magnesium sulphate monohydrate Chemical Properties

Melting point:

150 °C (dec.)(lit.)

Density 

2.57 g/mL at 25 °C(lit.)

form 

colorless monoclinic crystals

color 

colorless monoclinic crystals, crystalline

Water Solubility 

H2O: 37.1% (67.5°C), 8% (170°C), 0.5% (240°C) [KIR81]

InChI

InChI=1S/Mg.H2O4S.H2O.2H/c;1-5(2,3)4;;;/h;(H2,1,2,3,4);1H2;;

InChIKey

KYFOQFUGZMCPJK-UHFFFAOYSA-N

SMILES

S(O)(O)(=O)=O.[Mg].O

EPA Substance Registry System

Sulfuric acid magnesium salt (1:1), monohydrate (14168-73-1)

Safety Information

WGK Germany 

1

RTECS 

OM4500000

F 

3

Storage Class

11 - Combustible Solids

MSDS

• Language:English Provider:SigmaAldrich
• Language:English Provider:ALFA

magnesium sulphate monohydrate Usage And Synthesis

Chemical Properties

colorless crystal(s); monoclinic, a=0.690nm, b=0.771 nm, c=0.754nm [KIR81]

Uses

Magnesium sulfate monohydrate can be used:

• As a precursor to synthesize magnetic manganese ferrite nanoparticles by alkaline coprecipitation.
• To fabricate manganese octahedral molecular sieve (OMS-2) catalysts for selective aerobic oxidation of aromatic and aliphatic thiols.
• As a catalyst to synthesize benzo-2-pyrones and benzopyrazines.
• As a precursor to synthesize manganese oxide nanoparticles for energy storage applications.

Agricultural Uses

Kieserite is a greyish-white crystalline powder which contains about 16% magnesium and is used as a fertilizer. It is regarded as a concentrated form of epsom salt, having less water of crystallization. The monohydrate MgSO₄·H₂O(m onoclinic) occurs in nature as kieserite which contains 27% magnesium (as MgO) and 22% sulphur.

Synthesis

The production principle of magnesium sulfate monohydrate is that concentrated sulfuric acid reacts directly with light burnt powder (bituminous earth powder) or crushed magnesite raw ore to obtain fertilizer grade magnesium sulfate monohydrate. The following is a detailed summary: First sulfuric acid and magnesium oxide-containing mineral powder (dolomite, rhodochrosite, serpentine) or its calcined powder according to the proportion of measurement; in the neutralization tank to add water or wash water, mother liquor, in the stirring under the Xu Xu added mineral powder, then add sulfuric acid for neutralization reaction, control slurry pH = 5, the density of 1.370 ~ 1.384g/cm3; will be neutralized to maintain the liquid reaction of 80 degrees for a certain period of time, through the blade filter filtering, the clear liquid into the crystallizer. Clear liquid into the crystallizer; cooling to below 30 degrees, centrifugal separation (can be washed in the centrifuge), the wet material into the dehydration dryer, dehydration and drying at more than 200 degrees to produce magnesium sulfate monohydrate.

magnesium sulphate monohydrate(14168-73-1)Related Product Information

• Sodium Phosphate, Dibasic
• Potassium chloride
• Manganese sulfate monohydrate
• Sodium sulfate
• Lithium Bromide hydrate
• Barium hydroxide monohydrate
• Lithium sulfate monohydrate
• Zinc sulfate heptahydrate
• Magnesium chloride hexahydrate
• Ammonium sulfate
• Lithium chloride monohydrate
• Zinc sulfate monohydrate
• Magnesium sulfate
• Magnesium sulfate hydrate
• Kieserite (Mg(SO4).H2O)
• Magnesium sulfate heptahydrate
• KIESERITE 27% MGSO4 H2O
• Magnesium Sulphate Hydrate