MAGNESIUM SULFATE HEPTAHYDRATE (MgSO4.7H2O), 500 GR, MERCK, 105886

MAGNESIUM SULFATE HEPTAHYDRATE FOR ANALYSIS EMSURE ACS,REAG. PH EUR 500 GR Description Brand : MERCKMILLIPORE Made in Germany Catalogue Number 105886 Synonyms bitter salt, epsom salt, sulfuric acid magnesium salt heptahydrate Description Magnesium sulfate heptahydrate Packing : 500 GR (Plastic Bottle) Specifications 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; 25C) 5.0 - 8.0 Chloride (Cl) 0.0003 % Total nitrogen (N) 0.002 % Nitrate (NO) 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 % NH (Ammonium) 0.002 % Pb (Lead) 0.0001 % Sr (Strontium) 0.005 % Loss on drying (400C) 48.0 - 52.0 % Corresponds to ACS, Reag. Ph Eur Description Catalogue Number 104873 Synonyms mono-Potassium orthophosphate, Potassium biphosphate, Potassium phosphate monobasic Product Information CAS number 7778-77-0 EC number 231-913-4 Grade ISO Hill Formula HKOP Chemical formula KHPO Molar Mass 136.08 g/mol HS Code 2835 24 00 Specifications Assay (alkalimetric, calculated on dried substance) 99.5 - 100.5 % Assay (alkalimetric; dried substance) 99.5 % pH-value (5%; water) 4.2 - 4.5 Chloride (Cl) 0.0005 % Sulphate (SO) 0.003 % Total nitrogen (N) 0.001 % Heavy metals (as Pb) 0.0010 % As (Arsenic) 0.0002 % Cu (Copper) 0.0003 % Fe (Iron) 0.0010 % Na (Sodium) 0.02 % Pb (Lead) 0.001 % Reducing substances passes test Loss on drying (110C) 0.2 % Loss on drying (130C) 0.2 % Correspons to ISO