Sulphate of soda, a well-known cathartic. It is a white crystalline substance, with a cooling, slightly bitter taste, and is commonly called "salts."
Glauber's salt is sodium sulfate decahydrate (Na2SO4×10H2O). Loses water of hydration at 100 °C. Energy storage capacity is more than seven times that of water.
A salt, sodium sulfate decahydrate, that melts at 90 degrees Fahrenheit; a component of eutectic salts that can be used for storing heat.