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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