Alkalis GK Reaktivy' Magnesium hydroxide , etc.

Alkalis are active chemical reagents that absorb not only water vapor from the air, but also molecules of carbon dioxide and sulfur dioxide, hydrogen sulfide, nitrogen dioxide. Therefore, hydroxides should be stored in an airtight container or, for example, air access to a vessel with alkali should be arranged through a chlorocalcium tube. Otherwise, the chemical reagent after being stored in air will be contaminated with carbonates, sulfates, sulfides, nitrates and nitrites.