Yuanming powder (anhydrous sodium sulfate) 
Chemical name: Anhydrous Sodium Sulfate 
Molecular formula: \ (\ boldsymbol {Na_2SO4} \), molecular weight: 142.06, CAS: 7757-82-6, HS code: 2833110000 
Alias: Anhydrous Glauber's salt; Sodium sulfate decahydrate is called saltpeter, and anhydrous high-purity powder is called sodium sulfate powder; It is the basic filling material in your AEO-9, lightweight soda ash, and STPP laundry detergent formula 
Physical and chemical indicators (industrial first-class products) 
-Appearance: White crystalline powder/granules, odorless 
-Main content \ (\ boldsymbol {Na_2SO4} \) ≥ 99.0% 
-Water insoluble matter ≤ 0.05% 
-PH (50g/L aqueous solution): 5.2-8.0, close to neutral 
-Bulk density: 1.4-1.6 g/cm ³ 
-Solubility: easily soluble in water; Insoluble in ethanol; Has hygroscopicity, and in humid environments, it will absorb water and form lumps 
-Melting point: 884 ℃, good thermal stability 
>Function in laundry detergent formula: 
> 1. Fillers: Reduce formulation costs and increase powder volume 
> 2. Assistant molding: improve the fluidity of powder, facilitate spray drying and granulation, and prevent powder caking 
>3. Salt precipitation enhances efficiency: increases the concentration of surfactant (AEO-9, LAS) micelles to assist in improving cleaning power 
> 4. No chelating ability for hard water, does not have the washing aid function of soda ash and STPP, mainly used as a filler 
main purpose 
1. Synthetic detergent (maximum use) 
Washing powder, powdered industrial cleaning agent filled with main ingredients, and classic compound of AEO-9, light soda ash, and sodium tripolyphosphate. 
2. Textile printing and dyeing 
Direct dyes, reactive dyes, dyeing promoters, and leveling agents; Reduce the fluctuation of dye affinity for fabrics. 
3. Glass industry 
Glass flux reduces melting temperature and eliminates bubbles. 
4. Paper industry 
Sulfate pulp cooking aids. 
5. Chemical raw materials 
Prepare sodium sulfide, water glass (sodium silicate), etc. 
6. Other 
Vinylon spinning coagulant, leather processing, metallurgy, laboratory desiccant, feed additive.