Reactiv Ion exchange resin Roti®change 50 W x 4 100-200 mesh, analytical grade, H+-form , 250 g Solicita oferta 🢒 Vezi Detalii
Reactiv Potassium hydroxide solution (0.5 N) 0.5 mol/l - 0.5 N volum. stand. solution , 5 liter Solicita oferta 🢒 Vezi Detalii