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E504 (Magnesium carbonate), MgCO3 (archaic name magnesia alba), is an inorganic salt that is a colourless or white solid.
Several hydrated and basic forms of E504 (Magnesium carbonate) also exist as minerals.
Mainly used for natural rubber to improve elasticity as keeping its translucency.
E504 (Magnesium carbonate) occurs in nature as the mineral magnesite and is an important source of elemental magnesium.
CAS Number: 13717-00-5
EC Number: 208-915-9
IUPAC Name: magnesium;carbonate
Chemical Formula: MgCO3
Other names: Magnesium carbonate anhydrous, Magmaster, Carbonate magnesium, Caswell No. 530, Stan-mag magnesium carbonate, Magnesium carbonate (MgCO3), DCI light magnesium carbonate, HSDB 211, Magnesiumkarbonat, Magnesium(II) carbonate (1:1), EINECS 208-915-9, NSC 83511, EPA Pesticide Chemical Code 073503, CI 77713, MgCO3, UNII-0IHC698356, CHEBI:31793, AI3-00768, Light magnesium carbonate, Magnesium (as carbonate), Magnesium Carbonate Light, EC 208-915-9, 208-915-9, HEAVY MAGNESIUM CARBONATE, Magnesio carbonato, Magnesium carbonicum 6, Humco Dewees Carminative, USEPA/OPP Pesticide Code: 073503, ccris 6856, hydrated normal magnesium carbonate (mart.), magnesia carbonica, magnesium carbonate (1:1) hydrate, magnesium carbonate (ii), magnesium carbonate (mart.), magnesium carbonate (usp impurity), magnesium carbonate (usp monograph), magnesium carbonate (usp-rs), magnesium carbonate component of renacidin, magnesium carbonate monohydrate, magnesium carbonate, heavy, magnesium carbonate, heavy (ep monograph), magnesium carbonate, light, magnesium carbonate, light (ep monograph), unii-0e53j927na, 546-93-0, Magnesite, 13717-00-5, magnesium;carbonate, Magnesite (Mg(CO3)), Magnesite dust, Carbonic acid, magnesium salt (1:1), Hydromagnesite, Magnesium carbonate (1:1), 7757-69-9, C.I. 77713, Ins no.504(i), MAGNESIUM CARBONATE, LIGHT AR, Anhydrous magnesium carbonate, Ins-504(i), Magnesium carbonate gold star, E-504(i), NSC-83511, 0IHC698356, 53678-75-4, Giobertite, Kimboshi, Apolda, Destab, Magfy, GP 20 (carbonate), MA 70 (carbonate), Gold Star (carbonate), Magnesium carbonate [USAN], Australian magnesite, Magnesium carbonate,light, Magnesium carbonate; Magnesium carbonate light; Hydrated basic magnesium carbonate, EINECS 231-817-2, MFCD00064632, Carbonic acid, magnesium salt (1:?), Magnesium carbonate - heavy, SCHEMBL1183, Carbonic Acid Magnesium Salt, CHEMBL1200736, DTXSID4049660, Magnesium Carbonate Microparticles, CS-B1764, Magnesium, [carbonato(2-)-|EO]-, MAGNESIUM CARBONATE [WHO-DD], AKOS015903527, Magnesium carbonate powder 1-5 micron, DB09481, FM32755, E504, DB-254188, DB-255103, ANHYDROUS MAGNESIUM CARBONATE [MART.], NS00074347, Q407931
E504 (Magnesium carbonate) can be produced artificially by the action of carbon dioxide on a variety of magnesium compounds.
E504 (Magnesium carbonate), Mg CO3 (archaic name magnesia alba), is an inorganic salt that is a white solid.
Several hydrated and basic forms of E504 (Magnesium carbonate) also exist as minerals.
E504 (Magnesium carbonate) consists of white trigonal crystals.
E504 (Magnesium carbonate) is practically insoluble in water, acetone, and ammonia.
All forms of E504 (Magnesium carbonate) react with acids.
E504 (Magnesium carbonate) crystallizes in the calcite structure wherein Mg2+ is surrounded by six oxygen atoms.
The dihydrate has a triclinic structure, while the trihydrate has a monoclinic structure.
References to "light" and "heavy" E504 (Magnesium carbonate)s actually refer to the magnesium hydroxy carbonates hydromagnesite and dypingite.
E504 (Magnesium carbonate) is ordinarily obtained by mining the mineral magnesite.
Seventy percent of the world's supply is mined and prepared in China.
The primary use of E504 (Magnesium carbonate) is the production of magnesium oxide by calcining.
E504 (Magnesium carbonate) and dolomite minerals are used to produce refractory bricks.
E504 (Magnesium carbonate) is also used in flooring, fireproofing, fire extinguishing compositions, cosmetics, dusting powder, and toothpaste.
Other applications are as filler material, smoke suppressant in plastics, a reinforcing agent in neoprene rubber, a drying agent, a laxative to loosen the bowels, and colour retention in foods.
In addition, high purity E504 (Magnesium carbonate) is used as an antacid and as an additive in table salt to keep it free flowing.
E504 (Magnesium carbonate) can do this because it doesn't dissolve in water, only acid, where it will effervesce.
Because of its low solubility in water and hygroscopic properties, MgCO3 was first added to salt in 1911 to make it flow more freely.
E504 (Magnesium carbonate), most often referred to as "chalk", is also used as a drying agent on athletes' hands in rock climbing, gymnastics, weight lifting and other sports in which a firm grip is necessary.
As a food additive, E504 (Magnesium carbonate) is known as E504, for which the only known side effect is that it may work as a laxative in high concentrations.
E504 (Magnesium carbonate) is used in taxidermy for whitening skulls.
E504 (Magnesium carbonate) can be mixed with hydrogen peroxide to create a paste, which is then spread on the skull to give it a white finish.
E504 (Magnesium carbonate) is used as a matte white coating for projection screens.
E504 (Magnesium carbonate) is a magnesium salt with formula CMgO3.
E504 (Magnesium carbonate)s hydrated forms, particularly the di-, tri-, and tetrahydrates occur as minerals.
E504 (Magnesium carbonate) has a role as an antacid and a fertilizer.
E504 (Magnesium carbonate) is a magnesium salt, a carbonate salt and a one-carbon compound.
E504 (Magnesium carbonate), also known as magnesite, is a common over the counter remedy for heartburn and upset stomach caused by overproduction of acid in the stomach.
Magnesite appears as white, yellowish, grayish-white or brown crystalline solid or crystalline powder.
Density: 3-3.1 g cm-3.
An important ore for magnesium.
Used in the manufacture of materials capable of withstanding very high temperatures.
Sometimes used to produce carbon dioxide.
E504 (Magnesium carbonate) is one of many salts of magnesium used clinically.
The carbonate and other salts, such as trisilicate, citrate, oxide and sulfate, are used widely for relief of gastrointestinal symptoms of dyspepsia, heartburn, gastroesophageal reflux disease, and constipation, by acting as antacids and laxatives.
Although the carbonate is only used as an antacid or laxative, some salts may also have other uses as indicated in records for the individual salts.
The sulfate salt, in particular, has many additional medical uses and the reader is referred particularly to the record for magnesium sulfate.
Like several other magnesium salts, the carbonate is rarely given alone and is usually combined with other antacids.
E504 (Magnesium carbonate) has the molecular formula of MgCO3 and the molecular weight of 84.3145 g/mol.
For the most part, Mg2+ forms several hydrated and basic carbonates that are stable and occur in nature.
E504 (Magnesium carbonate) is obtained mainly by mining the natural mineral magnesite.
The trihydrate salt, MgCO3·3H2O, is prepared by mixing solutions of magnesium and carbonate ions in the presence of carbon dioxide.
Basic E504 (Magnesium carbonate) occurs in nature as the mineral, “Hydromagnesite”.
E504 (Magnesium carbonate) is obtained by mining the ore followed by purification.
E504 (Magnesium carbonate)s also can be made by drying the E504 (Magnesium carbonate) trihydrate at about 100 °C.
E504 (Magnesium carbonate) can be prepared by simply boiling a solution of magnesium bicarbonate.
E504 (Magnesium carbonate) is obtained by carbonation of a magnesium hydroxide slurry below 50 °C and under a CO2 partial pressure of 3.5 to 5 atm.
E504 (Magnesium carbonate) is a water insoluble Magnesium source that can easily be converted to other Magnesium compounds, such as the oxide by heating (calcination).
Carbonate compounds also give off carbon dioxide when treated with dilute acids.
E504 (Magnesium carbonate) is generally immediately available in most volumes.
High purity, submicron and nanopowder forms may be considered.
E504 (Magnesium carbonate) occurs in nature in several minerals as hydrated, basic and double salts, as shown above.
The two principal minerals are magnesite, MgCO3 and dolomite, a double salt, CaCO3•MgCO3.
E504 (Magnesium carbonate)s are used as source materials in the production of magnesium metal.
E504 (Magnesium carbonate)s are calcined to produce basic refractory bricks.
Other applications of E504 (Magnesium carbonate) are in flooring, fireproofing and fire-extinguishing compositions; as a filler material and smoke suppressant in plastics; as a reinforcing agent in neoprene rubber; as a drying agent and for color retention in foods; in cosmetics; in dusting powder; and in toothpaste.
The high purity E504 (Magnesium carbonate) is used as an antacid in medicine; and as an additive to table salt.
Another important application of E504 (Magnesium carbonate) is as a starting material in producing a number of magnesium compounds.
E504 (Magnesium carbonate) is obtained mainly by mining its natural mineral magnesite.
E504 (Magnesium carbonate) is prepared by mixing solutions of magnesium and carbonate ions in the presence of carbon dioxide.
Basic E504 (Magnesium carbonate) occurs in nature as the mineral hydromagnesite.
E504 (Magnesium carbonate) is obtained by mining the ore followed by purification.
E504 (Magnesium carbonate)s also can be made by drying the E504 (Magnesium carbonate) trihydrate at about 100°C.
Alternatively E504 (Magnesium carbonate) can be prepared by simply boiling a solution of magnesium bicarbonate.
The bicarbonate is obtained by carbonation of a magnesium hydroxide slurry below 50°C and under a CO2 partial pressure of 3.5 to 5 atm.
The calcite structure of E504 (Magnesium carbonate) has the form wherein Mg2+ is surrounded by six O2- atoms.
The dihydrate composition has a triclinic structure, while the trihydrate has a monoclinic structure.
References to “light” and “heavy” E504 (Magnesium carbonate)s actually refer to the magnesium hydroxycarbonates.
A space-filling structure of the anhydrous salt is seen in the above diagram where the triangular CO3 2- groups are clearly visible.
Light, bulky, white powder. Soluble in acids; very slightly soluble in water; insoluble in alcohol.
Noncombustible.
At room temperature, linolenic acid is a colorless liquid; soluble in most organic solvents; insoluble in water.
Combustible.
E504 (Magnesium carbonate) is a chemical element with symbol Mg and atomic number 12.
E504 (Magnesium carbonate) is a shiny gray solid which bears a close physical resemblance to the other five elements in the second column of the periodic table: all Group 2 elements have the same electron configuration in the outer electron shell and a similar crystal structure.
E504 (Magnesium carbonate) is a gray-white lightweight metal, two-thirds the density of aluminium.
E504 (Magnesium carbonate) tarnishes slightly when exposed to air, although, unlike the other alkaline earth metals, an oxygen-free environment is unnecessary for storage because magnesium is protected by a thin layer of oxide that is fairly impermeable and difficult to remove.
E504 (Magnesium carbonate) has the lowest melting (923 K (1,202 °F)) and the lowest boiling point 1,363 K (1,994 °F) of all the alkaline earth metals.
E504 (Magnesium carbonate) is probably one of the most common metals distributed in nature, constituting about 2.4% of the earth’s crust.
E504 (Magnesium carbonate), however, does not occur in nature in elemental form.
E504 (Magnesium carbonate)s are dolomite [CaMg(CO3)2], magnesite MgCO3; carnallite KCl•MgCl2•6H2O, and silicate materials, such as talc Mg3(Si4O10)(OH)2 and asbestos H4Mg3Si2O9.
E504 (Magnesium carbonate) also is found in seawater, natural underground brines and salt deposits.
E504 (Magnesium carbonate)s concentration in sea water is 1,350 mg/L. Magnesium also occurs in all plants.
E504 (Magnesium carbonate)s porphyrin complex, chlorophyll, is essential for photosynthesis.
E504 (Magnesium carbonate) and its alloys have numerous uses in chemical, electrochemical, metallurgy, and electronic industries.
E504 (Magnesium carbonate)s thermal and electrical properties, lightness, and ease of fabrication into useful shapes make it an attractive choice in industrial applications.
E504 (Magnesium carbonate) is alloyed with aluminum for various structural uses.
E504 (Magnesium carbonate)s alloys with zinc, copper, nickel, lead, zirconium and other metals have many uses too.
E504 (Magnesium carbonate) alloys are used in automobile parts, aircraft, missiles, space vehicles, ship hulls, underground pipelines, memory discs, machine tools, furniture, lawn mowers, ladders, toys, and sporting goods.
E504 (Magnesium carbonate) also is used in making small and lightweight dry cell batteries.
Chemical applications of E504 (Magnesium carbonate) include its use as a reducing agent, to prepare Grignard reagent for organic syntheses, and to purify gases.
E504 (Magnesium carbonate) also is used in blasting compositions, explosive sensitizers, incendiaries, signal flares, and pyrotechnics. Magnesium salts have numerous uses.
They are discussed individually.
E504 (Magnesium carbonate) is a lightweight, silvery-white, malleable alkali earth metal that is flammable.
E504 (Magnesium carbonate) has a weak electronegativity (–1.31), which means E504 (Magnesium carbonate) is highly reactive as it combines withsome nonmetals.
As with other alkali earth metals, E504 (Magnesium carbonate) is a good conductor of heatand electricity.
E504 (Magnesium carbonate)s melting point is 648.8°C, its boiling point is 1090°C, and its density is 1.74 g/cm3, making it about one-fifth the density of iron and only two-thirds as dense asaluminum.
Small particles of powdered magnesium metal burn with a bright white flame that makesthe magnesium ideal for aerial flares dropped from airplanes that will light up ground areas.
E504 (Magnesium carbonate) is has also been used in aerial firebombs during wars to devastate a city by fire because waterwill not extinguish the flames—sand must be used.
In the past decades, E504 (Magnesium carbonate) wireor foil was placed inside glass bulbs containing pure oxygen to form flash bulbs for photographic purposes.
When an electric charge ignites the magnesium, a brilliant light is produced.
Today most flash cameras use a strobe light instead of flash bulbs.
E504 (Magnesium carbonate) is lighter in weight than aluminum and, thus, would make anexcellent construction metal were it not for its high reactivity and flammability at a rather lowtemperature when compared to other metals.
E504 (Magnesium carbonate) is an excellent metal to alloy with other metalsfor use in the aircraft, space, and automobile industries.
E504 (Magnesium carbonate) is used for the production (thermal reduction) of other metals, such as zinc, iron, titanium, zirconium, and nickel.
For instance, because of its strong electropositive nature, magnesium can “desulfurize” molten iron when it combines with the sulfur impurities in the ironto produce high-grade metallic iron plus MgS.
E504 (Magnesium carbonate) is an alkaline (basic) water suspension and “creamy-like” suspended formof magnesium hydroxide, Mg(OH)2.
E504 (Magnesium carbonate) is used in the manufacture of fireworks and marine flares where a brilliant white light is required.
Flame temperatures of E504 (Magnesium carbonate) and magnesium alloys can reach 1371°C (2500 F), although flame height above the burning metal is usually less than 300 mm (12 in).
E504 (Magnesium carbonate) may be used as an ignition source for “thermite”, or otherwise difficult to ignite mixture of aluminum and iron oxide powder.
E504 (Magnesium carbonate)s are typically white crystals.
Most are soluble in water, providing the sour-tasting E504 (Magnesium carbonate) ion, Mg2+.
Small amounts of dissolved magnesium ion contribute to the tartness and taste of natural waters.
E504 (Magnesium carbonate) ion in large amounts is an ionic laxative, and magnesium sulfate is sometimes used for this purpose.
Socalled E504 (Magnesium carbonate) is a water suspension of one of the few insoluble magnesium compounds, Mg(OH)2.
The undissolved particles give rise to its appearance and name.
E504 (Magnesium carbonate) is a mild base commonly used as an antacid.
Commercially, the chief use for E504 (Magnesium carbonate) is as an alloying agent to make Al Mg alloys, sometimes called magnalium or magnelium.
E504 (Magnesium carbonate) is less dense than aluminum, these alloys are valued for their relative lightness and strength.
E504 (Magnesium carbonate) is an important element for plant and animal life.
The adult human daily requirement of E504 (Magnesium carbonate) is about 0.3 g/day.
E504 (Magnesium carbonate) is the 11th most abundant element by mass in the human body.
E504 (Magnesium carbonate)s ions are essential to all living cells, where they play a major role in manipulating important biological polyphosphate compounds like ATP, DNA and RNA.
Hundreds of enzymes thus require magnesium ions in order to function.
E504 (Magnesium carbonate), being the metallic ion at the center of chlorophyll, is thus a common additive to fertilizers.
E504 (Magnesium carbonate)s are used medicinally as common laxatives, antacids, and in a number of situations where stabilization of abnormal nerve excitation and blood vessel spasm is required.
E504 (Magnesium carbonate)s are sour to the taste, and in low concentrations help to impart a natural tartness to fresh mineral waters.
E504 (Magnesium carbonate) is mined from its naturally occurring mineral rhodochrosite.
E504 (Magnesium carbonate) may be prepared in the laboratory as a palepink precipitate by adding sodium bicarbonate to a solution of manganese(II) salt saturated with carbon dioxide.
E504 (Magnesium carbonate) obtained is monohydrate, MnCO3•H2O.
However, if the carbon dioxide-saturated solution, together with the above monohydrate precipitate, is heated in the absence of atmosphere oxygen, the monohydrate MnCO3•H2O is converted into the anhydrous MnCO3.
USES:
E504 (Magnesium carbonate) is an anticaking agent and general purpose food additive.
E504 (Magnesium carbonate) is practically insoluble in water but is more soluble in water containing carbon dioxide.
E504 (Magnesium carbonate) imparts a slightly alkaline reaction to the water.
E504 (Magnesium carbonate) is used as an alkali in sour cream, butter, and canned peas.
E504 (Magnesium carbonate) is used as an anticaking agent in table salt and dry mixes.
E504 (Magnesium carbonate) assists in providing clarity in algin gels and functions as a filler in dental impression materials.
E504 (Magnesium carbonate)s, heat insulation and refractory, rubber reinforcing agent, inks, glass, pharmaceuticals, dentifrice and cosmetics, free-running table salts, antacid, making magnesium citrate, filtering medium.
In foods as drying agent, color retention agent, anticaking agent, carrier.
E504 (Magnesium carbonate) (MgCO3) is found in a mixture of natural minerals.
E504 (Magnesium carbonate) can also be produced in several ways, including pumping carbon dioxide through magnesium oxide or magnesium hydroxide.
E504 (Magnesium carbonate) is used in pharmaceuticals such as magnesium citrate and as a desiccant to keep hydroscopic products from caking and to strengthen rubber and produce dyes, inks, and cosmetics.
CHEMICAL PROPERTIES:
E504 (Magnesium carbonate) is a light, bulky white powder, very slightly soluble in water,loses CO2 even on gentle heating.
E504 (Magnesium carbonate) is used extensively in the manufacture of food products, pharmaceuticals, cosmetics, and magnesium salts.
