Sodium Sulphate Anhydrous (Na2SO4), specifically the 99% industrial grade, stands as a cornerstone chemical compound indispensable across a wide array of manufacturing processes. With the CAS number 7757-82-6, this inorganic salt is valued for its versatility, cost-effectiveness, and critical functionalities in demanding industrial environments. Available primarily as a white crystalline powder or granules, it possesses distinct properties that make it a preferred choice for various applications.

As a leading supplier, NINGBO INNO PHARMCHEM CO.,LTD. recognizes the significant role of high-quality Sodium Sulphate Anhydrous 99% Industrial Grade in global industries. Our commitment is to provide a product that consistently meets stringent quality standards, ensuring reliability and optimal performance for our clients' applications. This grade is characterized by its high purity, low water-insoluble matter, and minimal impurities, making it suitable for sensitive industrial uses.

One of the most substantial applications of Sodium Sulphate Anhydrous is within the pulp and paper industry. It is predominantly used in the Kraft process for producing sulfate pulp. In this method, it acts as a makeup chemical to replenish sulfur losses from the recovery cycle. The sulfate is reduced to sulfide, which is a crucial component of the white liquor used for digesting wood chips into pulp. Approximately 70% of the global consumption of Sodium Sulphate Anhydrous is attributed to this vital sector, highlighting its importance in paper production.

Beyond papermaking, Sodium Sulphate Anhydrous plays a significant role in the synthetic detergent industry. Here, it serves primarily as a filler material. Its neutrality and compatibility with various detergent components make it an ideal additive. It helps to standardize the concentration of active ingredients, improve powder flow properties, and reduce the cost of the final product without compromising cleaning performance. It contributes to the bulk density and appearance of detergent powders, although its use has slightly decreased in some markets favoring concentrated or liquid formulations, it remains a key ingredient in many formulations globally.

The glass manufacturing industry also heavily relies on Sodium Sulphate Anhydrous. In glass production, it functions as a fining agent, aiding in the removal of bubbles from the molten glass. It also acts as a fluxing agent, helping to reduce the melting temperature of silica, thereby saving energy and improving the overall efficiency of the glass melting process. Its purity is particularly important in producing clear, high-quality glass for windows, containers, and other applications.

In the textile industry, Sodium Sulphate Anhydrous serves as a leveling agent in dyeing processes, particularly with reactive and direct dyes. It helps to promote uniform penetration and distribution of the dye molecules onto the fabric fibers, preventing uneven coloration and ensuring consistent shade. It also helps to control the rate of dye uptake, improving the overall quality and efficiency of the dyeing operation. Furthermore, it is used in the production of synthetic fibers.

Sodium Sulphate Anhydrous is also a crucial raw material in the chemical industry itself. It is used in the manufacture of other essential chemicals such as sodium sulfide (Na2S), sodium silicate (water glass), and sulfuric acid (in some processes). Its use as a salting-out agent in certain chemical separation processes is also notable, utilizing its high solubility in water and its ability to reduce the solubility of less soluble compounds.

Other miscellaneous applications include its use in food preservation (though less common for the industrial grade), as an antidote in cases of barium salt poisoning (medical use, but the industrial grade is not for direct medical administration), and in various laboratory applications. Its diverse utility underscores its value as a fundamental industrial chemical.

Quality classifications often categorize Sodium Sulphate Anhydrous based on purity and specific impurity limits, aligning with the requirements of different industries. Higher grades, like Class I or superior products, are designated for applications requiring exceptional purity, such as in certain optical glass or specialized chemical synthesis, while lower grades are suitable for uses where stricter purity is not as critical. Our offerings cater to these varying industrial demands, providing material that meets specified standards for parameters like water-insoluble matter, calcium, magnesium, chloride, and iron content, as well as whiteness and pH.

Packaging of Sodium Sulphate Anhydrous 99% Industrial Grade is typically available in 25kg, 50kg, or 1000kg bags (PP/Paper bags) or can be customized based on specific client needs. Reliable packaging ensures product integrity during storage and transportation. NINGBO INNO PHARMCHEM CO.,LTD. ensures efficient logistics and handling, providing prompt and dependable delivery services to various destinations worldwide.

For businesses seeking a dependable and experienced manufacturer and supplier of high-quality Sodium Sulphate Anhydrous 99% Industrial Grade (CAS 7757-82-6), NINGBO INNO PHARMCHEM CO.,LTD. is ready to assist. We offer competitive price options for bulk quantities and facilitate smooth procurement processes. To buy this essential industrial chemical or inquire about our specifications and logistics, feel free to contact us. We are committed to fostering long-term partnerships by providing not just product, but also reliable service and support for your requirements, whether you need to purchase a small quantity or arrange for a large-scale supply. Understanding the current market price and arranging a convenient delivery plan is part of our comprehensive service.