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Magnesium toxicity

Magnesium in Metallurgy
What is magnesium?
Physical characteristics
  • magnesium atomic structure
  • magnesium notable features
  • mg isotopes and isolation
  • magnesium compounds
  • magnesium advantages
Magnesium history
  • magnesium sources
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Use of magnesium nowadays
Magnesium alloys
  • number of magnesium alloys
  • alloying components
Metallurgy and engineering
  • magnesium
  • magnesium and metallurgy
Magnesium applications
  • magnesium toxicity
  • magnesium safety
  • magnesium in automotive
  • magnesium in aerospace
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Articles & Magnesium News
FAQ

Low toxicity of magnesium and magnesium compounds gives them high possibilities. No reports of serious poisoning in industry have appeared in literature. No unusual health hazard has been found associated with the handling, mechanical finishing, or pickling of magnesium alloys, including those containing thorium or beryllium. No evidence is available that inhalation of magnesium dust can cause lung damage. However, fine magnesium dust is generated in the printing trade, and complaints have been made about discolored sputum. The acute oral toxicity of magnesium compounds in animals is low, too. In spite of that oral intake can reduce kidney function. You can find any problem by toxic symptoms like blood pressure and respiratory paralysis, disturbs the cofactor for enzymes, problems with central nervous system and others.
Toxic response includes general anesthesia and narcosis. Intravenous administration of calcium neutralizes the reaction. In the cardiovascular system, some of the effects of excess magnesium are similar to those of potassium. Magnesium has a direct depressant effect on skeletal muscle.
Normal adult dietary intake is 300-400 mg/day. Drastic reduction of dietary intake of magnesium is needed to induce a negative balance because of extremely effective renal retention and increasing intestinal absorption. The effect of magnesium (as well as of zinc) supplementation and depletion on carcinogenesis has been reviewed comprehensively. Magnesium supplementation tends to inhibit carcinogenesis, and magnesium deficiency increases the incidence of neoplasia in humans and animals. Fatal intoxication of magnesium sulfate and magnesium hydroxide (milk of magnesia) can occur with very high dietary levels (15,000-25,000 p pm) or under circumstances that increase magnesium absorption.
Particles of metallic magnesium that perforate the skin or gain entry through cuts and scratches may produce a severe local lesion characterized by evolution of gas and an acute inflammatory reaction, frequently with necrosis (chemical gas gangrene). Today the most serious hazard presented by magnesium is the danger of burns from molten metal.

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What is magnesium?

Green vegetables such as spinach provide magnesium because the center of the chlorophyll molecule contains magnesium. Nuts (especially cashews and almonds), seeds, and some whole grains are also good sources of magnesium.

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Notable features

Magnesium is a fairly strong, silvery-white, light-weight metal. It is protected by a thin layer of oxide which is fairly impermeable and hard to remove. Magnesium reacts with water at room temperature, though it reacts much more slowly (for example) than calcium.

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