Merck Magnesium sulfate heptahydrate

Grade:  ACS reagent

Quality Level:  300

Agency:  reag. Ph. Eur.

vapor density:  <0.01 (vs air)

vapor pressure:  <0.1 mmHg ( 20 °C)

product line:  EMSURE®

Assay:  ≥99.5% (complexometric)

            99.0-100.5% dry basis (complexometric)

Form:  solid

Impurities:  ≤0.005% Insoluble matter

Loss:  48.0-52.0% loss on drying, 400 °C

pH:  5.0-8.0 (25 °C, 50 g/L in H2O)

solubility:  710 g/L

density:  1.68 g/cm3 at 20 °C

bulk density:  900 kg/m3

anion traces:  chloride (Cl-): ≤0.0003%

                       nitrate (NO3-): ≤0.002%

cation traces:

As: ≤0.0002%

Ca: ≤0.005%

Cu: ≤0.0001%

Fe: ≤0.0001%

K: ≤0.001%

Mn: ≤0.0005%

N: ≤0.002%

NH4+: ≤0.002%

Na: ≤0.001%

Pb: ≤0.0001%

Sr: ≤0.005%

heavy metals: ≤0.0005%

storage temp.:  2-30°C

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

Application

• Bioflocculant produced by Bacillus velezensis and its potential application in brewery wastewater treatment.: This research explores the application of a bioflocculant produced by Bacillus velezensis, with magnesium sulfate heptahydrate as a potential flocculating agent in brewery wastewater treatment. The study highlights the efficacy of magnesium sulfate heptahydrate in enhancing flocculant performance, offering a cost-effective and eco-friendly solution for wastewater management in the beverage industry (Agunbiade et al., 2022).

Analysis Note

Assay (complexometric): ≥ 99.5 %

Assay (complexometric; calculated on dried substance): 99.0 - 100.5 %

Identity: passes test

Appearance of solution: passes test

Insoluble matter: ≤ 0.005 %

Acidity or alkalinity: passes test

pH-value (5 %; water; 25 °C): 5.0 - 8.0

Chloride (Cl): ≤ 0.0003 %

Total nitrogen (N): ≤ 0.002 %

Nitrate (NO₃): ≤ 0.002 %

Heavy metals (ACS): ≤ 0.0005 %

As (Arsenic): ≤ 0.0002 %

Ca (Calcium): ≤ 0.005 %

Cu (Copper): ≤ 0.0001 %

Fe (Iron): ≤ 0.0001 %

K (Potassium): ≤ 0.001 %

Mn (Manganese): ≤ 0.0005 %

Na (Sodium): ≤ 0.001 %

NH₄ (Ammonium): ≤ 0.002 %

Pb (Lead): ≤ 0.0001 %

Sr (Strontium): ≤ 0.005 %

Loss on drying (400 °C): 48.0 - 52.0 %

Corresponds to ACS, Reag. Ph Eur

Legal Information

EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany