Reactiv Cobalt(II) sulphate heptahydrate min. 97,5 %, extra pure , 100 g Solicita oferta 🢒 Vezi Detalii
Reactiv Silica gel orange 2-5 mm, with colour indicator, pearls , 1 kg Solicita oferta 🢒 Vezi Detalii
Reactiv Phenolphthalein indicator solution 1 % in ethanol 90 %, denatured , 250 ml Solicita oferta 🢒 Vezi Detalii