Zinc Chloride 500g

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.

Potassium nitrate is a chemical compound with the chemical formula KNO₃. It is an ionic salt of potassium ions K⁺ and nitrate ions NO₃⁻, and is therefore an alkali metal nitrate. It occurs in nature as a mineral, niter. It is a source of nitrogen, from which it derives its name.

Formula: KNO3

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