[English name] magnesium sulfate; Epson salt
[structure or molecular formula]
MgSO 4 ·7H 2 O
[relative molecular weight or atomic weight] 246.48
[density] 1.68 (20 ° C seven water), 2.66 (20 ° C anhydrate)
[melting point (°C)] 1124 (anhydrous)
ã€Properties】
Colorless or white weathering crystal or powder, odorless, bitter and salty.
ã€Solubility】
Soluble in water, glycerin and ethanol.
ã€use】
It is used as a laxative in medicine. It can increase the intestinal osmotic pressure, so that the intestine contains a large amount of water, and the volume is increased, thereby stimulating the intestinal mucosa and promoting catharsis. For constipation, intestinal toxic elimination and use with anthelmintic drugs. And used for cholelithiasis. Also used in tanning, explosives, fertilizers, paper, pottery, printing and dyeing industries.
[preparation or source]
It is naturally produced. By acting on magnesium sulfate, oxide, magnesium hydroxide or magnesium carbonate prepared.
ã€other】
Six molecules of crystal water were lost at 150 ° C, and all crystal water was lost at 200 ° C.
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