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Magnesium Sulfate Anhydrous ( Drying Agent ) MgSO4 - 500g
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Description
Magnesium Sulfate Anhydrous
Other Names: Dried Magnesium Sulfate, Magnesium Sulphate (anhydrous)
Chemical Formula: MgSO₄
Molar Mass: 120.37 g/mol
CAS Number: 7487-88-9
Appearance: White, odorless, crystalline powder or granules
Grade: Laboratory reagent, drying agent
Magnesium sulfate anhydrous is a highly effective drying agent widely used in organic synthesis for the removal of water from solvents and reaction mixtures. It is also used in desiccators, chemical processing, and analytical laboratories.
Chemical and Physical Properties
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Density: ~2.66 g/cm³
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Melting Point: Decomposes above 1124 °C
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Solubility in Water: 25.5 g/100 mL at 20 °C
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Solubility in Other Solvents: Insoluble in ethanol and ether
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Hygroscopicity: Strongly hygroscopic — rapidly absorbs moisture from the air
Applications
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Drying Agent: Commonly used in laboratories to remove residual moisture from organic solvents.
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Chemical Processing: Employed in the synthesis of other magnesium compounds and in catalysts.
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Desiccant: Used in desiccators and drying tubes.
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Thermal Decomposition Studies: Acts as a source of magnesium oxide (MgO) upon calcination.
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Analytical Chemistry: Used in gravimetric analysis and standardization procedures.
Safety
Signal Word: ⚠️ Warning
H302 (57.2%): Harmful if swallowed [Warning Acute toxicity, oral]
H312 (51.5%): Harmful in contact with skin [Warning Acute toxicity, dermal]
H332 (57.1%): Harmful if inhaled [Warning Acute toxicity, inhalation]
P261, P264, P270, P271, P280, P301+P317, P302+P352, P304+P340, P317, P321, P330, P362+P364, and P501
Handling and Storage
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Handling: Avoid dust formation. Handle with protective equipment and use in a well-ventilated area.
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Storage: Store in a tightly sealed container in a dry, cool place. Protect from moisture.
Environmental Considerations
Magnesium sulfate is not classified as environmentally hazardous in typical laboratory quantities. However, large-scale disposal must follow local environmental regulations to prevent excessive sulfate release into water systems.