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1.05853 Supelco

Magnesium nitrate hexahydrate

for analysis EMSURE® ACS,Reag. Ph Eur

Synonym: Magnesium nitrate hexahydrate

  • CAS Number 13446-18-9

  • Linear Formula Mg(NO3)2 · 6 H2O

  • Molecular Weight 256.41

  •  EC Index Number 233-826-7

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Properties

Quality Level   300
grade   ACS reagent
Agency/Method   reag. Ph. Eur.
assay   99.0-102.0% (complexometric)
form   solid
potency   5440 mg/kg LD50, oral (Rat)
pH   5.0-7.0 (25 °C, 50 g/L in H2O)
mp   89 °C (for the hexahydrate)
solubility   420 g/L
density   1.46 g/cm3 at 20 °C
anion traces   chloride (Cl-): ≤0.001%
  phosphate (PO43-): ≤0.0005%
  sulfate (SO42-): ≤0.002%
cation traces   As: ≤ 0.0001%
  Ba: ≤ 0.005%
  Ca: ≤ 0.005%
  Fe: ≤ 0.0005%
  K: ≤ 0.0005%
  Mn: ≤ 0.0005%
  NH4+: ≤ 0.001%
  Na: ≤ 0.0005%
  Sr: ≤ 0.005%
  heavy metals: ≤ 0.0005%
InChI   1S/Mg.2NO3.6H2O/c;2*2-1(3)4;;;;;;/h;;;6*1H2/q+2;2*-1;;;;;;
InChI key   MFUVDXOKPBAHMC-UHFFFAOYSA-N
storage conditions   Store at +15°C to +25°C.

Description

Linkage

Replaces: MX0060-1

Analysis Note

Assay (complexometric): 99.0 - 102.0 %
Insoluble matter: ≤ 0.005 %
pH-value (5 %; water, 25 °C): 5.0 - 7.0
Chloride (Cl): ≤ 0.001 %
Phosphate (PO₄): ≤ 0.0005 %
Sulfate (SO₄): ≤ 0.002 %
Heavy metals (ACS): ≤ 0.0005 %
As (Arsenic): ≤ 0.0001 %
Ba (Barium): ≤ 0.005 %
Ca (Calcium): ≤ 0.005 %
Fe (Iron): ≤ 0.0005 %
K (Potassium): ≤ 0.0005 %
Mn (Manganese): ≤ 0.0005 %
Na (Sodium): ≤ 0.0005 %
NH₄ (Ammonium): ≤ 0.001 %
Sr (Strontium): ≤ 0.005 %
Corresponds to ACS,Reag. Ph Eur

Legal Information

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

Safety & Documentation

Safety Information

WGK Germany 
WGK 1
Protocols & Articles

Articles

Analytical Method: Analytical Quality Assurance, Standard for Magnesium

Dissolve 1.055 g of magnesium nitrate hexahydrate in a calibrated or conformity-checked 100-ml volumetric flask and make up to the mark with distilled water. The stock solution prepared according to ...

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