ZINC SULFATE HEPTAHYDRATE, 1 KG, MERCK, 108883

ZINC SULFATE HEPTAHYDRATE, 500 GR, MERCK, 108883 1 KG * foto hanya ilustrasi dari kemasan 500 gr * * HARAP MENANYAKAN STOCK TERLEBIH DAHULU # Description Brand : MERCKMILLIPORE Made in Germany Catalogue Number 108883 Packing : 1 KG (plastic bottle) Synonyms Zinc vitriol Product Information CAS number 7446-20-0 EC index number 030-006-00-9 EC number 231-793-3 Grade ACS,ISO,Reag. Ph Eur Hill Formula OSZn * 7 HO Chemical formula ZnSO * 7 HO Molar Mass 287.54 g/mol HS Code 2833 29 20 Specifications Assay (complexometric) 99.5 - 103.0 % Identity passes test Appearance of solution passes test Insoluble matter 0.01 % pH-value (5 %; water, 25 C) 4.4 - 5.6 Chloride (Cl) 0.0005 % Total nitrogen (N) 0.0005 % Nitrate (NO) 0.002 % As (Arsenic) 0.00005 % Ca (Calcium) 0.001 % Cd (Cadmium) 0.0005 % Cu (Copper) 0.0005 % Fe (Iron) 0.0005 % K (Potassium) 0.001 % Mg (Magnesium) 0.001 % Mn (Manganese) 0.0003 % Na (Sodium) 0.001 % NH (Ammonium) 0.001 % Pb (Lead) 0.001 % Corresponds to ACS, ISO, Reag.PhEur