Magnesium Sulfate or Magnesium Sulphate Anhydrous Monohydrate Dried Heptahydrate Specifications of Commercial Pure & BP Ph Eur USP Analytical Reagent FCC Food Grade & Micro-Encapsulated Magnesium Sulfate Manufacturers & Exporters
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Magnesium Sulfate or Magnesium Sulphate Anhydrous CAS Number 7487-88-9
Magnesium Sulfate or Magnesium Sulphate Monohydrate CAS Number 14567-64-7
Magnesium Sulfate or Magnesium Sulphate Dried CAS Number 15244-36-7
Magnesium Sulfate or Magnesium Sulphate Heptahydrate CAS Number 10034-99-8
Micro-Encapsulated Magnesium Sulfate
We offer magnesium sulfate or magnesium sulphate anhydrous with almost nil moisture and of reagent grade for desication and research use.
Specifications of Magnesium Sulphate Anhydrous or Magnesium Sulfate Anhydrous:
Appearance: Fine White Sparkling free-flowing crystals
Molecular Formula: MgSO4
Molecular Weight: 120.37
Solubility: Soluble in water
Purity as (MgSO4): 99% minimum.
Moisture: Almost Nil.
pH of 5% Aqueous Solution: about 7 + / - 0.5
Chloride as (Cl)%: 0.02 % minimum.
Heavy Metals as (Pb): Almost nil.
Arsenic as (As2O3): 1.00 ppm maximum.
Iron as (Fe): 20 ppm maximum.
Manganese as (Mn): 25 ppm maximum.
Specifications of Magnesium Sulfate Heptahydrate:
Appearance: Fine, white, sparkling crystal, free flowing
Molecular formula: MgSO4-7H2O
Solubility: Readily soluble in water
Purity as (MgSO4-7H2O ): 99% minimum.
Magnesium oxide as (MgO): 16.20% minimum.
Magnesium as (Mg): 9.70% minimum.
Sulphur as (SO4): 38.60% minimum.
pH of 5% aqueous solution: 7 + / - 0.5
Chlorides as (Cl) % by mass: 0.012 % maximum.
Heavy metals as (Pb): not detectable.
Arsenic as (As2O3):less than 1.00 ppm maximum.
Iron as (Fe): 10 ppm maximum.
Manganese as (Mn): 15 ppm maximum.
Specifications of Micro-encapsulated Magnesium Sulfate:
Assay of Magnesium Sulfate: 80%.
Assay of coating medium: Balance.
Dried Magnesium Sulphate BP Ph Eur Grade Magnesium Sulfate
Dried Epsom Salts
Magnesium Sulphate Dried is offered in BP grade
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.
Magnesium Sulphate Heptahydrate BP Ph Eur Grade
Epsom Salts
MgSO4,7H2O -- 246.5 -- CAS 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 Grade
MgSO4-xH2O
Sulfuric acid magnesium salt (1:1), hydrate.
Magnesium sulfate (1:1) monohydrate 138.36
Magnesium sulfate (1:1) heptahydrate 246.48 [CAS 10034-99-8].
Anhydrous 120.37 [CAS 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) responds 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 µg per g.
FOR MAGNESIUM SULFATE INTENDED FOR USE IN PREPARING PARENTERAL DOSAGE FORMS— the limit is 0.5 µg 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 Food Grade Magnesium Sulphate
Epsom Salt
MgSO4-xH2O Formula weight, monohydrate 138.38
Formula weight, heptahydrate 246.47
INS: 518
CAS: monohydrate 14168-73-1
CAS heptahydrate 10034-99-8
CAS dried 15244-36-7
Magnesium Sulphate Dried is offered in FCC food grade
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 Analytical Reagent Grade Magnesium Sulphate
Magnesium Sulfate Heptahydrate
MgSO4 - 7H2O
Formula Weight 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.
SDS MSDS of Magnesium Sulfate or Magnesium Sulphate Anhydrous Monohydrate Dried Heptahydrate BP Ph Eur EP JP USP NF IP ACS Analytical Reagent FCC Food grade & Micro-Encapsulated Magnesium Sulfate Manufacturers |
