Octadecanoic acid (Stearic acid)

Stearic acid is produced by the hydrolysis of fats and oils, primarily used in the production of stearates. It appears as a white waxy transparent solid or a pale yellow waxy solid, which can be dispersed into powder, with a slight tallow-like odor. Mono- or polyhydric alcohol esters of stearic acid can be used in cosmetics, non-ionic surfactants, plasticizers, etc. Its alkali metal salts are soluble in water and are one of the main components of soap, while other metal salts can be used as waterproofing agents, lubricants, bactericides, coating additives, and PVC stabilizers. Currently, the vast majority of domestic stearic acid producers import palm oil from abroad, hydrogenate it into hardened oil, and then hydrolyze and distill it to produce stearic acid.

Basic Introduction

Chinese Name: Stearic Acid

Chemical Name: Stearic Acid

INCI Name: Stearic Acid

CAS Registry Number: 57-11-4

EINECS Registry Number: 266-928-5

Molecular Formula: C18H36O2

Molecular Weight: 284.48

HS Code: 2915701000

Synonyms: Octadecanoic acid, 18 acid, Stearic acid, Stearate, Stearin, Stearyl acid, Octadecylic acid, Octadecanoic acid, C18 acid, Stearic acid type 800, C18

Application Fields

1. Food Additive: Stearic acid and its salts are often used as food additives, mainly to enhance the flavor and texture of food. It is sometimes used as a base component for flavors in foods such as chocolate, candy, and biscuits. Its antibacterial properties make it useful as a preservative in certain foods, extending their shelf life.

2. Chemical Industry: Stearic acid can be used to prepare various surfactants, such as sodium stearate and stearamide. These surfactants play roles in emulsifying, cleaning, and foaming in products like detergents and cleaning agents.

3. Pharmaceutical Manufacturing: In the pharmaceutical field, stearic acid is used to prepare certain drugs and drug carriers. It is also used in some topical medications for its antibacterial and anti-inflammatory effects. As a synthetic raw material, stearic acid can be used to prepare pharmaceutical intermediates and catalysts in synthesis processes.

4. Daily Chemical Industry: Stearic acid is one of the main components of soap, capable of producing rich foam and having good cleaning ability. It is also used in hair care products like shampoo. Its moisturizing properties make it an important ingredient in body wash and hand cream, helping to keep the skin hydrated. Stearic acid is also a common cosmetic ingredient used in products like facial cleansers and skin creams for its lubricating and moisturizing effects.

Packaging Method

Kraft Bag

Stability and Storage Conditions

Store in a cool, well-ventilated warehouse. Keep away from fire and heat sources. Protect from direct sunlight. Keep containers sealed. Should be stored separately from oxidizers, acids, acid anhydrides, and acyl chlorides. Avoid mixed storage. Equip with appropriate types and quantities of fire-fighting equipment. The storage area should be equipped with leak emergency handling equipment and suitable containment materials.