Ricinoleic Acid
Applications: Intermediate for surfactants, coatings, and plasticizers.
Ricinoleic Acid is the primary fatty acid found in castor oil, accounting for approximately 85-90% of its composition. This 12-hydroxy monounsaturated fatty acid is unique in its structure, featuring a hydroxyl group on the 12th carbon atom, which imparts distinctive chemical and functional properties. Ricinoleic acid is a versatile raw material widely used across industries, including cosmetics, pharmaceuticals, and industrial applications, owing to its excellent lubricity, emulsifying capability, and biodegradability.
Chemical Properties of Ricinoleic Acid
- Chemical Formula: C18H34O3
- Molecular Weight: 298.46 g/mol
- Structure:
- Hydroxyl group (-OH) at the 12th position.
- Double bond between the 9th and 10th carbons (cis configuration).
- Appearance: Pale yellow, viscous liquid.
Key Features of Ricinoleic Acid
- Unique Hydroxyl Group:
- Enhances solubility in alcohol and provides superior emulsifying properties.
- High Viscosity and Lubricity:
- Ideal for applications requiring enhanced lubrication and smoothness.
- Biodegradable and Renewable:
- Sourced from castor oil, making it environmentally friendly.
- Thermal and Chemical Stability:
- Performs well under varying temperatures and chemical exposures.
- Skin-Conditioning Properties:
- Offers moisturizing and anti-inflammatory benefits in personal care formulations.
Applications of Ricinoleic Acid
- Cosmetics and Personal Care:
- A key ingredient in moisturizers, lip balms, and hair care products for its hydrating and emollient properties.
- Used in soaps and cleansers for its natural cleansing action.
- Pharmaceuticals:
- Serves as a carrier and excipient in drug formulations.
- Anti-inflammatory and antimicrobial properties support topical and therapeutic applications.
- Industrial Lubricants:
- Used in high-performance lubricants for its excellent viscosity and thermal stability.
- Surfactants and Emulsifiers:
- Plays a crucial role in producing detergents, emulsifiers, and stabilizers.
- Paints and Coatings:
- Acts as a plasticizer and stabilizer in the formulation of coatings, inks, and varnishes.
- Chemical Intermediates:
- Used as a precursor in the synthesis of sebacic acid, esters, and polymers.
Advantages of Ricinoleic Acid
- Eco-Friendly:
- Naturally derived and biodegradable, contributing to sustainable practices.
- Versatility:
- Suitable for applications ranging from cosmetics to industrial formulations.
- Enhanced Stability:
- Offers resistance to oxidation and degradation, ensuring product longevity.
- Skin-Friendly:
- Safe and non-toxic, making it ideal for personal care products.
- Cost-Effective:
- Efficiently sourced from castor oil with a reliable supply chain.
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