What are the quality control standards for 85% sodium aluminate content?

As a trusted supplier of 85% sodium aluminate content, I understand the importance of maintaining high - quality control standards. Sodium aluminate is a versatile chemical compound with a wide range of applications, from water treatment to the production of zeolites and refractory materials. Ensuring the 85% content is consistent and meets the required quality is crucial for the satisfaction of our customers and the success of their projects.

Chemical Composition and Purity

The most fundamental quality control standard for 85% sodium aluminate content is its chemical composition. The percentage of sodium aluminate (NaAlO₂) should be precisely 85% within an acceptable margin of error. We conduct regular chemical analyses using advanced techniques such as X - ray fluorescence (XRF) and inductively coupled plasma mass spectrometry (ICP - MS). These methods allow us to accurately determine the elemental composition of our sodium aluminate products.

In addition to the main component, we also strictly control the levels of impurities. Impurities such as iron, silica, and heavy metals can have a significant impact on the performance of sodium aluminate in different applications. For example, high iron content can cause discoloration in water treatment applications, while silica can affect the reactivity in the production of zeolites. Our quality control team sets strict limits for these impurities, and each batch of product is tested to ensure it meets these specifications.

Physical Properties

The physical properties of 85% sodium aluminate are also important quality control factors. The particle size distribution is a critical parameter, especially for applications where the sodium aluminate needs to dissolve quickly. We use laser diffraction particle size analyzers to measure the particle size of our products. A consistent particle size distribution ensures uniform dissolution rates and better performance in various processes.

The bulk density and moisture content are other important physical properties. High moisture content can lead to caking and reduced shelf - life of the product. We use moisture analyzers to measure the moisture content accurately and take measures to control it during the production and packaging processes. The bulk density affects the handling and storage of the product, and we ensure that it falls within the specified range.

Solubility

Solubility is a key quality indicator for sodium aluminate. In most applications, the sodium aluminate needs to dissolve completely in water or other solvents. We test the solubility of our 85% sodium aluminate by dissolving a known amount of the product in a specific volume of water at a given temperature and agitation speed. The solubility should meet the requirements of our customers, and any deviation from the standard solubility can indicate a problem with the product quality.

Stability

The stability of 85% sodium aluminate is another important aspect of quality control. Sodium aluminate can react with carbon dioxide in the air over time, forming sodium carbonate and aluminum hydroxide. This reaction can reduce the effective content of sodium aluminate and affect its performance. We conduct stability tests by exposing the product to different environmental conditions, such as high humidity and temperature, and monitoring the changes in its chemical composition over time. Our products are designed to have good stability during storage and transportation to ensure that they reach our customers in optimal condition.

Quality Control Process

Our quality control process starts from the raw material stage. We source high - quality raw materials from reliable suppliers and conduct incoming inspections to ensure their quality. During the production process, we have in - process quality control checks at various stages. For example, we monitor the reaction conditions, such as temperature, pressure, and reaction time, to ensure the production of high - quality 85% sodium aluminate.

After the production is completed, each batch of product undergoes a comprehensive final inspection. This includes chemical analysis, physical property testing, solubility testing, and stability testing. Only when a batch of product passes all these tests is it approved for packaging and shipment. We also maintain detailed records of all quality control tests, which can be provided to our customers upon request.

Comparison with Other Grades

We also offer other grades of sodium aluminate, such as 80% Sodium Aluminate Content and 56% Sodium Aluminate Content. Each grade has its own quality control standards, which are tailored to its specific applications. The 85% sodium aluminate is typically used in applications where a higher concentration and better performance are required, while the lower - grade products may be more suitable for less demanding applications.

Compared with Solid Sodium Aluminate of other grades, our 85% sodium aluminate offers a better balance between performance and cost - effectiveness in many applications. However, we understand that different customers have different needs, and we are committed to providing the right product for each customer's specific requirements.

Quality Assurance and Customer Satisfaction

We are committed to providing high - quality 85% sodium aluminate products and excellent customer service. Our quality assurance system is based on international standards, and we continuously improve our quality control processes to meet the changing needs of our customers. We believe that customer satisfaction is the key to our success, and we work closely with our customers to understand their requirements and provide them with the best solutions.

If you are looking for a reliable supplier of 85% sodium aluminate content, we invite you to contact us for more information. Our experienced sales team is ready to answer your questions and discuss your specific needs. We can provide samples for you to test and evaluate the quality of our products. Whether you are in the water treatment industry, the production of zeolites, or other related fields, we are confident that our 85% sodium aluminate will meet your expectations.

References

• ASTM International standards related to chemical analysis and physical property testing of inorganic compounds.
• Technical literature on the applications of sodium aluminate in water treatment and other industries.
• Internal quality control manuals and records of our company.