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Magnesium Carbonate
CAS Number: 546-93-0, 23389-33-5 & 39409-82-0
Molecular Formula: MgCO3
Molecular Weight: 84.31
Magnesium Carbonate
Magnesium Carbonate USP Grade Specifications:
Carbonic acid, magnesium salt, basic; or, Carbonic acid, magnesium salt (1:1), hydrate Magnesium carbonate, basic; or, Magnesium carbonate (1:1) hydrate CAS 23389-33-5. Anhydrous 84.31 CAS 546-93-0.
Magnesium Carbonate is a basic hydrated MgCO3 or a normal hydrated MgCO3. It contains the equivalent of not less than 40.0 percent and not more than 43.5 percent of magnesium oxide (MgO).
Identification: When treated with 3 N hydrochloric acid, it dissolves with effervescence, and the resulting solution responds to the tests for Magnesium.
Microbial limits: It meets the requirements of the test for absence of Escherichia coli.
Soluble salts: Mix 2.0 g with 100 mL of a mixture of equal volumes of n-propyl alcohol and water. Heat the mixture to the boiling point with constant stirring, cool to room temperature, dilute with water to 100 mL, and filter. Evaporate 50 mL of the filtrate on a steam bath to dryness, and dry at 105C for 1 hour: the weight of the residue does not exceed 10 mg (1.0%).
Acid-insoluble substances: Mix 5.0 g with 75 mL of water, add hydrochloric acid in small portions, with agitation, until no more of the material dissolves, and boil for 5 minutes. If an insoluble residue remains, filter, wash well with water until the last washing is free from chloride, and ignite: the weight of the ignited residue does not exceed 2.5 mg (0.05%).
Arsenic: The limit is 4 ppm.
Limit of calcium: the limit is 0.45%.
Heavy metals: the limit is 0.003%.
Iron: the limit is 0.02%.
Magnesium Carbonate FCC Food Grade Specifications
MgCO3 Formula weight, anhydrous 84.31
4MgCO3-Mg(OH)2-5H2O Formula wt, basic 485.65
MgCO3-H2O Formula weight, monohydrate 102.33
INS: 504(i) CAS: anhydrous CAS 546-93-0
CAS: basic 39409-82-0
CAS: monohydrate 23389-33-5
DESCRIPTION
Magnesium Carbonate occurs as light, white, friable masses, or as a bulky, white powder. It is a basic hydrated MgCO3 or a normal hydrated MgCO3. It is stable in air. It is practically insoluble in water, to which, however, it imparts a slightly alkaline reaction. It is insoluble in alcohol, but dissolves, with effervescence, in dilute acids.
Function: pH control; drying agent; color-retention agent; ant caking agent; carrier.
REQUIREMENTS
Identification: When treated with 2.7 N hydrochloric acid, a sample dissolves with effervescence, and the resulting solution gives positive tests for Magnesium.
Assay: The equivalent of not less than 40.0% and not more than 43.5% of MgO.
Acid-Insoluble Substances: Not more than 0.05%.
Calcium Oxide: Not more than 0.6%.
Lead: Not more than 2 mg/kg.
Soluble Salts: Not more than 1%.
We also supply Magnesium Carbonate of BP Ph Eur grade.
Please visit SDS Safety Data Sheet of Magnesium Carbonate Suppliers.
American Molecules, also known as ammol.org is a distributor, supplier and manufacturers' representative of all types of Pharmaceuticals, Functional Ingredients, Excipients and Specialty Chemicals in Texas USA. Our principals manufacture supply and export USP NF BP, Ph Eur, etc grades of chemicals pure and reagent grade, mineral fortifiers, FCC food grade. Tailor made particle size and customized specifications are offered. The principal's facility is having one or more of the certifications like FDA approval and GLP, cGMP, ISO9001, ISO14001, ISO/IEC 17025, ISO22000, FSSC 22000, ISO45001, FSSAI, Kosher, HALAL, COPP, WHO-GMP certified and Written Confirmation (WC) for export to Europe is available. The manufacturers suppliers and exporters observe WHO Good Manufacturing Practices and Good Laboratory Practices.
Suppliers and Manufacturers' Representative:
9910 Bent Oak Dr
Houston, TX 77040, USA
Call Toll Free: 1-855-55-AMMOL 1-855-552-6665
Email: info@ammol.org