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Magnesium Sulphate BP IP Magnesium Sulfate USP ACS Analytical Reagent FCC Food grade Manufacturers

Epsom Salt; Magnesium Sulfate Monohydrate Molecular Weight 138.36, CAS Number 14567-64-7, EINECS 231-298-2, HS Code 283321**, Chemical Formula MgSO4.H2O
Magnesium Sulfate Heptahydrate Molecular Weight 246.48, CAS Number 10034-99-8, EINECS 231-298-2, HS Code: 283321**, Chemical Formula MgSO4.7H2O
Magnesium Sulfate Anhydrous Molecular Weight 120.37, CAS Number 7487-88-9, EINECS 231-298-2, HS Code: 283321**, Chemical Formula MgSO4

Magnesium Sulphate IP Grade
Magnesium Sulphate BP Grade
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Magnesium Sulfate ACS AR Analytical Reagent Grade

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Magnesium Sulfate Sulphate Heptahydrate Anhydrous
MSDS Sheet of Magnesium Sulfate Sulphate Anhydrous & Monohydrate Manufacturers
MSDS Sheet of Magnesium Sulfate Sulphate Heptahydrate BP IP USP ACS AR Analytical Reagent FCC Food grade Manufacturers

Magnesium Sulphate BP IP Magnesium Sulfate USP ACS AR Analytical Reagent FCC Food Grade Manufacturers

Magnesium Sulfate
Technical & Pure Crystals, Anhydrous, Monohydrate, Heptahydrate
Also IP BP Ph. Eur. USP ACS AR LR FCC Food Grades

Magnesium Chloride Heptahydrate Magnesium Chloride Anhydrous

Magnesium Sulfate Magnesium Sulphate
British Pharmacopoeia
Dried Magnesium Sulphate

Dried Magnesium Sulphate BP Magnesium Sulfate

Dried Epsom Salts
Preparation
Magnesium Sulphate Paste

DEFINITION
Dried Magnesium Sulphate contains not less than 62.0% and not more than 70.0% of MgSO4.
It may be prepared by drying magnesium sulphate at 100 until it has lost approximately 25% of its weight.

CHARACTERISTICS
A white powder.
Freely soluble in water; dissolves more rapidly in hot water.

IDENTIFICATION
Yields the reactions characteristic of magnesium salts and of sulphates.

TESTS
Acidity or alkalinity
To 10 ml of a 7.5% w/v solution in carbon dioxide-free water add 0.05 ml of phenol red solution. Not more than 0.2 ml of either 0.01M hydrochloric acid VS or 0.01M sodium hydroxide VS is required to change the colour of the solution.
Arsenic
0.33 g dissolved in 25 ml of water complies with the limit test for arsenic, (3 ppm).
Heavy metals
Dissolve 1.3 g in 20 ml of water and add 1 g of ammonium chloride. 12 ml of the resulting solution complies with limit test A for heavy metals, Appendix VII. Use lead standard solution(1 ppm Pb) to prepare the standard (15 ppm).
Iron
0.33 g dissolved in 10 ml of water complies with the limit test for iron, Appendix VII (30 ppm).
Chloride
0.13 g dissolved in 15 ml of water complies with the limit test for chlorides, Appendix VII (400 ppm).
Insoluble matter
7.5 g dissolves in 20 ml of water, producing a solution which may be slightly turbid at first but which becomes clear in a few minutes.


British Pharmacopoeia 2009
Magnesium Sulphate Heptahydrate

Magnesium Sulphate Heptahydrate BP

Epsom Salts
MgSO4,7H2O   246.5    10034-99-8
Action and use
Osmotic laxative; used in treatment of electrolyte deficiency.

DEFINITION
Content
99.0 per cent to 100.5 per cent (dried substance).

CHARACTERS
Appearance
White or almost white, crystalline powder or brilliant, colourless crystals.
Solubility
Freely soluble in water, very soluble in boiling water, practically insoluble in ethanol (96 per cent).

IDENTIFICATION
A. It gives the reactions of sulphates.
B. It gives the reaction of magnesium.

TESTS
Solution S
Dissolve 5.0 g in water R and dilute to 50 ml with the same solvent.
Appearance of solution
Solution S is clear and colourless.
Acidity or alkalinity
To 10 ml of solution S add 0.05 ml of phenol red solution. Not more than 0.2 ml of 0.01 M hydrochloric acid or 0.01 M sodium hydroxide is required to change the colour of the indicator.
Chlorides
Maximum 300 ppm.
Arsenic
Maximum 2 ppm, determined on 0.5 g.
Iron
Maximum 20 ppm.
Heavy metals
Maximum 10 ppm.
Loss on drying
48.0 per cent to 52.0 per cent, determined on 0.500 g by drying in an oven at 110-120C for 1 h and then at 400C to constant mass.


Magnesium Sulfate USP

MgSO4xH2O
Sulfuric acid magnesium salt (1:1), hydrate.
Magnesium sulfate (1:1) monohydrate 138.36
Magnesium sulfate (1:1) heptahydrate 246.48 [10034-99-8].
Anhydrous 120.37 [7487-88-9].

Magnesium Sulfate, rendered anhydrous by ignition, contains not less than 99.0 percent and not more than 100.5 percent of MgSO4.

Identification A solution (1 in 20) resonds to the tests for Magnesium and for Sulfate.
pH: between 5.0 and 9.2, in a solution (1 in 20).
Loss on drying Dry it at 105 for 2 hours: the anhydrous form loses not more than 2% of its weight.
Loss on ignition Weigh accurately about 1 g in a crucible, heat at 105 for 2 hours, then ignite in a muffle furnace at 450 25 to constant weight: the monohydrate loses between 13.0% and 16.0% of its weight, the dried form loses between 22.0% and 28.0% of its weight, and the heptahydrate loses between 40.0% and 52.0% of its weight.
Chloride A 1.0-g portion shows no more chloride than corresponds to 0.20 mL of 0.020 N hydrochloric acid (0.014%).
Iron
FOR MAGNESIUM SULFATE INTENDED FOR USE IN PREPARING NON-PARENTERAL DOSAGE FORMS
Dissolve 0.50 g in 40 mL of water and proceed as directed in the test for Iron: the limit is 20 g per g.
FOR MAGNESIUM SULFATE INTENDED FOR USE IN PREPARING PARENTERAL DOSAGE FORMS the limit is 0.5 g per g.
Heavy metals Dissolve 2 g in 25 mL of water: the limit is 0.001%.
Selenium The limit is 0.003%.


Magnesium Sulfate FCC Magnesium Sulphate

Epsom Salt
MgSO4xH2O Formula wt, monohydrate 138.38
Formula wt, heptahydrate 246.47
INS: 518 CAS: monohydrate [14168-73-1]
CAS: heptahydrate [10034-99-8]
CAS: dried [15244-36-7]

DESCRIPTION
Magnesium Sulfate occurs as a colorless crystal or a granular crystalline powder. It is produced with one or seven molecules of water of hydration or in a dried form containing the equivalent of about 2.3 waters of hydration. It is readily soluble in water, slowly soluble in glycerin, and sparingly soluble in alcohol.
Function: Nutrient.

REQUIREMENTS
Identification: A 1:20 aqueous solution gives positive tests for Magnesium and for Sulfate.
Assay: Not less than 99.5% of MgSO4 after ignition.
Lead: Not more than 4 mg/kg.
Loss on Ignition Monohydrate: Between 13.0% and 16.0%; Heptahydrate: Between 40.0% and 52.0%; Dried: Between 22.0% and 28.0%.
Selenium: Not more than 0.003%.


Magnesium Sulfate ACS Analytical Reagent Magnesium Sulphate

Reagent Chemicals
ACS Specifications
Magnesium Sulfate Heptahydrate
MgSO4 - 7H2O
Formula Wt 246.48
CAS Number 10034-99-8

REQUIREMENTS
Assay .............. 98.0-102.0% MgSO4-7H2O
pH of a 5% solution- 5.0-8.2 at 25C

MAXIMUM ALLOWABLE
Insoluble matter ... 0.005%
Chloride (Cl) ...... 5 ppm
Nitrate (NO3) ...... 0.002%
Ammonium (NH4) ..... 0.002%
Calcium (Ca) ....... 0.02%
Manganese (Mn) ..... 5 ppm
Potassium (K) ...... 0.005%
Sodium (Na) ........ 0.005%
Strontium (Sr) ..... 0.005%
Heavy metals (as Pb) 5 ppm
Iron (Fe) .......... 5 ppm

Manufacturers:

MUBY CHEMICALS
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Last updated: 01 October, 2014.

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