- Ceimic Chemistry
#6034
Tóg 20 ml den tuaslagán forshnámhach agus coigeartaigh an pH go 6.5 le tuaslagán hiodrocsaíd sóidiam 1 N (4.8) agus an tuaslagán bróimicréasóil chorcra (4.9) mar tháscaire.
Take 20 m1 of the supernatant solution and adjust the pH to 6.5 by means of 1 N sodium hydroxide solution (4.8) with the bromocresol purple solution (4.9) as indicator.