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Tiosulfat de sodiu 0.1N, Tiocianat de amoniu 0.1N
DA31017922 · published 2022-07-14 · completed 2022-07-14 · from Novachim Trading (Bucuresti)
311 leiawarded value
311 leiestimated value
33696300-8CPV code
The quantity is not published in the open data. The MS/SEAP export has only the title and value; quantity and unit price appear only in the purchase's SICAP record, which you can look up on e-licitatie.ro.
Description from SEAP
actor.............................................................. uncertainty ± 0,001 1 ml = 0,0248 g Na2S2O3·5H2O 1,000 ± 0,001 This volumetric solution was checked by means of potentiometric methods using Scharlau’s potassium iodate volumetric standard. Scharlau’s volumetric standards are directly traceable to the Standard Reference Materials from NIST (National Institute of Standards and Technology, USA). • Form: liquid • Density: ~ 1,004 g/cm3 • pH (20 ºC) ~ 9 - 10 , analytical chemistry, laboratory reagent. Specifications factor............................................................. uncertainty ± 0,001 1 ml = 0,007612 g NH4SCN 0,999 - 1,001 This volumetric solution was checked by means of potentiometric methods using a silver nitrate standard solution, that was also checked against Scharlau’s potassium chloride volumetric standard. Scharlau’s volumetric standards are directly traceable to the Standard Reference Materials from NIST (National Institute of Standards