What are the applications of sodium aluminate with 37% content?
Jul 17, 2025
As a supplier of sodium aluminate with 37% content, I am often asked about the various applications of this chemical compound. Sodium aluminate is a versatile substance with a wide range of uses across different industries. In this blog post, I will explore some of the key applications of 37% sodium aluminate and how it can benefit various sectors.
Water Treatment
One of the primary applications of 37% sodium aluminate is in water treatment. Sodium aluminate is commonly used as a coagulant aid in the purification of drinking water and wastewater treatment processes. When added to water, sodium aluminate reacts with impurities such as suspended solids, colloids, and organic matter, causing them to clump together and settle out of the water. This process, known as coagulation, helps to remove turbidity, color, and other contaminants from the water, making it clearer and safer to drink.
In addition to its coagulation properties, sodium aluminate also helps to adjust the pH of the water. It can be used to raise the pH of acidic water, which is important for maintaining the effectiveness of other water treatment chemicals such as chlorine and fluoride. By adjusting the pH, sodium aluminate helps to optimize the water treatment process and ensure the quality of the treated water.
Paper Industry
The paper industry is another major consumer of 37% sodium aluminate. In papermaking, sodium aluminate is used as a sizing agent and a filler. As a sizing agent, sodium aluminate helps to improve the strength and durability of paper by reducing its absorbency. This makes the paper more resistant to water, ink, and other liquids, which is important for applications such as printing, packaging, and writing.
As a filler, sodium aluminate can be added to the paper pulp to increase its brightness, opacity, and smoothness. It can also help to reduce the cost of paper production by replacing more expensive fillers such as titanium dioxide. By using sodium aluminate as a filler, paper manufacturers can produce high-quality paper at a lower cost.
Construction Industry
In the construction industry, 37% sodium aluminate is used as a concrete accelerator and a cement additive. As a concrete accelerator, sodium aluminate helps to speed up the setting and hardening of concrete. This is particularly useful in cold weather conditions, where the normal setting time of concrete can be significantly extended. By using sodium aluminate as an accelerator, construction workers can reduce the time required for concrete to set and cure, allowing them to complete projects more quickly.
As a cement additive, sodium aluminate can improve the strength and durability of cement. It can also help to reduce the water demand of cement, which is important for preventing cracking and shrinkage in concrete. By using sodium aluminate as a cement additive, construction companies can produce stronger and more durable concrete structures.
Chemical Industry
The chemical industry also makes extensive use of 37% sodium aluminate. It is used in the production of various chemicals such as zeolites, alumina, and sodium hydroxide. Zeolites are a group of porous minerals that are widely used as catalysts, adsorbents, and ion exchangers in the chemical industry. Sodium aluminate is a key raw material in the production of zeolites, as it provides the aluminum and sodium ions required for their synthesis.
Alumina, also known as aluminum oxide, is a widely used ceramic material with a variety of applications in the chemical, electrical, and aerospace industries. Sodium aluminate is used in the production of alumina through the Bayer process, which involves the extraction of aluminum oxide from bauxite ore.
Sodium hydroxide, also known as caustic soda, is a strong base that is used in a variety of industrial processes such as paper manufacturing, soap production, and water treatment. Sodium aluminate can be used as a source of sodium hydroxide in the production of this chemical.
Other Applications
In addition to the above applications, 37% sodium aluminate has several other uses. It is used in the production of refractory materials, which are used to line furnaces and other high-temperature equipment. Sodium aluminate can also be used as a flame retardant in plastics and textiles, as well as a catalyst in organic synthesis reactions.
Furthermore, sodium aluminate is used in the production of detergents and cleaning agents. It can help to improve the cleaning power of these products by acting as a builder, which helps to remove dirt and stains from surfaces.
Conclusion
In conclusion, 37% sodium aluminate is a versatile chemical compound with a wide range of applications across different industries. Its properties as a coagulant aid, sizing agent, concrete accelerator, and chemical intermediate make it an important ingredient in many industrial processes. As a supplier of 37% sodium aluminate, I am committed to providing high-quality products and excellent customer service to meet the needs of my customers.
If you are interested in purchasing 37% sodium aluminate for your specific application, please feel free to contact me for more information. We can discuss your requirements and provide you with a competitive quote. I look forward to the opportunity to work with you and help you find the right solution for your business.
References
- Kirk-Othmer Encyclopedia of Chemical Technology
- Ullmann's Encyclopedia of Industrial Chemistry
- Handbook of Chemistry and Physics