Anhydrous magnesium sulfate
Anhydrous magnesium sulfate is a white, crystalline solid that appears as a fine powder. It is odorless and highly hygroscopic,
meaning it readily absorbs moisture from the air. This property makes it an excellent drying agent in various chemical applications.
The compound has a molecular weight of 120.37 g/mol and a density of 2.66 g/cm³. It melts at 1124°C (2055°F) and decomposes
at higher temperatures. Anhydrous magnesium sulfate is soluble in water, with a solubility of about 26 g per 100 mL at 20°C, and
it is also soluble in glycerol and slightly soluble in alcohol. The substance does not conduct electricity in its solid state but conducts
when dissolved in water due to the presence of free ions. It is often used in laboratories, in organic synthesis, and as a drying agent
for solvents and gases.
Test item |
Specification |
(MgSO4)
Content |
99.5% min |
MgSO4 |
48.59% min |
pH(5W/V%Sol) |
5-8 |
Iron (Fe) |
0.001% max |
Chlorid (Cl) |
0.015% max |
Heavy metal (Pb) |
0.0008% max |
Arsenic (As) |
0.0002% max |
Size |
2-4 mm |
Application:Anhydrous magnesium sulfate, a highly versatile compound, finds extensive application across various industries. In
the pharmaceutical industry, it serves as a critical drying agent, ensuring the moisture-free production of medications and aiding
in the stabilization of active ingredients. The compound's desiccant properties are equally valued in organic synthesis laboratories,
where it facilitates the removal of water from solvents and reaction mixtures, thus enhancing the purity and yield of chemical products.
Additionally, anhydrous magnesium sulfate is employed in the agricultural sector as a soil conditioner and fertilizer, providing essential
magnesium for plant growth. In the food industry, it functions as a firming agent and flavor enhancer. Its diverse uses underscore its
importance in maintaining the efficiency and quality of processes and products across multiple fields.
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