Seven water magnesium sulfate large particles (99.5%) of the effectiveness of

Seven water magnesium sulfate large particles (99.5%) belongs to orthorhombic system, four bend of diminutive or rhombic crystal, colorless, transparent, accumulated is white, rose or blooming bottle luster. The appearance of acicular, fibrous, diminutive or powder. Odorless, cool, absinthian salty, the about body of 1.67 ~ 1.71. Acrid in water, boring acrid in glycerol, hardly acrid in ethanol, aqueous band-aid was neutral, abiding at 48.1℃in the boiling air, simple weathering in balmy dry air, is college than 48.1 ℃, the accident of 1 clear water, become the six baptize magnesium sulfate, at 67.5 ℃, dissolves in its condensate water, at the aforementioned time the precipitation of magnesium sulfate monohydrate, at 70～ 80 ℃, the accident of 4 baptize of crystallization, the accident of 5 clear baptize of 100℃, the accident of 6 clear baptize in 150℃, lose all of clear baptize in 200 ℃, become the delicate anhydrous magnesium sulfate, aridity altar placed in clammy air in adjustment to reabsorb water. In a saturated band-aid of magnesium sulfate, could be crystallized appropriately with 1, 2, 3, 4, 5, 6, 12 baptize hydrated crystal, -3.9 ~ 1.8 ℃saturated aqueous solution, precipitation of twelve baptize magnesium sulfate, -1.8 ~ 48.18 ℃saturated aqueous solution, precipitation of seven baptize magnesium sulfate, in 48.1 ~ 67.5 ℃saturated aqueous solution, precipitation of six baptize magnesium sulfate, is college than 67.5 ℃precipitation of magnesium sulfate monohydrate.

Seven water magnesium sulfate large particles (99.5%) acclimated for tanning, explosives, papermaking, ceramics, fertilizer, and medical articulate laxatives. Mineral baptize additives. Magnesium sulfate was acclimated in a fertilizer in agriculture, because magnesium is one of the capital apparatus of chlorophyll. Is usually acclimated for abridged plants or crops such as tomatoes, magnesium deficiency, potato, rose. The advantages of magnesium sulfate than added fertilizer is college solubility. Magnesium sulfate is aswell acclimated as a ablution salts. Magnesium sulfate can arrest the axial afraid system, ashen beef relaxation, sedative, anticonvulsant and abate intracranial burden etc.. Commonly acclimated in the analysis of convulsion, eclampsia, uremia, tetanus and hypertensive encephalopathy. With added than 10% magnesium sulfate 10 ml abysmal intramuscular bang or 5% glucose band-aid was adulterated to 2% ~ 2.5% boring drip. But absorption should be paid to absolute intravenous bang or intramuscular bang of ample dosage of magnesium sulfate is dangerous, accepted 25% magnesium sulfate every time up to 15 milliliter. Use should pay absorption to beam the accommodating breath and claret pressure, knee reflex is an important attribute of magnesium ion enough.

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