1.05827

Magnesium hydroxide carbonate

for analysis EMSURE^®

• Synonym(s): Magnesium hydroxide carbonate, Magnesium carbonate basic
• CAS Number: 12125-28-9
• UNSPSC Code: 12352302
• EC Index Number: 235-192-7

Properties

• Quality Level: 300
• product line: EMSURE^®
• form: solid
• concentration: ≥24% (Mg, complexometric)
• impurities: ≤0.001% Total nitrogen (N); ≤0.005% Substances insoluble in hydrochloric acid; ≤0.5% Substances soluble in water
• pH: 10.5 (20 °C, 50 g/L in H₂O, suspension)
• mp: 600 °C (decomposition)
• solubility: water: insoluble at 20 °C
• density: 2.16 g/cm³ at 20 °C
• anion traces: chloride (Cl^-): ≤0.005%; sulfate (SO₄^2-): ≤0.003%
• cation traces: Ba + Sr (as Ba): ≤0.001%; Ca: ≤0.01%; Cu: ≤0.0005%; Fe: ≤0.001%; K: ≤0.001%; Na: ≤0.2%; Pb: ≤0.001%; Zn: ≤0.0005%; heavy metals (as Pb): ≤0.001%
• storage temp.: 2-30°C
• InChI: 1S/CH2O3.Mg.H2O/c2-1(3)4;;/h(H2,2,3,4);;1H2/q;+2;/p-3
• InChI key: OUHCLAKJJGMPSW-UHFFFAOYSA-K

Description

Analysis Note

Assay (komplexometric, Mg): ≥ 24.0 %
Substances soluble in water: ≤ 0.5 %
Substances insoluble in hydrochloric acid: ≤ 0.005 %
Chloride (Cl): ≤ 0.005 %
Sulfate (SO₄): ≤ 0.003 %
Total nitrogen (N): ≤ 0.001 %
Heavy metals (as Pb): ≤ 0.001 %
Barium and Strontium (as Ba): ≤ 0.001 %
Ca (Calcium): ≤ 0.01 %
Cu (Copper): ≤ 0.0005 %
Fe (Iron): ≤ 0.001 %
K (Potassium): ≤ 0.001 %
Na (Sodium): ≤ 0.2 %
Pb (Lead): ≤ 0.001 %
Zn (Zinc): ≤ 0.0005 %

Legal Information

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

Safety Information

• Storage Class: 13 - Non Combustible Solids
• wgk_germany: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable