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Square brackets around a species, meaning its concentration.
Also known as: Molar concentration notation, Square bracket concentration
Square brackets around a chemical formula denote its concentration in solution. The same brackets mean an equivalence class in algebra and a coordination complex in inorganic chemistry, so the surrounding context does the disambiguating.
Denote the concentration of a species in solution, written as square brackets around its formula.
Contexts: Laboratory
Share their form with the brackets enclosing a coordination complex, where they mark the extent of the complex rather than a concentration.
Contexts: Laboratory
Two square-cornered brackets, each an upright stroke with short inward arms, enclosing a chemical formula.