What are the melting point of 37% sodium aluminate?

As a supplier of 37% sodium aluminate content, I often get inquiries about the properties of this chemical compound, especially its melting point. Sodium aluminate is a crucial industrial chemical with a wide range of applications, and understanding its melting point is essential for various industrial processes. In this blog, we'll delve into the melting point of 37% sodium aluminate, explore its significance, and provide some insights into its applications.

What is Sodium Aluminate?

Sodium aluminate is a chemical compound with the formula NaAlO₂, often found in various forms such as solids or liquids. It is produced by reacting aluminum hydroxide with sodium hydroxide. The 37% sodium aluminate we supply refers to a solution where sodium aluminate accounts for 37% of the total content, and the rest is typically water and other minor components.

Determining the Melting Point of 37% Sodium Aluminate

The melting point of a pure substance is a well - defined temperature at which it changes from a solid to a liquid state under standard atmospheric pressure. However, for a 37% sodium aluminate solution, the concept is a bit more complex. A solution is a homogeneous mixture, and instead of having a single melting point like a pure compound, it has a freezing - point depression compared to pure water.

The freezing point of a 37% sodium aluminate solution is lower than that of pure water. The exact value can vary depending on factors such as the presence of impurities, the specific chemical environment, and the measurement conditions. Generally, a 37% sodium aluminate solution will not have a sharp melting point as it does not solidify into a pure crystalline structure. When cooled, it may form a super - cooled liquid or a slushy mixture before eventually solidifying over a range of temperatures.

Research has shown that the freezing point of a sodium aluminate solution is significantly affected by its concentration. As the concentration of sodium aluminate increases, the freezing point decreases. For a 37% solution, the freezing point can be estimated to be around - 10°C to - 20°C, but this is only an approximation. In industrial settings, precise measurements are often required, and specialized equipment such as differential scanning calorimetry (DSC) can be used to accurately determine the temperature range at which the solution changes from a liquid to a solid state.

Significance of the Melting Point

Understanding the melting point of 37% sodium aluminate is of great importance in several industrial applications.

1. Transportation and Storage: In regions with cold climates, knowing the freezing point helps in planning the transportation and storage of sodium aluminate solutions. If the temperature drops below the freezing point, the solution may solidify, which can cause blockages in pipes and storage containers. By taking appropriate measures such as insulation or heating, the risk of solidification can be minimized.

2. Industrial Processes: Many industrial processes that use sodium aluminate require it to be in a liquid state. For example, in the production of Molecular Sieve Specific Sodium Aluminate, maintaining the solution in a liquid form is crucial for proper mixing and reaction. If the temperature is too low and the solution solidifies, it can disrupt the production process and lead to inconsistent product quality.

3. Formulation and Blending: When formulating products that contain sodium aluminate, the melting point information is used to ensure that the solution remains stable during the blending process. This is important for achieving a homogeneous mixture and ensuring the effectiveness of the final product.

Applications of 37% Sodium Aluminate

37% sodium aluminate has a diverse range of applications across different industries:

1. Water Treatment: It is commonly used in water treatment plants to remove impurities and suspended solids from water. Sodium aluminate reacts with certain contaminants, causing them to coagulate and settle out of the water. This helps in improving the clarity and quality of the water.

2. Paper Industry: In the paper industry, sodium aluminate is used as a sizing agent. It helps to improve the strength and water - resistance of paper by forming a thin film on the paper fibers.

3. Construction Industry: Sodium Aluminate for Accelerator is used as a concrete accelerator. It speeds up the setting time of concrete, which is particularly useful in cold weather conditions or when quick construction is required.

4. Textile Industry: It is used in the textile industry for dyeing and printing processes. Sodium aluminate helps in fixing dyes to the fabric, resulting in more vibrant and long - lasting colors.

Quality Assurance of Our 37% Sodium Aluminate

As a supplier, we are committed to providing high - quality 37% sodium aluminate. Our production process is strictly monitored to ensure that the concentration of sodium aluminate remains at 37% with minimal variations. We conduct regular quality checks using advanced analytical techniques to verify the chemical composition and physical properties of our products.

We also pay close attention to the storage and transportation of our sodium aluminate solutions. Our products are stored in temperature - controlled environments to prevent any changes in their properties. During transportation, we use appropriate insulation and heating systems if necessary to ensure that the solution remains in a liquid state.

Conclusion

The melting point of 37% sodium aluminate is an important property that has significant implications for its transportation, storage, and various industrial applications. While it does not have a well - defined single melting point like a pure compound, understanding the freezing - point depression and the approximate temperature range at which it solidifies is crucial for efficient industrial operations.

If you are in need of high - quality 37% sodium aluminate for your industrial processes, whether it's for water treatment, paper production, construction, or any other application, we are here to serve you. Our Liquid Sodium Aluminate is of the highest quality and meets all the industry standards. We invite you to contact us for further discussions and to start a procurement negotiation. We believe that our products and services can meet your specific requirements and contribute to the success of your business.

References

• Kirk - Othmer Encyclopedia of Chemical Technology.
• Industrial Inorganic Chemistry by Ulrich Müller.
• Journal of Chemical and Engineering Data for specific research on sodium aluminate solutions.