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Magnesium carbonate

Chemical Properties Occurrence and Uses Preparation
Magnesium carbonate
Magnesium carbonate structure
CAS No.
13717-00-5
Chemical Name:
Magnesium carbonate
Synonyms
MAGNESITE;giobertite;heavycp2000;MAGGRAN(R) MC;MAGNESIA 81811;MAGNESIA 81010;Magnesite dust;MAGGRAN(R) MCPLUS;MAGNESIUM CARBONATE;Magnesite (Mg(CO3))
CBNumber:
CB3146620
Molecular Formula:
CMgO3
Formula Weight:
84.31
MOL File:
13717-00-5.mol

Magnesium carbonate Properties

Melting point:
2200 °C
Density 
3.001 g/cm3
Solubility Product Constant (Ksp)
pKsp: 5.17
FDA 21 CFR
184.1425; 582.1425; 177.2600; 331.11
CAS DataBase Reference
13717-00-5(CAS DataBase Reference)
EWG's Food Scores
1
FDA UNII
0E53J927NA
EPA Substance Registry System
Magnesite (13717-00-5)

Magnesium carbonate price

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich PHR1328 Magnesium carbonate Pharmaceutical Secondary Standard; Certified Reference Material 13717-00-5 5 g $36.7 2021-03-22 Buy
Sigma-Aldrich M7179 Magnesium carbonate meets USP testing specifications 13717-00-5 500 g $167 2021-03-22 Buy
Sigma-Aldrich M7179 Magnesium carbonate meets USP testing specifications 13717-00-5 1 kg $304 2021-03-22 Buy
Sigma-Aldrich 1374226 Magnesium carbonate United States Pharmacopeia (USP) Reference Standard 13717-00-5 2 g $350 2021-03-22 Buy

Magnesium carbonate Chemical Properties,Uses,Production

Chemical Properties

Magnesium carbonate, MgC03, is a light, bulky white powder, very slightly soluble in water,loses CO2 even on gentle heating. It is used extensively in the manufacture of food products, pharmaceuticals, cosmetics, and magnesium salts.

Occurrence and Uses

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. Both minerals are used as source materials in the production of magnesium metal. Also, they are calcined to produce basic refractory bricks. Other applications of 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 magnesium carbonate is used as an antacid in medicine; and as an additive to table salt. Another important application of magnesium carbonate is as a starting material in producing a number of magnesium compounds.

Preparation

Magnesium carbonate is obtained mainly by mining its natural mineral magnesite. The trihydrate salt, MgCO3•3H2O, is prepared by mixing solutions of magnesium and carbonate ions in the presence of carbon dioxide. Alternatively, it may be produced by carbonation of a magnesium hydroxide slurry with carbon dioxide under pressure (3.5 to 5 atm) and at a temperature below 50°C which yields soluble magnesium bicarbonate:
Mg(OH)2 + 2CO2 → Mg(HCO3)2
The solution is filtered to remove impurities and the filtrate is subjected to vacuum or aeration to yield insoluble magnesium carbonate as a hydrated salt:
Mg2 + 2HCO3¯ → MgCO3 + CO2 + H2O
Under ordinary conditions, anhydrous magnesium carbonate cannot be prepared in aqueous systems. The anhydrous salt, however, can be made under very high partial pressures of carbon dioxide.
Basic magnesium carbonate occurs in nature as the mineral hydromagnesite. The basic salt is obtained by mining the ore followed by purification. The basic carbonates also can be made by drying the magnesium carbonate trihydrate at about 100°C. Alternatively it 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. Composition of the basic carbonate produced by the above methods is 4MgCO3 •Mg(OH)2•4H2O.
Another basic salt, MgCO3•Mg(OH)3•3H2O is precipitated when magnesium salt solution is treated with sodium carbonate solution. The reactions probably are:
CO32– + H2O → HCO3¯ + OH¯
2Mg2+ + CO32– + 2OH¯ → MgCO3•Mg(OH)2

Description

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.
The calcite structure of 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” magnesium carbonates 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.

Chemical Properties

Light, bulky, white powder. Soluble in acids; very slightly soluble in water; insoluble in alcohol. Noncombustible.

Chemical Properties

At room temperature, linolenic acid is a colorless liquid; soluble in most organic solvents; insoluble in water. Combustible.

Uses

Magnesium Carbonate is an anticaking agent and general purpose food additive. it is practically insoluble in water but is more soluble in water containing carbon dioxide. it imparts a slightly alkaline reaction to the water. it is used as an alkali in sour cream, butter, and canned peas. it is used as an anticaking agent in table salt and dry mixes. it assists in providing clarity in algin gels and functions as a filler in dental impression materials.

Uses

Magnesium salts, 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.

Uses

Magnesium carbonate (MgCO3) is found in a mixture of natural minerals. It can also be produced in several ways, including pumping carbon dioxide through magnesium oxide or magnesium hydroxide. It is used in pharmaceuticals such as magnesium citrate and as a desiccant to keep hydroscopic products from caking (table salt) and to strengthen rubber and produce dyes, inks, and cosmetics.

Definition

The term magnesium carbonate is generally reserved for the synthetic, pure variety. The naturally occurring material is called magnesite.

Magnesium carbonate Preparation Products And Raw materials

Raw materials

Preparation Products


Magnesium carbonate Suppliers

Global( 179)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Jiangsu Kolod Food Ingredients Co.,Ltd.
+8618805133257 +86-518-85110578 18805133257
+86-518-85110578 sales3257@jskolod.com China 126 60
Henan DaKen Chemical CO.,LTD.
+86-371-66670886
info@dakenchem.com China 21022 58
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
0371-55170693 info@tianfuchem.com CHINA 22607 55
Hebei Guanlang Biotechnology Co., Ltd.
+8619930503282
sales3@crovellbio.com China 5490 58
hdzhl biotechnology co., ltd
86-13032617415
sales@luchibiology.com CHINA 1275 58
Hubei xin bonus chemical co. LTD
86-13657291602
027-59338440 linda@hubeijusheng.com CHINA 23035 58
CONIER CHEM AND PHARMA LIMITED
86-18523575427
sales@conier.com CHINA 47496 58
career henan chemical co
13203830695 0086-371-86658258
0086-371-86658258 factory@coreychem.com CHINA 29865 58
Neostar United (Changzhou) Industrial Co., Ltd.
+0086-519-85557386
+0086-519-85557389 marketing1@neostarunited.com CHINA 4135 58
Zhengzhou Alfa Chemical Co.,Ltd
+86 13343822234
sales5@alfachem.cn;sales9@alfachem.cn;sale1@alfachem.cn;sales7@alfachem.cn CHINA 12061 58

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View Lastest Price from Magnesium carbonate manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2021-07-02 Magnesium carbonate
13717-00-5
US $15.00-10.00 / KG 1KG 99%+ HPLC Monthly supply of 1 ton Zhuozhou Wenxi import and Export Co., Ltd
2019-12-31 Magnesium carbonate
13717-00-5
US $1.00 / KG 1KG 99% 100kg Career Henan Chemical Co
2018-12-17 Magnesium Carbonate
13717-00-5
US $10.00-30.00 / kg 25 kg 99%min 20tons/day Jiangsu Kolod Food Ingredients Co.,Ltd.

13717-00-5(Magnesium carbonate)Related Search:


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  • HEAVY MAGNESIUM CARBONATE USP/EP/BP
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  • 13717-00-5
  • Synthetic Reagents
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