硫酸镁是历史悠久的老药,俗称泻盐,又称硫苦。自然界中有苦盐和硫酸镁石,可用热水提取,浓缩及放冷后即析出硫酸镁,再经重结晶即可得药用品。我国辽宁省盛产菱镁石,使之与硫酸作用亦可制得硫酸镁。本品为无色细小的针状结晶或斜方形柱状结晶,无臭,味咸凉而苦。本品易溶于水(1:1)。 Magnesium sulfate is a long history of old drugs, commonly known as Epsom salt, also known as sulfur bitter. There are bitter salts and brucite in nature can be extracted with hot water, concentrated and let cool after the precipitation of magnesium sulfate, and then by recrystallization can be medicine. Liaoning Province, China is rich in magnesite, so that the role of sulfuric acid can also be obtained magnesium sulfate. This product is colorless and small needle-shaped crystals or oblique square columnar crystals, odorless, taste salty and bitter. This product is soluble in water (1: 1).