magnesium silicate


Also found in: Dictionary, Thesaurus, Encyclopedia.
Related to magnesium silicate: Magnesium stearate, Calcium silicate, Magnesium Aluminum Silicate

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 ?
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.
Some of the food additives used as anti caking agents and permitted in the Europe are silicon dioxide, calcium silicate, magnesium silicate, Sodium gluconate, Calcium gluconate, Glucono delta-lactone among others.
00 Clay) (Sodium magnesium silicate and tetrasodium pyrophosphate) Phase D Solid pigment or pigment dispersion 4.
This finding was present in responders with extensive interstitial/parenchymal abnormalities (three of four patients) and in one of two patients with small airway disease, but not in the patient with nonnecrotizing granulomas, b) We found a higher amount of aluminum silicate and magnesium silicate in all four patients with diffuse interstitial/parenchymal abnormalities compared with those with small airway disease and granuloma.
Last year, another Harvard team found talc - made from a mineral called hydrous magnesium silicate - raised the risk of ovarian cancer by 41% and urged women not to use it.
No carbon emissions are released from the magnesium silicate raw material used, and overall more CO2 is absorbed than emitted during production.
B) Granular source: calcium and magnesium silicate were applied at the sowing time together with the fertilizer at the following doses: 0.
The pipe pictured here, for which you might need your tampers, is made of carved meerschaum - a word that translates literally as 'sea foam', although the mineral concerned is actually a magnesium silicate called sepiolite.
However, mine waste rock that is rich in the mineral magnesium silicate has an inherent ability to react with CO2 and chemically "fix" it in place as magnesium carbonate-an ability that can be greatly enhanced with some processing.
By studying thin slices of the gabbros under polarizing microscopes, the scientists identified substantial amounts of the mineral orthopyroxene, a magnesium silicate that was thought to be absent from the lower crust.