magnesium silicate


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magnesium

 (Mg) [mag-ne´ze-um]
a chemical element, atomic number 12, atomic weight 24.312. (See Appendix 6.) Its salts are essential in nutrition, being required for the activity of many enzymes, especially those concerned with oxidative phosphorylation. It is found in the intra- and extracellular fluids and is excreted in urine and feces. The normal serum level is approximately 2 mEq/L. Magnesium deficiency causes irritability of the nervous system with tetany, vasodilation, convulsions, tremors, depression, and psychotic behavior.
Homeostasis of magnesium in extracellular fluids. The normal serum magnesium level is regulated by intestinal and renal function. Most of the body's magnesium is stored in bones, muscle, and soft tissue. From Malarkey and McMorrow, 2000.
magnesium carbonate an antacid.
magnesium chloride an electrolyte replenisher and a pharmaceutic necessity for hemodialysis and peritoneal dialysis fluids.
magnesium citrate a saline laxative used for bowel evacuation before diagnostic procedures or surgery of the colon; administered orally.
magnesium hydroxide an antacid and cathartic.
magnesium oxide an antacid and a sorbent in pharmaceutical preparations; called also magnesia.
magnesium salicylate see salicylate.
magnesium silicate MgSiO3, a silicate salt of magnesium; the most common hydrated forms found in nature are asbestos and talc.
magnesium sulfate Epsom salt; an anticonvulsant and electrolyte replenisher, also used as a laxative and local antiinflammatory.
magnesium trisilicate a combination of magnesium oxide and silicon dioxide with varying proportions of water; used as a gastric antacid.

magnesium silicate

MgSiO3, a silicate salt of magnesium. The most common hydrated forms found in nature are asbestos and talc.

magnesium

a chemical element, atomic number 12, atomic weight 24.312, symbol Mg. See Table 6. Its salts are essential in nutrition, being required for the activity of many enzymes, especially those concerned with oxidative phosphorylation. It is found in the intra- and extracellular fluids and is excreted in urine and feces.

magnesium ammonium phosphate (MAP)
a common constituent of urinary calculi. See urolithiasis.
blood magnesium
level of magnesium in the blood.
magnesium carbonate, magnesium hydroxide, magnesium oxide, magnesium phosphate, magnesium trisilicate
compounds used as antacids.
magnesium chloride
used as a source of magnesium in the treatment of hypomagnesemia in cattle, and as a chemical defibrillator in cardiopulmonary resuscitation.
magnesium citrate
a mild cathartic.
magnesium gluconate
a magnesium replenisher.
magnesium nutritional deficiency
is most important in the part that it plays in lactation tetany in ruminants. It also causes deformities of the limbs and nervous signs of tremor and convulsions in pigs. See also lactation tetany (1).
magnesium salicylate
the magnesium salt of salicylic acid used as an antiarthritic.
magnesium silicate
talcum powder; capable of causing starch granulomatous peritonitis if introduced into the peritoneal cavity, so it has been superseded by other compounds for use on surgeon's gloves.
magnesium sulfate
Epsom salts; used as an electrolyte replenisher, cathartic and local anti-inflammatory.
magnesium sulfate-chloral hydrate mixture
see chloral hydrate and magnesium sulfate.
References in periodicals archive ?
Statistical analysis revealed that the two magnesium silicate groups achieved similar tear strength rates, whereas that obtained for the MS-20 group was significantly statistically higher than that obtained for the CG group.
Consequently, after treatment, slag will contain magnesium silicates rich in iron oxide, which will increase its aggressive tendency.
The degree of orientation of the b-axis can be increased by increasing the talc content, decreasing the particle size of talc, or by using pure talc, which contains only magnesium silicate hydroxide.
Magnesium silicate perovskite was discoveredabout 10 years ago by L.
There are more than enough magnesium silicate rocks in ophiolite belts and in asbestos mine waste in Canada to store Canada's C[O.
magnesious (OED) in 1812 quote at meerschaum, a magnesium silicate
But it's in line with some predictions that the atmospheres of "hot Jupiters" should be darkened by clouds of magnesium silicate dust or perhaps liquid-iron mist, which should be very black at visible wavelengths.
The 10 were caught in a cave-in after they descended into the pit on July 17 in a failed attempt to find Mr Hainzl, aged 24, trapped by a smaller collapse in the magnesium silicate mine a few hours before.
Never use those peroxides which contain filler, such as calcium carbonate or magnesium silicate, or transparency will be lost.
Headquartered in Whitehouse, NJ, The Dallas Group is the world's premier producer of absorbent synthetic magnesium silicate marketed under the trademark MAGNESOL([R]).
It is comprised of a photocatalyst mixture containing titanium dioxide, sodium perborate, magnesium silicate and citric acid; a pharmaceutically acceptable carrier; and a pH range from 4-6.