(organic chemistry) A clear colourless organic acid, CH₃COOH, formed by the bacterial oxidation of ethanol through acetic fermentation; it is used as a solvent and has very many industrial applications; it is the major acidic component of vinegar.

(inorganic chemistry) A corrosive colourless liquid, HBrO₃; it is a powerful oxidizing agent, and is used in the manufacture of pharmaceuticals and some dyes; it reacts with bases to form bromates.

(organic chemistry) A fatty acid, CH₃(CH₂)₈COOH, obtained from animal fats, and used in the manufacture of perfumes and flavours.

(organic chemistry) An organic compound, C₆H₁₂O₇, formed by oxidizing the aldehyde functional group of glucose into a carboxylic acid; used as a food additive; any glucosyl derivative of this compound

(chemistry) a solution of hydrogen iodide, HI, in water; it is a strong acid and reducing agent

(chemistry) an alternative name for hyposulfurous acid

(chemistry) A solution of hydrogen fluoride, HF, in water; it is a weak but very corrosive acid, used in the production of fluorine compounds, and in metallurgy.

(organic chemistry) The simplest carboxylic acid, HCOOH, a colourless, corrosive liquid with a sharp odour; it is present in the stings of ants, bees and nettles, and is prepared industrially by the oxidation of methanol or formaldehyde; it has some industrial uses, and its esters, the formates are used in perfumes.

(organic chemistry) A saturated fatty acid, CH₃(CH₂)₁₀COOH, occurring in coconut, palm and laurel oil; mostly used in making cosmetics and soaps

(chemistry) a solution of hydrogen cyanide, HCN, in water; a weak poisonous acid, used as a fumigant