Tri-Sodium Othophosphate 500g

Distilled water is water that has been boiled into vapor and condensed back into liquid in a separate container.

Isopropyl alcohol/propan-2-ol is a compound with the chemical formula CH₃CHOHCH₃. It is a colorless, flammable chemical compound with a strong odor.

While litmus paper may be used to determine whether an aqueous solution is an acid or a base, it not good for estimating the pH value of the liquid.