Natriumdihydroxybenzoat R-R 0,1Mol/L Mit Bezug auf Nist 1 Liter Goji-Beeren (Wolfsbeere) Extrakt aus schwarzem Pfeffersamen (

Extrakt aus schwarzem Pfeffersamen ( Piper nigrum L

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Natriumdihydroxybenzoat R-R 0,1Mol/L Mit Bezug auf Nist 1 Liter Goji-Beeren (Wolfsbeere) Extrakt aus schwarzem Pfeffersamen (Di sodium EDTA 0. 1 mol l NIST referenced standard solution Technical data Catalog number: CHEM 818798127 Chemical formula: C10H14N2Na2O8 2H2O Molar mass: 372. 24 g mol CAS number: 139 33 3 EC number: 205 358 3 Nominal concentration: 0. 1 mol l Actual titer range: 0. 0996 0. 1004 mol l Reference: calibrated against NIST standard Physical and chemical properties Physical form: liquid Color: colorless Odor: odorless pH value: 4 5 (50 g l,H2O, 20C)