Magnesium Hydroxide BP USP FCC IP Manufacturers |
Supplier, Manufacturer, Exporter of Magnesium Hydroxide, Muby Chemicals of Mubychem Group, established in 1976, is the original manufacturers of Specialty Chemicals, Pharmaceutical Excipient, Fragrance Food & Flavor chemicals, Reagent Grade Chemicals, Shale Gas Fracturing Chemicals in India. Mubychem Group has several manufacturing facilities spread across Western India and world wide contacts and toll manufacturers. We are exporting globally to countries like USA, Canada, Europe, UAE, South Africa, Tanzania, Kenya, Egypt, Nigeria, Cameroon, Uganda, Turkey, Mexico, Brazil, Chile, Argentina, Dubai, Korea, Vietnam, Thailand, Malaysia, Indonesia, Australia, China, Germany, France, Italy, Portugal etc. The products are offered as per required specifications and in correct shape and size in mm or meshs or microns as specified by the buyer. The participating units have one or more accreditations like FDA - cGMP and GLP approval, ISO-9001 Certified, "REACH" Registered, ISO-14001, ISO/IEC 17025, ISO-22000, FSSC 22000, ISO 45001, Kosher Certified, Halal Certified, HACCP, FSSAI. We offer Commercial Pure & IP BP EP Ph Eur USP NF JP FCC Food Grade Analytical Reagent Grades of Chemicals |
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Magnesium Hydroxide CAS Number 1309-42-8, Molecular Weight 58.32, Chemical Formula Mg(OH)2
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Magnesium Hydroxide
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Magnesium Hydroxide BP
DEFINITION
Content
95.0 per cent to 100.5 per cent of Mg(OH)2.
CHARACTERS
Appearance
White, fine, amorphous powder.
Solubility
Practically insoluble in water. It dissolves in dilute acids.
IDENTIFICATION
A. 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.
B. It complies with the test for loss on ignition (see Tests).
TESTS
Solution S
Dissolve 5.0 g in a mixture of 50 ml of acetic acid and 50 ml of distilled water. Not more than slight effervescence is produced. Boil for 2 min, 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 2.0 per cent.
Substances insoluble in acetic acid
Maximum 0.1 per cent.
Chlorides
Maximum 0.1 per cent.
Sulphates
Maximum 0.5 per cent.
0.6 ml of solution S diluted to 15 ml with distilled water complies with the limit test for sulphates.
Arsenic
Maximum 4 ppm.
Calcium
Maximum 1.5 per cent.
Iron
Maximum 0.07 per cent.
Heavy metals
Maximum 30 ppm.
Loss on ignition
29.0 per cent to 32.5 per cent. Heat 0.5 g gradually to 900°C and ignite to constant mass.
Magnesium Hydroxide USP
Magnesium Hydroxide
Mg(OH)2 58.32
Magnesium hydroxide.
Magnesium hydroxide [CAS 1309-42-8].
Magnesium Hydroxide, dried at 105 for 2 hours, contains not less than 95.0 percent and not more than 100.5 percent of Mg(OH)2.
Identification— A 1 in 20 solution in 3 N hydrochloric acid responds to the tests for Magnesium.
Microbial limits— It meets the requirements of the test for absence of Escherichia coli.
Loss on drying— Dry it at 105 for 2 hours: it loses not more than 2.0% of its weight.
Loss on ignition— Ignite it at 800 , increasing the heat gradually, to constant weight: it loses between 30.0% and 33.0% of its weight.
Soluble salts— Boil 2.0 g with 100 mL of water for 5 minutes in a covered beaker, filter while hot, cool, and dilute the filtrate with water to 100 mL. Titrate
50 mL of the diluted filtrate with 0.10 N sulfuric acid, using methyl red TS as the indicator: not more than 2.0 mL of the acid is consumed.
Evaporate 25 mL of the
diluted filtrate to dryness, and dry at 105 for 3 hours: not more than 10 mg of residue remains.
Carbonate— Boil a mixture of 0.10 g with 5 mL of water, cool, and add 5 mL of 6 N acetic acid: not more than a slight effervescence is observed.
Limit of calcium— the limit is 1.5%.
Heavy metals—the limit is 20 <g per g.
Lead— limit is 0.001%.
Magnesium Hydroxide FCC Food Grade
Mg(OH)2 Formula weight 58.32
INS: 528 CAS: [1309-42-8]
DESCRIPTION
Magnesium Hydroxide occurs as a white, bulky powder. It is soluble in dilute acids but practically insoluble in water and in alcohol.
Function: pH control; drying agent; color-retention agent.
REQUIREMENTS
Identification: A 1:20 aqueous solution in 2.7 N hydrochloric acid gives positive tests for.
Assay: Not less than 95.0% and not more than 100.5% of Mg(OH)2 after drying.
Alkalies (Free) and Soluble Salts: Passes test.
Calcium Oxide: Not more than 1%.
Lead: Not more than 2 mg/kg.
Loss on Drying: Not more than 2.0%.
Loss on Ignition: Between 30.0% and 33.0%.
We also manufacture and supply as under:
Magnesium Chloride Hexahydrate & Anhydrous
Manufacturers:
MUBY CHEMICALS
Ambernath Mumbai, Ankleshwar Gujarat, India
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Last
4 October, 2023
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