Stearic Acid Rubber Grade Acid Value 196 Min


:   Octadecanoic acid

Cas Number

:   57-11-4

HS Code

:   3823.11.00




Basic Info

Appearance Name

:   White Beads/Flakes

Common Names

:   Octadecanoic acid


: 25 Kg Bag

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Technical Document

Brief Overview

Octadecanoic acid, synonymous with stearic acid, represents a saturated fatty acid present in high-fat plant and animal sources, renowned for its myriad health benefits. Presenting as a waxy white solid with a molar mass of 284.48 g/mol and a chemical formula of CH3(CH2)16CO2H, it holds a distinct place. Natural fats encompass oleic, palmitic, and stearic acids, with nearly equal proportions of oleic and palmitic acids pivotal for commercial stearic acid production. Frequently encountered in nature as a mixed triglyceride or an ester of fatty alcohol, stearic acid is notably more concentrated in animal fats compared to their plant-derived counterparts.


Manufacturing Process

Stearic acid is synthesized predominantly from fatty acids, and the production process is customized to meet specific quality standards and chosen raw materials. Various procedures are utilized to ensure adherence to these criteria. Tallow and grease serve as the primary source materials commonly used in the synthesis of stearic acid. The production process comprises two essential stages:

a. Hydrolysis: Raw materials (oil or fat) undergo hydrolysis, leading to the generation of glycerin and fatty acids. Subsequently, the two final products are separated.

b. Separation: The refinement of stearic acid involves the purification and separation of the fatty acid mixture in the second stage.

Paint Industry

Stearic acid is an useful wax modifier in the candlemaking process. This non-toxic component provide candles with brighter white look while also enhancing their durability and opacity. Additionally, it improves the shape-holding of freestanding candles, especially in the warmer months. It additionally improves the melting point and general endurance hardness of the candle. In addition to candlemaking, its exceptional shape properties combined with stability make it a highly desired material for many kinds of creative and craft applications.


Detergent Industry

Stearic acid holds a crucial role as a fundamental ingredient in the formulation of cosmetics and soaps, encompassing face wash, shampoo, beauty soaps, and shaving cream. Its primary function involves thickening or solidifying soap, thereby contributing to its structural integrity. Beyond this, stearic acid serves as a powerful cleanser and an emulsifying agent, facilitating the amalgamation of water and oil to deliver products with a velvety-smooth and creamy texture. This versatile component is commonly incorporated into formulations for face cleansers, shampoos, and shaving creams.


Fragrance and Flavoring Industry

Stearic acid is frequently used to intentionally improve the flavor and texture of a variety of food items as a binder and flavoring ingredient. Its many uses include the production of margarine, soft drinks, chewing gum, pastries, spreads that are creamy, and artificial sweeteners, to name a few. Stearic acid is purposefully added to these formulations in order to enhance the sensory qualities and aesthetic appeal of the goods, making the customer experience even more enjoyable.

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