A crystalline hydrated form of sodium sulfate, used chiefly as a laxative.
- ‘Having experienced a mild diarrheal illness for several days, he had attempted to cure himself of this ailment that morning with a dose of Glauber's salts (sodium sulfate, similar to Epsom's salt), a laxative.’
- ‘Epsom salt (magnesium sulfate heptahydrate MgSO 4 7H 2 O) and Glauber's salt (sodium sulfate decahydrate Na 2 SO 4 10H 2 O) are examples of hydrates.’
- ‘Such systems are now used only for certain specialized applications such as the production of Glauber's salt for synthetic sponges, or for very small-scale operations, or in primitive areas where the cost of labor is extremely low.’
- ‘This includes various seaweeds such as kelp or dulse, certain mineral salts such as sodium sulfate (Glauber's salts) and certain plants.’
- ‘Some are remembered by association with useful substances, like Fehling's solution, or Glauber's salt.’
Mid 18th century: named after Johann R. Glauber (1604–1668), the German chemist who first produced the substance artificially.