Barium Stearate

General Information

Product Name: Barium Stearate
CAS: 6865-35-6
Catalog: SUR-AN-008
Applications: High-temperature lubricant, heat stabilizer and lubricant in PVC products, additional industrial uses

Introduction

Barium stearate, also known as barium octadecanoate, is characterized by its complex solubility behavior and moisture absorption properties. This white fine powder is a versatile compound with a wide range of industrial applications.

Characteristics

Barium stearate exhibits unique chemical and physical properties:

Appearance: Barium stearate presents as a white, fine powder.
Solubility: It is poorly soluble in water and cold ethanol but dissolves in hot ethanol, benzene, toluene, and other non-polar solvents. Upon dissolving in organic solvents and subsequent cooling, it forms a gel-like substance.
Chemical Stability: Barium stearate is reactive with strong acids, decomposing into stearic acid and the corresponding barium salt.
Hygroscopicity: Barium stearate is hygroscopic, meaning it readily absorbs moisture from the air.

Basic Parameters

Type	Appearance	Barium Content (%)	Melting Point (℃)	Weight Loss on Heating (%)	Free Acid (as stearic acid, %)	Residue on Sieve (75μm, %)
BS-1	White powder	20.5±0.4	≥ 210	≤ 0.5	≤ 0.5	≤ 0.5
BS-2	White powder	20.5±0.7	≥ 205	≤ 0.5	≤ 0.8	≤ 0.5
BS-3	White powder	20.0±1.5	≥ 200	≤ 1.0	≤ 1.0	≤ 1.0

* Typical values (not warranted values)

Applications

Barium stearate finds applications in numerous industries due to its versatile properties:

High-Temperature Lubricant: One of the primary applications of barium stearate is as a high-temperature lubricant. In machinery, it functions efficiently under extreme conditions, providing essential lubrication that reduces friction and wear. This characteristic extends its use to rubber products as a high-temperature auxiliary agent, enhancing their durability and performance in demanding environments.
Heat Stabilizer and Lubricant in PVC Products: Barium stearate is extensively used in the production of polyvinyl chloride (PVC) products. It serves as both a heat stabilizer and a lubricant, playing a dual role that is crucial for the longevity and quality of PVC materials. Among all alkaline earth metal stearates, barium stearate offers the best long-term heat resistance, making it indispensable in the manufacturing of heat-resistant PVC products.
Additional Industrial Uses: Beyond its primary applications, barium stearate is also employed as a waterproofing agent, lubricant, and bearing filler material. Its effectiveness in these roles stems from its unique chemical and physical properties. For instance, in the processing of soft transparent films, sheets, artificial leather, and rigid boards and pipes, barium stearate enhances the quality and functionality of the final products.

Packaging and Storage

Packaging Options: Typically packed in 20 kg bags, 400 kg ton bags. Custom packaging solutions can meet specific requirements.
Storage Conditions: Stored in a cool, dry place, away from sunlight and moisture, to prevent caking and ensure it remains free-flowing and easy to use.

Barium stearate's unique physical and chemical properties make it indispensable in high-temperature lubrication, PVC product manufacturing, and various other uses. As a high-end service provider in the surfactant industry, Alfa Chemistry ensures that barium stearate meets the highest standards, catering to the diverse needs of its clients. Contact Alfa Chemistry today to learn more about our products and how they can benefit your applications.

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