Pachet reactivi de laborator conform anunt ADV1095258: 1048730250 "Fosfat diacid de potasiu pentru analiza, EMSURE® ISO, Producator Merck 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 % Sulfate (SO₄) ≤ 0.003 % Total nitrogen (N) ≤ 0.001 % Heavy metals (as Pb) ≤ 0.0010 % As (Arsenic) ≤ 0.0002 % Cu (Coppe...

Pachet reactivi de laborator conform anunt ADV1095258: 1048730250 "Fosfat diacid de potasiu pentru analiza, EMSURE® ISO, Producator Merck 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 % Sulfate (SO₄) ≤ 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 (110 °C) ≤ 0.2 % Loss on drying (130 °C) ≤ 0.2 %" 250 G 4 88.80 1060780100 "Rosu de metil - sare sodiu (C.I. 13020) indicator solubil in apa ACS, Producator Merck ( 2-[(4-Dimethylamino)phenylazo]benzoic acid sodium salt, 4-(Dimethylamino)azobenzene-1,2'-carboxylic acidsodium salt,Transition range pH 4.5 - pH 6.2 red violet - brownish yellow Appearance of solution passes test Loss on drying (110 °C) ≤ 5 Transition range (according to ACS) passes test" 100 G 1 1,680.00 1099430001 Calciu - solutie standard 1000 mg Ca, (CaCl₂ in 6.5% HCl) Titrisol®, Producator Merck FIOLA 2 121.00 1197920100 Solutie standard de nichel Ni(NO₃)₂ in HNO₃ 0.5 mol/l, trasabila NIST; 1000 mg/l Ni Certipur®. Producator Merck Millipore 100 ML 1 94.10 18602-2ML-F Mineral oil standard mixture Type A and B for EN ISO 9377-2 analytical standard, ~10 mg/mL in heptane 2 ML 1 287.535

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