Potassii Sulphas. Potassium Sulphate. K2So4= 173.88. Source. - Add Potassium Carbonate to Acid Potassium Sulphate, which is a bye-product of the manufacture of Nitric Acid. K2Co3+ 2Khs04 = 2K2S04+Co2+H2O.

Characters

Hard, colorless, transparent, six-sided, rhombic prisms terminated by pyramids, or a white powder, odorless, and having a somewhat bitter, saline taste. Solubility. - In 9.5 parts of water; insoluble in Alcohol.

Impurities

Sodium, arsenic, lead, copper, zinc, iron, aluminum, calcium, magnesia and chlorides.

Dose, 1/2 to 4 dr.; 2. to 15. gm.