940518

Magnesium sulfate heptahydrate

≥99.9% trace metals basis

• Synonym(s): Epsom salt, Magnesium sulphate heptahydrate, Magnesium(II) sulfate heptahydrate, Epsom salts
• Linear Formula: MgSO₄ · 7H₂O
• CAS Number: 10034-99-8
• Molecular Weight: 246.47
• MDL number: MFCD00149785
• UNSPSC Code: 12141502

Properties

• vapor density: <0.01 (vs air)
• Quality Level: 100
• vapor pressure: <0.1 mmHg ( 20 °C)
• type: (High purity Salts)
• assay: ≥98% (EDTA titration); ≥99.9% trace metals basis
• form: powder or crystals
• color: white to off-white
• solubility: water: soluble
• anion traces: chloride (Cl^-): ≤20 ppm; nitrate (NO₃^-): ≤50 ppm
• cation traces: Al: ≤10 ppm; Ca: ≤10 ppm; Cd: ≤10 ppm; Cr: ≤10 ppm; Fe: ≤10 ppm; K: ≤10 ppm; Na: ≤30 ppm; Ni: ≤10 ppm; Pb: ≤10 ppm; Si: ≤10 ppm; Zn: ≤10 ppm
• storage temp.: room temp
• SMILES string: O.O.O.O.O.O.O.[Mg++].[O-]S([O-])(=O)=O
• InChI: 1S/Mg.H2O4S.7H2O/c;1-5(2,3)4;;;;;;;/h;(H2,1,2,3,4);7*1H2/q+2;;;;;;;;/p-2
• Inchi Key: WRUGWIBCXHJTDG-UHFFFAOYSA-L

Description

General description

Magnesium Sulfate heptahydrate, commonly known as Epsom salt, is a white crystalline solid. It is highly soluble in water, forming a solution that is commonly used in various applications such as bath salts, fertilizers, and as a component in certain medical treatments. However, it is insoluble in ethanol. It is the source of Magnesium and sulfur.

Application

Magnesium Sulfate heptahydrate is found as a salt of high energy storage and sorption capacity. It was embedded in the polymeric matrix to form a foam for energy storage which prevents issue of swelling, agglomeration, and/or deliquescence of the salt during its de/hydration process. [,] Researchers are developing new adsorbents for removing toxic dyes from wastewater using Magnesium Sulfate heptahydrate. It is essential for creating porous MgAl-layered double hydroxide (LDH)/carbon fiber composites and MgFe₂O₄/γ-Fe₂O₃ magnetic microspheres. These composites effectively adsorb Congo red dye through a combination of biotemplating and pollen template.[,]

Safety Information

• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable