Chlorosulfonic Acid

Heptanoic acid, also called enanthic acid, is an organic compound composed of a seven-carbon chain terminating in a carboxylic acid.

Adipic acid is the organic compound with the formula (CH2)4(COOH)2. From the industrial perspective, it is the most important dicarboxylic acid:

Hydrobromic acid is a strong acid formed by dissolving the diatomic molecule hydrogen bromide in water. "constant boiling" hydrobromic acid is an aqueous solution that distills at 124. 3 °C and contains 47. 6% hbr by weight.

Humic acid is one of the major components of humic substances[1] which are dark brown and major constituents of soil organic matter humus that contributes to soil chemical and physical quality and are also precursors of some fossil fuels.