A carboxyl or carboxylic group is a functional group consisting of a carbon atom doubly bonded to an oxygen atom and single-bonded to a hydroxyl (-OH) group. It is the univalent acid radical (-COOH or -CO₂H): In ecology functional groups are collections of organisms based on morphological, physiological, behavioral, biochemical, or environmental responses or on trophic criteria. ... General Name, Symbol, Number Carbon, C, 6 Chemical series Nonmetals Group, Period, Block 14 (IVA), 2, p Density, Hardness 2267 kg/m3 0. ... Properties For alternative meanings see atom (disambiguation). ... In chemistry, a chemical bond is the force which holds together atoms in molecules or crystals. ... General Name, Symbol, Number Oxygen, O, 8 Chemical series nonmetals Group, Period, Block 16 (VIA), 2, p Density, Hardness 1. ... The term univalent or monovalent describes atoms with one valence electron, ie a valency of 1. ... An acid (often represented by the generic formula AH) is typically a water-soluble, sour-tasting chemical compound. ...

Structure of carboxylic acid, created with ChemSketch This image is ineligible for copyright and therefore in the public domain, because it consists entirely of information that is common property and contains no original authorship. ...

where R is a hydrogen or an organic group. General Name, Symbol, Number Hydrogen, H, 1 Chemical series nonmetals Group, Period, Block 1 (IA), 1 , s Density, Hardness 0. ...

Carboxyl groups are characteristic constituents of more complex functional groups such as carboxylic acids and amides. They are present in most organic acids, this making them biodegradable. They are structurally similar to the carbonyl group. Structure of a carboxylic acid Carboxylic acids, also known as alkanoic acids, are organic acids characterized by the presence of a carboxyl group and have the general chemical formula R-C(=O)-OH, also written as R-COOH, where R is a hydrogen or an alkyl group. ... In chemistry, the term amide has several meanings. ... An organic acid is an organic compound that is an acid. ... Biodegradation is the decomposition of material by microorganisms. ... In chemistry, a carbonyl group is a functional group composed of an atom of carbon double-bonded to an atom of oxygen. ...

The C=O stretch of carboxyl groups can be identified spectroscopically by a sharp peak in the infrared between 1700 and 2100 cm^-1. Spectroscopy is the study of spectra, ie. ... Image of a small dog taken in mid-infrared (thermal) light (false color) Infrared (IR) radiation is electromagnetic radiation of a wavelength longer than visible light, but shorter than microwave radiation. ...