An organic acid is an organic compound that is an acid. The most common example are the carboxylic acids whose acidity derives from a carboxyl group -COOH. Other groups can also cause a weak acidity: hydroxyl group -OH, -SH, enol group, -OSO₃H phenol group. An organic acid is any of various acids containing one or more carboncontaining radicals, such as acetic or formic acid, used in oil and gas well-stimulation treatments. Inhibited organic acids are much less reactive with metals than are HCl or mixtures of HCl and HF. For this very reason organic acids are used at high bottomhole temperatures or when long contact times between acid and pipe are needed. they cannot be stored at room temperature because they will spontanously decombust An organic compound is any member of a large class of chemical compounds whose molecules contain carbon, with the exception of carbides, carbonates, carbon oxides and gases containing carbon. ... It has been suggested that strong acid be merged into this article or section. ... Structure of a carboxylic acid The 3D structure of the carboxyl group A space-filling model of the carboxyl group Carboxylic acids are organic acids characterized by the presence of a carboxyl group, which has the formula -C(=O)-OH, usually written as -COOH. In general, the salts and anions... In chemistry, a carboxyl group is a functional group consisting of a carbon atom doubly bonded to an oxygen atom and single-bonded to a hydroxyl (-OH) group, typically written as -COOH: where R is a hydrogen or an organic group. ... Hydroxide is a functional group consisting of oxygen and hydrogen: -O−H It has a charge of 1-. The term hydroxyl group is used when the functional group -OH is counted as a substituent of an organic compound. ... Enol (or, more officially, but less commonly: alkenol) is an alkene with hydroxyl group on one of the carbon atoms of the double bond. ... Phenol, also known under an older name of carbolic acid, is a colorless crystalline solid with a typical sweet tarry odor. ...