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Calcium/Sodium Bentonite - Shijiazhuang Baifeng Mining | Swelling Capacity, Adsorption, Thermal Stability
19 . Sep, 2025

Introduction to Calcium/Sodium Bentonite

Calcium/Sodium Bentonite is a naturally occurring clay mineral renowned for its unique physical and chemical properties. This product, offered by Shijiazhuang Baifeng Mining Co., Ltd, is widely used across various industries due to its high swelling capacity, adsorption ability, and thermal stability. The product is available in powder form with specifications ranging from 325 mesh to 2000 mesh, offering flexibility for diverse applications.

Calcium/Sodium Bentonite - Shijiazhuang Baifeng Mining | Swelling Capacity, Adsorption, Thermal Stability

Product Overview

Calcium/Sodium Bentonite is a type of clay derived from volcanic ash, characterized by its ability to absorb large amounts of water and expand significantly. This property makes it ideal for applications requiring sealing, filtration, and stabilization. The product is available in two primary colors: white and yellow, as noted in the specifications. Its chemical formula is Ca0.5Na0.5(Al2(Si4O10)(OH)2), with a CAS number of 1302-78-9.

Calcium/Sodium Bentonite - Shijiazhuang Baifeng Mining | Swelling Capacity, Adsorption, Thermal Stability

Key Features and Advantages

Calcium/Sodium Bentonite offers several advantages that make it a preferred choice in industrial applications:

  • High Swelling Capacity: The clay can absorb up to 10 times its weight in water, making it effective for sealing and moisture control.
  • Excellent Adsorption: It efficiently adsorbs impurities, making it suitable for filtration and purification processes.
  • Thermal Stability: The material maintains its structural integrity at high temperatures, ideal for applications in refractory materials.
  • Cost-Effective: Its abundance and ease of processing contribute to its economic viability.
Calcium/Sodium Bentonite - Shijiazhuang Baifeng Mining | Swelling Capacity, Adsorption, Thermal Stability

Technical Specifications

Parameter Specification
Product Name Calcium/Sodium Bentonite
Mesh Size 325 mesh - 2000 mesh
Form Powder
Color White and Yellow
CAS Number 1302-78-9
Chemical Formula Ca0.5Na0.5(Al2(Si4O10)(OH)2)

Applications in Various Industries

Calcium/Sodium Bentonite's versatility allows it to be used in a wide range of industries:

1. Construction and Civil Engineering

It is used as a sealing material in underground construction, such as in the lining of tunnels and shafts. Its swelling properties help prevent water leakage, ensuring structural integrity.

2. Environmental Protection

The material is employed in the production of geosynthetic clay liners (GCLs), which are used to contain hazardous waste and prevent soil and groundwater contamination. According to the National Institute of Standards and Technology (NIST), such materials are critical for ensuring compliance with environmental regulations.

3. Oil and Gas Industry

Calcium/Sodium Bentonite is a key component in drilling muds, where it helps to stabilize boreholes and remove cuttings. Its ability to form a thin, impermeable layer on the walls of the borehole prevents fluid loss and maintains pressure.

4. Manufacturing and Refractories

The material is used in the production of refractory bricks and other high-temperature materials due to its thermal stability. It acts as a binder, enhancing the structural strength of the final product.

5. Medical and Pharmaceutical Industries

Its adsorption properties make it useful in the production of medicinal products, such as antacids and adsorbents for detoxification. The NIST has conducted research on the use of such materials in drug delivery systems, highlighting their potential for improving therapeutic outcomes.

Company Background: Shijiazhuang Baifeng Mining Co., Ltd

Shijiazhuang Baifeng Mining Co., Ltd is a leading manufacturer and supplier of industrial minerals, including Calcium/Sodium Bentonite. With a commitment to quality and innovation, the company has established itself as a trusted partner for businesses worldwide. Their product line is designed to meet the stringent requirements of various industries, ensuring reliability and performance.

The company's dedication to research and development is evident in its ability to provide customized solutions for clients. By leveraging advanced technologies and sustainable practices, Shijiazhuang Baifeng Mining Co., Ltd. continues to set industry standards.

Conclusion

Calcium/Sodium Bentonite is a critical material in modern industrial applications, offering a unique combination of properties that make it indispensable in sectors such as construction, environmental protection, and manufacturing. Its versatility, combined with the expertise of companies like Shijiazhuang Baifeng Mining Co., Ltd, ensures that industries can rely on high-quality solutions for their needs.

As technology advances, the demand for materials like Calcium/Sodium Bentonite will continue to grow. By staying informed about the latest developments and applications, businesses can harness the full potential of this remarkable material.

References

NIST (National Institute of Standards and Technology) (2025). https://www.nist.gov/

Shijiazhuang Baifeng Mining Co., Ltd. (2025). https://www.baifengmining.com/calcium-sdoium-bentonite.html

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