Magnesium Sulfate Crystals, Lab Grade *

Also Known as Magnesium Sulfate Heptahydrate and Epsom Salt


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About Magnesium Sulfate Crystals, Lab Grade

Magnesium Sulfate, also known as Magnesium Sulfate Heptahydrate, Magnesium Sulfate Heptahydrate, and Epsom Salt, is often available as heptahydrate of Magnesium(2+) Sulfate having the chemical formula H14MgO11S or MgSO4-7H2O. It appears as white, odorless hygroscopic crystals or powder and is soluble in water, alcohol at ambient conditions. Lab grade chemicals possess reasonable purity but do not comply with any official standard for quality or purity like the ACS Grade, the USP Grade, or the FCC Grade. The Lab Grade is also known asLaboratory Reagent (LR) and Chemically Pure (CP). Lab Alley’s Magnesium Sulfate Crystal, Lab Grade is recommended for educational institutes, research labs, and commercial applications.

Common Uses and Applications

  • Reagent
  • Floatation therapy


Chemistry Table


Magnesium Sulfate Crystals, Lab Grade Specifications

Assay 98.0-102.0%
pH of a 5% Solution at 25°C 5.0-8.2
Insoluble Matter 0.005%
Chloride 5 ppm
Nitrate 0.002%
Ammonium 0.002%
Calcium 0.02%
Heavy Metals 5 ppm
Iron 5 ppm
Manganese 5 ppm
Potassium 0.005%
Sodium 0.005%
Strontium 0.005%

Safety and Shipping Information

Please contact us to request a Safety Data Sheet (SDS) and Certificate of Analysis (COA) for Magnesium Sulfate Crystals, Lab Grade.

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