Sodium sulfate decahydrate (glauber's salt, Glauber salt)

 Glauber's salt, the name of Chinese medicine. It is a crystal of the sulfate mineral Glauber's salt family Glauber's salt after processing and refining. Mainly contains water-containing sodium sulfate (Na2SO4·10H2O). It is distributed in most parts of the country. It has the effects of purging and laxative, moisturizing dryness and softening, clearing fire and reducing swelling. It is often used for the treatment of stagnation of excess heat, fullness and pain of abdomen, dry stool, swelling and pain of intestinal carbuncle, etc.; external treatment of breast carbuncle, hemorrhoids, swelling and pain.