: 500-148-0
• Product Categories: UVCBs-biological;Fine chemical
• Mol File: 61788-89-4.mol
• Article Data: 0

Chemical Properties

• Boiling Point: 667.7 °C at 760 mmHg
• Flash Point: 371.6 °C
• Appearance: /
• Density: 0.931 g/cm³
• Vapor Pressure: 1.47E-19mmHg at 25°C
• Refractive Index: 1.478
• CAS DataBase Reference: C36 Dimer acid(CAS DataBase Reference)
• NIST Chemistry Reference: C36 Dimer acid(61788-89-4)
• EPA Substance Registry System: C36 Dimer acid(61788-89-4)

Safety Data

• Hazardous Substances Data: 61788-89-4(Hazardous Substances Data)

Usage

Description

C36 Dimer acid is a mixture of various isomers resulting from the dimerization of linear unsaturated fatty acids or esters, primarily composed of linoleic acid from natural oils. This self-condensation process occurs through a Diels-Alder cycloaddition reaction, catalyzed by clay bodies, and includes dimers, small amounts of trimers or multimers, and traces of unreacted monomers.

Uses

Used in Coatings Industry:
C36 Dimer acid is used as a key component in the formulation of coatings, providing enhanced durability, adhesion, and resistance to various environmental factors.
Used in Surfactants Industry:
C36 Dimer acid serves as a vital ingredient in the production of surfactants, contributing to improved foaming properties, emulsification, and cleaning efficiency.
Used in Lubricants Industry:
C36 Dimer acid is utilized as a base oil or additive in lubricants, offering superior lubricating properties, reducing friction, and extending the lifespan of machinery.
Used in Printing Inks Industry:
C36 Dimer acid is employed in the development of printing inks, ensuring consistent color reproduction, improved flow properties, and better adhesion to various substrates.
Used in Hot Melt Adhesives Industry:
C36 Dimer acid is used as a critical component in hot melt adhesives, providing strong bonding capabilities, quick setting times, and resistance to temperature fluctuations.

Reaction mechanism

Dimer acid is obtained by heating and polymerizing unsaturated fatty acid under the action of catalyst. The reaction mechanism of dimerization, the current consensus view is the theory of Diels-Alder addition reaction between conjugated and non-conjugated unsaturated fatty acids.

Preparation

Dimer acid is prepared by heating and polymerizing unsaturated fatty acid under the action of catalyst.

InChI:InChI=1/C36H68O4/c1-3-5-7-9-11-16-22-28-34(30-24-18-14-20-26-32-36(39)40)33(27-21-15-10-8-6-4-2)29-23-17-12-13-19-25-31-35(37)38/h11,16,33-34H,3-10,12-15,17-32H2,1-2H3,(H,37,38)(H,39,40)/b16-11-