Buffer Solution (di-sodium hydrogen phosphate/sodium hydroxide) traceable to SRM from NIST und PTB pH 12.00 (25°C) Certipur® | Sigma-Aldrich
di-Sodium hydrogen phosphate heptahydrate CAS 7782-85-6 | 106575
Boric Acid | H3BO3 | CID 7628 - PubChem
Boric acid, 1 kg, CAS No. 10043-35-3 | Reagents for the Determination of Nitrogen acc. to Kjeldahl | Determination of Nitrogen according to Kjeldahl | Analysis of Food | Inorganic & Analytical Reagents | Chemicals | Carl Roth - Germany
SOLVED: Which one of the following mixture does not act as a buffer solution? (a) Boric acid and borax (b) Sodium phosphate disodium hydrogen phosphate (c) Sodium propionate ând propionic acid (d)