Magnesium Sulfate is an inorganic compound with the chemical formula MgSO₄ and CAS Number 7487-88-9 for the anhydrous form. It is commonly supplied as a white crystalline powder or colourless crystals and is soluble in water. Different hydrated forms are also available, including Magnesium Sulfate Monohydrate (MgSO₄·H₂O), Magnesium Sulfate Heptahydrate (MgSO₄·7H₂O), and Magnesium Sulfate Dihydrate (MgSO₄·2H₂O), each with different physical properties and CAS numbers.

Magnesium Sulfate is valued as a source of magnesium and sulfate ions in aqueous solutions and chemical reactions. Common laboratory applications include the preparation of magnesium-containing solutions, buffer preparation, microbiological culture media, biochemical experiments, analytical chemistry procedures, and research involving magnesium-dependent enzymes. It is also used as a drying agent in organic chemistry, particularly for removing residual water from organic solvent extracts.

Its water solubility and ability to provide magnesium ions make Magnesium Sulfate useful in analytical chemistry, biochemistry, microbiology, inorganic chemistry, and general laboratory research. It may also be used in specialised chemical formulations, educational experiments, and applications requiring a soluble magnesium salt. The appropriate grade, purity, and hydration form should be selected according to the requirements of the intended application.

KSFE Malaysia supplies laboratory chemicals and scientific products for research institutions, educational facilities, and general laboratory applications.

Safety Note: Magnesium Sulfate is generally considered a low-hazard laboratory chemical when handled appropriately. However, dust may cause irritation to the eyes, skin, and respiratory tract. Avoid inhalation of dust and direct contact with the eyes. Handle it using appropriate personal protective equipment, including laboratory gloves and safety goggles. Store in a tightly closed container in a cool, dry place to minimise moisture absorption. Follow the supplier's safety data sheet (SDS) for proper handling, storage, and disposal.