Reactivi si standard pentru laborator

Reactivi si standard pentru laborator conform oferta 9585: Nr. crt COD Descriere U.M. Cant. Pret unitar RON fara TVA Pret total RON fara TVA 1 1050650050 "Azotat de potasiu Producator Merck Potassium nitrate 99.995 Suprapur®. CAS No. 7757-79-1, EC Number 231-818-8, Purity (metallic) ≥ 99.995 % Assay (acidimetric) ≥ 99.0 % Chloride (Cl) ≤ 5 ppm Sulfate (SO₄) ≤ 30 ppm Al (Aluminium) ≤ 0.05 ppm Ba (Barium) ≤ 1.0 ppm Ca (Calcium) ≤ 0.1 ppm Cd (Cadmium) ≤ 0.005 ppm Ce (Cerium) ≤ 0.005 ppm Co (Cobalt) ≤ 0.005 ppm Cr (Chromium) ≤ 0.005 ppm Cs (Cesium) ≤ 5 ppm Cu (Copper) ≤ 0.005 ppm Eu (Europium) ≤ 0.005 ppm Fe (Iron) ≤ 0.05 ppm Hg (Mercury) ≤ 0.01 ppm La (Lanthanum) ≤ 0.005 ppm Li (Lithium) ≤ 0.2 ppm Mn (Manganese) ≤ 0.005 ppm Mg (Magnesium) ≤ 0.10 ppm Na (Sodium) ≤ 20 ppm Ni (Nickel) ≤ 0.005 ppm Pb (Lead) ≤ 0.005 ppm Rb (Rubidium) ≤ 30 ppm Sc (Scandium) ≤ 0.005 ppm Sm (Samarium) ≤ 0.005 ppm Sr (Strontium) ≤ 0.10 ppm Tl (Thallium) ≤ 0.005 ppm Y (Yttrium) ≤ 0.005 ppm Yb (Ytterbium) ≤ 0.005 ppm Zn (Zinc) ≤ 0.010 ppm" 50 G 1 407.68 407.68 2 1001360100 "Acid benzoic pentru analiza, EMSURE® ACS,Reag. Ph Eur Producator Merck, Assay (alkalimetric) 99.5 - 100.5 % Identity passes test Appearance of solution (50 g/l; Ethanol 96 %) clear and not more intense in color than reference solution B₉ Freezing point 122 - 123 °C Sulfate (SO₄) ≤ 0.002 % Heavy metals (as Pb) ≤ 0.0005 % Fe (Iron) ≤ 0.005 % Halogenated compounds (als Cl) ≤ 0.005 % Sulfur compounds (as S) ≤ 0.002 % In methanol insoluble m