In chemistry, an alkali (/ ˈælkəlaɪ / ⓘ; from the Arabic word al-qāly, القالِي) is a basic salt of an alkali metal or an alkaline earth metal. An alkali can also be defined as a base that dissolves in water.

Alkali, any of the soluble hydroxides of the alkali metals—i.e., lithium, sodium, potassium, rubidium, and cesium. Alkalies are strong bases that turn litmus paper from red to blue; they …

The meaning of ALKALI is a soluble salt obtained from the ashes of plants and consisting largely of potassium or sodium carbonate; broadly : a substance (such as a hydroxide or carbonate of …

1 day ago · An alkali is a chemical substance that forms a solution with specific properties when dissolved in water. This concept is fundamental to chemistry, describing a chemical that acts …

Jan 1, 2025 · Learn what an alkali in chemistry is, its special properties, common examples, and the differences between an alkali and an acid.

When an alkali is dissolved in water, the solution formed is known as alkaline solution. Alkaline solutions can be made in the laboratory by vigorously shaking a solid alkali in water.

ALKALI definition: 1. a substance that has the opposite effect or chemical behaviour to an acid 2. a substance that…. Learn more.

In chemistry, an alkali (from Arabic: Al-Qaly القلي, القالي ) is a basic, ionic salt of an alkali metal or alkaline earth metal element. Alkalis are best known for being bases (compounds with pH …

6 days ago · The chemistry of the alkali metals depends on the size of the alkali metal cations. The stability of alkali metal compounds depends on the stabilization of their +1 cations.

Sea surface alkalinity (from the GLODAP climatology). Alkalinity (from Arabic: القلوية, romanized: al-qaly, lit. 'ashes of the saltwort ') [1] is the capacity of water to resist acidification. [2] It should …