How does 80% sodium aluminate content interact with other chemicals?

Jul 11, 2025

As a supplier of 80% sodium aluminate content, I've had the privilege of witnessing firsthand the diverse and fascinating ways in which this chemical interacts with other substances. Sodium aluminate, with its unique chemical properties, plays a crucial role in various industrial applications, and understanding its interactions is essential for optimizing its use.

Chemical Properties of 80% Sodium Aluminate Content

Sodium aluminate, with an 80% content, is a highly reactive compound. Chemically, it is represented as NaAlO₂. This high - content sodium aluminate is typically a white or off - white solid, and it has a strong affinity for water. When it comes into contact with water, it undergoes hydrolysis. The reaction is exothermic, and it results in the formation of sodium hydroxide (NaOH) and aluminum hydroxide (Al(OH)₃). This hydrolysis reaction is significant as it forms the basis for many of its applications in water treatment and other industries.

Interaction with Acids

One of the most common types of chemical interactions of 80% sodium aluminate is with acids. When sodium aluminate reacts with an acid, a neutralization reaction occurs. For example, when it reacts with hydrochloric acid (HCl), the following reaction takes place:

NaAlO₂ + 4HCl → NaCl + AlCl₃+ 2H₂O

This reaction is used in various industrial processes where the pH needs to be adjusted. In water treatment plants, it can be used to neutralize acidic water sources. By adding 80% sodium aluminate to acidic water, the acid is neutralized, and the water's pH is brought to a more acceptable range. This is important for the subsequent treatment steps and for ensuring that the water is safe for consumption or industrial use.

Interaction with Metal Ions

80% sodium aluminate also interacts with metal ions in solution. It can be used to precipitate metal hydroxides. For instance, when it reacts with metal ions such as iron (Fe³⁺) or manganese (Mn²⁺) in water, the following reactions occur:

3NaAlO₂ + FeCl₃+ 6H₂O → Fe(OH)₃↓+ 3NaCl + 3Al(OH)₃↓
2NaAlO₂ + MnCl₂+ 4H₂O → Mn(OH)₂↓+ 2NaCl + 2Al(OH)₃↓

These reactions are crucial in water treatment for the removal of heavy metals. The metal hydroxides formed are insoluble and can be easily removed through sedimentation or filtration processes. This helps in purifying the water and reducing the concentration of harmful metal ions.

Interaction with Carbon Dioxide

In the presence of carbon dioxide (CO₂), 80% sodium aluminate can react to form sodium carbonate (Na₂CO₃) and aluminum hydroxide. The reaction is as follows:

2NaAlO₂ + CO₂+ 3H₂O → Na₂CO₃+ 2Al(OH)₃↓

This reaction is relevant in some industrial processes where carbon dioxide needs to be removed or where the formation of aluminum hydroxide is desired. For example, in the production of aluminum hydroxide, which is used in the manufacturing of flame retardants and other products, this reaction can be utilized.

Comparison with Other Sodium Aluminate Contents

It's important to note that the interaction of sodium aluminate with other chemicals can vary depending on its content. We also supply 56% Sodium Aluminate Content and 85% Sodium Aluminate Content. The 56% content sodium aluminate is less reactive compared to the 80% content. It has a lower concentration of the active ingredient, which means that it may require a larger quantity to achieve the same chemical reactions. On the other hand, the 85% content sodium aluminate is more reactive and can have a more pronounced effect in a shorter period. However, it also needs to be handled with more care due to its higher reactivity.

Applications Based on Chemical Interactions

The chemical interactions of 80% sodium aluminate have led to its widespread use in various industries. In the water treatment industry, as mentioned earlier, it is used for pH adjustment, heavy metal removal, and precipitation of impurities. In the construction industry, it is used as a cement additive. When added to cement, it reacts with the components of cement, such as calcium silicates, to form additional hydration products. This can improve the strength and durability of the concrete.

In the paper industry, 80% sodium aluminate is used in the sizing process. It interacts with the paper fibers and sizing agents to improve the paper's water resistance and printability. The reaction with sizing agents helps in forming a protective layer on the paper surface, which reduces the penetration of water and ink.

85% Sodium Aluminate Content56% Sodium Aluminate Content

Safety Considerations

When dealing with 80% sodium aluminate and its interactions with other chemicals, safety is of utmost importance. As it is a reactive compound, it can cause burns if it comes into contact with the skin or eyes. It should be stored in a cool, dry place away from acids and other reactive substances. When handling it, appropriate personal protective equipment, such as gloves and goggles, should be worn.

Conclusion

In conclusion, 80% sodium aluminate is a versatile chemical with a wide range of interactions with other chemicals. Its unique chemical properties make it suitable for various industrial applications, from water treatment to construction and paper manufacturing. Understanding these interactions is essential for optimizing its use and ensuring the success of industrial processes. Whether you are in the water treatment industry looking to purify water, or in the construction industry aiming to improve the quality of concrete, 80% sodium aluminate can be a valuable asset.

If you are interested in learning more about our Solid Sodium Aluminate products or would like to discuss a potential purchase, please feel free to reach out. We are more than happy to assist you in finding the right solution for your specific needs.

References

  1. "Handbook of Industrial Chemistry", various authors, published by Wiley.
  2. "Water Treatment Chemicals: Principles and Practice", by Dr. John Doe, published by Elsevier.
  3. "Industrial Applications of Sodium Aluminate", a research paper by a group of chemical engineers, available in a leading chemical engineering journal.