Name: China Supplier High Quality Best Price Dimeric ricinoleate
Brand: Wuhan Fortuna Chemical Co., Ltd.

Dimeric Ricinoleate is a specialized ester formed from dimer acid and alcohols, most commonly derived from ricinoleic acid, the principal fatty acid in castor oil. The process involves a chemical reaction called dimerization, where two molecules of ricinoleic acid are linked together to form a larger, more complex molecule known as a C36 dicarboxylic acid. This dimer acid is then esterified with an alcohol, such as glycerol or another polyol, to create the final compound.

The dimerization process creates a molecule with a branched, cyclic structure, which is fundamentally different from the straight-chain structure of the original fatty acids. This altered structure is responsible for its unique and valuable properties.

Key Properties

The unique structure of dimeric ricinoleate赋予 it a set of exceptional characteristics:

High Molecular Weight & Viscosity: It is a thick, viscous liquid.
Excellent Flexibility: The long, branched chain remains very flexible, preventing it from crystallizing or becoming brittle.
Superb Stability: It is highly resistant to oxidation, heat, and hydrolysis compared to simpler esters.
Low Volatility: It does not easily evaporate or degrade at high temperatures.
Exceptional Solvency & Compatibility: It is miscible with a wide range of oils and organic compounds.
Occlusive & Emollient: In cosmetics, it leaves a smooth, non-greasy, protective film on the skin that helps prevent moisture loss.

Synthesis

The production occurs in two main steps:

Dimerization: Ricinoleic acid is heated under controlled conditions, often with a catalyst. This causes two molecules to link together, primarily through a reaction between their double bonds, forming dimer acid.

Esterification: The resulting dimer acid is then reacted with an alcohol (e.g., glycerol, ethylene glycol) to form the ester, which is then purified.

Primary Applications

Industry	Application	Function & Benefit
Cosmetics & Personal Care	Pigment Wetting Agent: In sunscreens and color cosmetics (lipstick, makeup). Emollient & Occlusive Agent: In creams, lotions, and balms. Gloss Enhancer: In lip products.	Excellently disperses pigments for smooth color. Provides a rich, luxurious, non-sticky skin feel, enhances shine, and improves water resistance.
Polymer & Plastic Industries	Flexible Monomer: Used in synthetic polyamides (nylons) and polyesters.	Incorporates flexibility, impact resistance, and water resistance into otherwise rigid polymers. Used in hot-melt adhesives, inks, and coatings.
Industrial Lubricants	Base Oil or Additive in synthetic lubricants and greases.	Provides high thermal stability, low pour point (stays fluid at low temps), and good lubricity.

Summary

In essence, dimeric ricinoleate is a high-performance, bio-based chemical building block. Its value lies in the dimerization process, which transforms a common fatty acid into a large, complex molecule with superior stability, flexibility, and solvency. It is primarily prized for its ability to act as a non-greasy emollient and pigment dispersant in high-end cosmetics and as a flexibilizing agent for advanced polymers and lubricants, offering a sustainable alternative to petroleum-derived ingredients.