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Mubychem Group, established in 1976, is the pioneer manufacturer of Zinc Chloride, Ammonium Chloride, Calcium Chloride, Potassium Chloride, Sodium Acetate, Sodium Thiosulphate, Magnesium Carbonate, Pharmaceutical, Fragrance & Flavor chemicals in India. Mubychem Group has several manufacturing facilities spread across Western India. |
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Magnesium Carbonate BP, Magnesium Carbonate USP.. Magnesium Carbonate
Manufacturers
Anhydrous CAS No.: 546-93-0, Molecular Weight: 84.31, Chemical Formula: MgCO3
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For MSDS Sheet Click MSDS Magnesium Carbonate Manufacturers
Magnesium Carbonate
Technical & Pure
Also IP BP Ph. Eur. USP ACS AR LR FCC Food Grades
Heavy Magnesium Carbonate BP
Action
and use
Antacid;
osmotic laxative.
DEFINITION
Hydrated
basic magnesium carbonate.
Content
40.0 per
cent to 45.0 per cent, calculated as MgO.
CHARACTERS
Appearance
White or
almost white powder.
Solubility
Practically
insoluble in water. It dissolves in dilute acids with effervescence.
IDENTIFICATION
A. Bulk
density: minimum 0.25 g/ml.
B. It gives
the reaction of carbonates.
C. Dissolve
about 15 mg in 2 ml of dilute nitric acid and neutralize with dilute
sodium hydroxide solution. The solution gives the reaction of magnesium.
TESTS
Solution S
Dissolve
5.0 g in 100 ml of dilute acetic acid R. When the effervescence has
ceased, boil for 2 min, allow to cool and dilute to 100 ml with dilute acetic
acid. Filter, if necessary, through a previously ignited and tarred porcelain
or silica filter crucible of suitable porosity to give a clear filtrate.
Appearance of solution
Solution S is not more intensely
coloured than reference solution.
Soluble
substances
Maximum 1.0
per cent.
Mix 2.00 g
with 100 ml of water and boil for 5 min. Filter whilst hot through a
sintered-glass filter, allow to cool and dilute to 100 ml with Evaporate 50 ml
of the filtrate to dryness and dry at 100-105 °C. The residue weighs not more
than 10 mg.
Substances insoluble in acetic acid
Maximum
0.05 per cent.
Any residue
obtained during the preparation of solution S, washed, dried, and ignited at 600
± 50°C, weighs not more than 2.5 mg.
Chlorides
Maximum 700
ppm.
Sulphates
Maximum 0.6
per cent.
Arsenic
Maximum 2
ppm, determined on 10 ml of solution S.
Calcium
Maximum
0.75 per cent.
Iron
Maximum 400
ppm.
Heavy
metals
Maximum 20
ppm.
FUNCTIONALITY-RELATED CHARACTERISTICS
This
section is a non-mandatory part of the monograph and it is not necessary to
verify the characteristics to demonstrate compliance.
---Particle-size distribution.
---Bulk and tapped density.
Magnesium Carbonate USP
Magnesium Carbonate USP
Carbonic acid, magnesium salt, basic; or, Carbonic acid, magnesium salt (1:1), hydrate Magnesium carbonate, basic; or, Magnesium carbonate (1:1) hydrate [23389-33-5]. Anhydrous 84.31 [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 105 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
MgCO3
Formula wt, anhydrous 84.31
4MgCO3·Mg(OH)2·5H2O Formula wt, basic 485.65
MgCO3·H2O
Formula wt, monohydrate 102.33
INS: 504(i)
CAS: anhydrous [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%.
Magnesium Carbonate Manufacturers at:
MUBY CHEMICALS
S-8, SARIFA MANSION, 2ND FLANK ROAD, CHINCHBUNDER, MUMBAI
400009, INDIA
TEL: (OFFICE) 91-22-23770100, 23726950, 23774610,
23723564. FAX: 91-22-23728264
e-mail:
info@mubychem.com
Cell Call
to Anmol: +91-9821870100
USA & Canadian Customers may Call
773-829-5811
Copyright and Usual Disclaimer is
Applicable.
Last updated
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