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Magnesium Sulphate Anhydrous

Other Trading Names:

  • Epsom Salt
  • Bitter Salt
  • English Salt
  • Sulfuric Acid Magnesium Salt (1:1)
  • Magnesium Sulfate (Anhydrous)
  • Anhydrous Epsom Salt

CAS Number: 7487-88-9

HS Code: 283321

Types of Packaging:

  • 25 kg bag
  • 50 kg drum
  • 20-foot or 40-foot containers
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Magnesium Sulphate Anhydrous

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Specification

Detail

Chemical Name

Magnesium Sulphate Anhydrous

Chemical Formula

MgSO₄

CAS Number

7487-88-9

Appearance

White, crystalline powder

Solubility in Water

Soluble

Melting Point

Approx. 1,124°C (2,055°F)

Density

Approx. 2.66 g/cm³

Molecular Weight

120.37 g/mol

pH (in aqueous solution)

Typically 5.5 - 7.5

Purity

Generally ≥ 99%

General Overview:

  • Magnesium Sulphate Anhydrous is a chemical compound with the formula MgSO₄.
  • It is the anhydrous (water-free) form of magnesium sulfate.
  • Commonly known as Epsom salt in its hydrated form.

Physical Properties:

  • Appears as a white, crystalline powder.
  • Has a melting point of approximately 1,124°C (2,055°F).
  • Exhibits a density of around 2.66 g/cm³.
  • Odorless with a bitter taste.

Chemical Properties:

  • Highly soluble in water, with a moderate solubility in ethanol.
  • The solubility increases with temperature.
  • In aqueous solution, it dissociates into magnesium and sulfate ions.
  • Exhibits hygroscopic properties, meaning it can absorb water from the air.

Production:

  • Obtained through the dehydration of magnesium sulfate heptahydrate.
  • Can also be synthesized by the reaction of magnesium oxide or carbonate with sulfuric acid.

Grades and Purity:

  • Typically available in high-purity grades, often ≥99% pure.
  • Pharmaceutical grade is available, which meets specific purity standards for medical use.
  • Food grade is also produced, suitable for consumption and food processing.

Health and Safety:

  • Considered non-toxic and generally safe for use in foods and pharmaceuticals.
  • Can cause skin and eye irritation upon contact in its pure form.
  • Inhalation of dust may cause respiratory irritation.

Applications:

  • Agriculture: Used as a fertilizer and soil conditioner.
  • Pharmaceuticals: In medicinal formulations, laxatives, and as an electrolyte replenisher.
  • Food Industry: As a firming agent and nutrient source in food processing.
  • Chemical Industry: Used in the preparation of other magnesium compounds.
  • Personal Care Products: Ingredients in bath salts, beauty products, and skincare formulations.
  • Environmental Control: Employed in water treatment and flue gas desulfurization.

Environmental Impact and Sustainability:

  • Considered environmentally benign.
  • Non-hazardous to soil, water, and air when used responsibly.
  • The production process aims to minimize waste and energy usage.

Storage and Handling:

  • Should be stored in a cool, dry place in tightly sealed containers.
  • Hygroscopic nature requires protection from moisture.
  • Standard safety equipment (gloves, goggles) recommended during handling.

Regulatory Aspects:

  • Regulated by food and drug authorities in many countries for its use in food and pharmaceuticals.
  • Classified under different regulatory categories based on its application and purity.

Analytical Methods and Quality Control:

  • Quality and purity tested using methods like AAS (Atomic Absorption Spectroscopy).
  • Particle size distribution, pH, and impurity profile are important quality parameters.

Market and Economic Aspects:

  • Widely available and produced by several companies globally.
  • Market demand driven by diverse applications in agriculture, industry, and healthcare.
  • Pricing is influenced by purity, grade, and market dynamics.
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Magnesium Sulphate Anhydrous