Industrial anhydrous sodium sulfate (commonly known as sodium sulfate) is an important inorganic chemical raw material, widely used in many industrial fields. The following is a summary of its main uses and specific application scenarios:

1. Papermaking industry

Function: As a cooking agent for kraft pulping, it decomposes lignin to improve the quality of pulp.

Other functions: Adjust the pH value of pulp, enhance the whiteness and strength of paper, and improve the smoothness of paper as a filler or coating component.

2. Glass manufacturing

Flux: Reduce the melting temperature of glass, reduce energy consumption, and improve transparency and strength.

Clarifier: Remove bubbles in molten glass and improve the gloss of finished products.

3. Textile industry

Dyeing and printing: As an auxiliary agent, it enhances the solubility and permeability of dyes, improves dyeing uniformity and fastness.

Post-treatment: Used to remove impurities from textiles and improve the feel and gloss.

4. Chemical production

Raw material use: Manufacture of chemical products such as sodium sulfide and sodium silicate (water glass).
‌Detergent industry‌: As a filler to improve product fluidity and stability and reduce costs.
5. ‌Nonferrous metallurgy‌
‌Fluxing agent‌: Reduce smelting temperature, improve metal recovery rate and purity.
‌Refining agent‌: Optimize production efficiency in processes such as aluminum electrolysis.
6. ‌Leather industry‌
‌Tanning agent‌: React with leather protein to improve softness, durability, and shorten processing time.
7. ‌Other applications‌
‌Feed additive‌: Supplement sulfur and promote animal protein synthesis and metabolism.
‌Laboratory use‌: As a desiccant, chemical reagent or interference inhibitor.
‌Summary‌: Industrial anhydrous sodium sulfate occupies an important position in traditional industries such as papermaking, glass, and textiles due to its chemical stability and versatility. At the same time, driven by environmental protection policies, the market demand for its high-purity products continues to grow. When using, please pay attention to store in a dry environment and avoid direct contact with skin or eyes.