Identification & Quality Standard
Natrii Sulfas
Botanical Origin
The refined crystals made from mirabilite, primarily consisting of Na2SO4•10H2O.
Production Regions
Produced in most areas of China.
Quality Requirements
Superior medicinal material has crystal lumps, colorless translucent color.
Macroscopic Features
Single crystal system, crystal is short cylindrical or needle-like; often in dense lumps or fiber-like clusters. Colorless or white, glass-like and lustrous, intact surface cleavage, 1.5~2 mohs hardness, density 1.48. Tastes clear and cool, slightly bitter and salty, very easily becomes liquid after absorbing moisture; in dry air, it gradually loses water to become anhydrous mang xiao. Ridged-cylindrical, rectangular or irregular lumps and granules. Colorless translucent or off-white translucent. Brittle texture, easily crushed, fractured surface is spotted and lustrous. faint odor, salty taste.
