MAGNÉSIO SULFATO 7H2O PA EMSURE ACS,Reag. Ph Eur MERCK - 500g

Assay complexometric 98.0 - 102.0 % 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 as Pb <= 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 %