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15.09.2013
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The easiest way to lookup drug information, identify pills, check interactions and set up your own personal medication records. Magnesium hydroxide is an inorganic compound with the chemical formula of hydrated Mg(OH)2.
In 1829, Sir James Murray used a fluid magnesia preparation of his own design[6] to treat the Lord Lieutenant of Ireland, the Marquis of Anglesey, of stomach pain. Natural magnesium hydroxide exists in the form of brucite, which is used commercially as a fire retardant. Suspensions of magnesium hydroxide in water are used as an antacid to neutralize stomach acid, and as a laxative.
Magnesium hydroxide is sold for medical use as chewable tablets, capsules, and as liquids having various added flavors.
Magnesium hydroxide powder is used industrially as a non-hazardous alkali to neutralize acidic wastewaters.[16] It also takes part in the Biorock method of building artificial reefs. The heat absorbed by the reaction acts as a retardant by delaying ignition of the associated substance.
Only a small amount of the magnesium from magnesium hydroxide is usually absorbed by the intestine (unless they are deficient in magnesium).
Brucite, in which some of the Mg2+ cations have been substituted by Al3+ cations, becomes positively charged and constitutes the main basis of layered double hydroxide (LDH).
For the same reason, dolostone cannot be used as construction aggregate for making concrete. This reaction, one of the two main alkali-aggregate reaction (AAR) is also known as alkali-carbonate reaction. Content in this section is authored by an open community of volunteers and is not produced by, reviewed by, or in any way affiliated with MedLibrary.org. Finding More You are currently browsing the the MedLibrary.org general encyclopedia supplement. This site is provided for educational and informational purposes only, in accordance with our Terms of Use, and is not intended as a substitute for the advice of a medical doctor, nurse, nurse practitioner or other qualified health professional.
Today, we have firmly positioned ourselves as one of the chief Manufacturers of Magnesium Hydroxide Powder. Disclaimer: Every effort has been made to ensure that the information provided here is accurate, up-to-date and complete, but no guarantee is made to that effect. Uses: A minor source of metallic magnesium, a source of magnesia and as a refractory additive. Brucite is a mineral that is not often used as a mineral specimen but does have some important industrial uses.


The octahedrons are composed of magnesium ions with a +2 charge bonded to six octahedrally coordinated hydroxides with a -1 charge. The lack of a charge on the brucite sheets means that there is no charge to retain ions between the sheets and act as a "glue" to keep the sheets together.
The sheets are only held together by weak residual bonds and this results in a very soft easily cleaved mineral. Brucite is interesting for another reason because it is often found as a part of the structure of other minerals.
The individual magnesium hydroxide layers are identical to the individual layers of brucite and are referred to as the "brucite layers". Crystal Habit is typically in flattened tabular crystals with rare rhombohedral terminations.
Best Field Indicators are crystal habit, luster (especially on cleavage surfaces), lack of soapy or greasy feel and flexible but inelastic flakes and fibers.
This material is provided for educational purposes only and is not intended for medical advice, diagnosis or treatment. It is often known as milk of magnesia, because of its milk-like appearance as a suspension.
This was so successful (advertised in Australia and approved by the Royal College of Surgeons in 1838)[7] that he was appointed resident physician to Anglesey and two subsequent Lords Lieutenants, and knighted.
Due to the availability of alkaline hydroxide salts, this is commonly between magnesium salts and sodium, potassium, or ammonium hydroxide, but this may happen in any basic environment where the hydroxide species is present.
However, most industrially used magnesium hydroxide is chemically produced from sea water or brine.
It is primarily used to alleviate constipation, but also to relieve indigestion and heartburn. The water released dilutes any combustible gases and inhibits oxygen from aiding the combustion. First, Mg2+ is poorly absorbed from the intestinal tract, so it draws water from the surrounding tissue by osmosis. However, magnesium is mainly excreted by the kidneys so long-term, daily consumption of milk of magnesia by someone suffering from renal failure could lead in theory to hypermagnesemia. As a consequence, chlorite interlayers are cemented by brucite and cannot swell nor shrink anymore.
LDH minerals as hydrotalcite are powerful anion sorbents but are relatively rare in nature. Indeed, the Mg2+ cation is the second most abundant cation in seawater, just behind Na+ and before Ca2+. The reaction of magnesium carbonate with the free alkali hydroxides present in the cement porewater also leads to the formation of expansive brucite. To return to our medication library, please select from the menu above or use our search box at the top of the page.


Magnesium Hydroxide Crystals are widely used as an antacid in many antacid formulations and as intermediate for obtaining magnesium metal, residual fuel oil additive, sulfite pulp, uranium processing, dentifrices, in food as alkali, drying agent, color retention agent & frozen desserts. Also used as intermediate for obtaining magnesium metal, residual fuel oil additive, sulfite pulp, uranium processing, dentifrices, in food as alkali, drying agent, color retention agent, frozen desserts. This information has been compiled for use by healthcare practitioners and consumers in the United States. While magnesium hydroxide has a low solubility in water, with a Ksp of 1.5?10?11, it is large enough that it will partially dissolve to produce ions in the solution, forming the suspension.
When taken orally as a laxative, the osmotic force of the magnesia suspension acts to draw fluids from the body and to retain those already within the lumen of the intestine, serving to distend the bowel, thus stimulating nerves within the colon wall, inducing peristalsis and resulting in evacuation of colonic contents. Common uses of magnesium hydroxide as a fire retardant include plastics, roofing, and coatings.
Not only does this increase in water content soften the feces, it also increases the volume of feces in the intestine (intraluminal volume) which naturally stimulates intestinal motility. Because brucite is a swelling mineral, it causes a local volumetric expansion responsible for tensile stress in concrete. In addition to our search facility, alphabetical listings and a date list can help you find every medication in our library. Besides this, it is also used in Effluent Treatment Plants, especially where the effluents are very much alkaline in nature.
Also widely used in Effluent Treatment Plant especially where the Effluents is very much alkaline in nature. The absence of a warning for a given drug or combination thereof in no way should be construed to indicate that the drug or combination is safe, effective or appropriate for any given patient. A relatively high concentration of magnesium or hydroxide ions would be required to revert the suspension to the solid precipitate by reversing the equilibrium. It is also used as an antacid, though more modern formulations such as Maalox combine the antimotility effects of equal concentrations of aluminum hydroxide to avoid unwanted laxative effects.
Furthermore, Mg2+ ions cause the release of cholecystokinin (CCK), which results in intraluminal accumulation of water, electrolytes, and increased intestinal motility. This leads to the formation of cracks and fissures in concrete, accelerating its degradation in seawater. If you have questions about the substances you are taking, check with your doctor, nurse or pharmacist. If you have a question or comment about material specifically within the site’s encyclopedia supplement, we encourage you to read and follow the original source URL given near the bottom of each article. Extensively used in various industries for several applications, our Magnesium Hydroxide is in huge demand for brilliant chemical as well as physical properties.



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