Magnesium Sulfate

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magnesium sulfate

[mag′nē·zē·əm ′səl‚fāt]
(inorganic chemistry)
MgSO4 Colorless crystals with a bitter, saline taste; soluble in glycerol; used in fireproofing, textile processes, ceramics, cosmetics, and fertilizers.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Magnesium Sulfate


MgSO4, a salt; colorless crystals. Density, 2.66 g/cm3. Decomposes into MgO, SO2, and O2 at 1100°-1200°C.

Solubility in water, 25.2 percent (by weight) at 20°C. It forms crystalline hydrates with one, two, three, four, five, six, seven, and 12 water molecules; the crystallization of MgSO4.7H2O from aqueous solutions takes place at room temperature. Magnesium sulfate occurs naturally as kieserite, MgSO4.H2O, and epsomite MgSO4«7H2O (Epsom salt). It interacts with salts of alkali metals to form double salts, among them langbeinite, K2SO4.2MgSO4; astrakanite, Na2SO4.MgSO4.4H2O; polyhalite, K2SO4.MgSO4.2CaSO4.2H2O; and kainite, KCL MgSO4.3H2O (all of which occur in nature).

Magnesium sulfate is extracted from natural ocean brines and solid salt deposits. It is used to prepare SO2 in the production of H2SO4, and also in the manufacture of magnesia cement, in the textile industry as a filler and mordant, in the paper industry as a filler, and in agriculture.

In medicine, magnesium sulfate serves as a tranquilizer, antispasmodic, laxative, and cholagogue. It is available in prepared solution (for intramuscular or intravenous injection) or in powder form.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
Then after starting and up to 40 mins of pneumoperitoneum SBP was significantly lower with dexmedetomidine than with magnesium sulphate and control groups (p value < 0.05).
Basar, "Postoperative magnesium sulphate infusion reduces analgesic requirements in spinal anaesthesia," European Journal of Anesthesiology, vol.
Masoomi, "Adding magnesium sulphate to lidocaine for intravenous regional anesthesia," Regional Anesthesia and Pain Medicine, vol.
The highest number of fruits was recorded in T1 and T9 which was Magnesium sulphate at the concentration 0.05% and Calcium chloride at the concentration 0.05% respectively were highly significant.
Exclusion criteria included any trials that were retrospective or observational or studies on epidural or intrathecal use of magnesium sulphate.
Keywords: Corticosteroid, dexamethasone, testicular injury, seminiferous tubules, magnesium sulphate. (JPMA 66: 1407; 2016)
Controlled hypotension for middle ear surgery: a comparison between remifentanil and magnesium sulphate. Br J Anaesth.
In fresh Type-I and Type-II prolapses, mucosal oedema and irritation can be reduced by topical application of glycerine, sugar or magnesium sulphate and lignocaine jelly or lignocaine enema with 12 ml of 2% Lignocaine in 50 ml of water (Rick, 1989).
Thirty seven were given high dose of Magnesium Sulphate (study group) and 34 were given low dose of magnesium sulphate (control group) through intravenous route along with other supportive measures.
Since the publication of the collaborative multicentre study on eclampsia in 1995, magnesium sulphate has remained the most ideal anticonvulsant drug for the treatment of eclampsia, with a maternal death rate of 4% (11,12).
Epsom salt is magnesium sulphate so is only required if the camellia is showing signs of magnesium deficiency - yellowing between the veins of the leaf.