The most common sulfonic acid is p-toluenesulfonic acid. A sulfonic acid (or sulphonic acid) refers to a member of the class of organosulfur compounds with the general formula R−S(=O) 2 −OH, where R is an organic alkyl or aryl group and the S(=O) 2 (OH) group a sulfonyl hydroxide. Sulfonic acids are similar to carboxylic acids and have the general structure of RSO 3 H. Sulfonic acids are very strong acids (pKa ~ -7). Mesylate exists as a solid, soluble (in water), and an extremely strong acidic compound (based on its pKa). Consequently, sulfonate anions make good leaving groups. Vapor-phase p- toluenesulfonic acid will react with photochemically-produced hydroxyl radicals resulting in an estimated half-life of 11.8 days (3,SRC).

Sulfonic acid esters were identified for the first time by IR spectra of solvent extracts of the Orgueil (CI1) meteorite (Studier et al., 1965), although misidentified silicon oil contamination was subsequently suggested as a source (Burlingame and Schnoes, 1966).
Organosulfonic acids are compounds containing the sulfonic acid group, which has the general structure RS(=O)2OH (R is not a hydrogen atom).

Consequently, sulfonate anions make good leaving groups. Table of Acids with Ka and pKa Values* CLAS Acid HA A-Ka pKa Acid Strength Conjugate Base Strength Hydroiodic HI I-Hydrobromic HBr Br-Perchloric HClO4 ClO4-Hydrochloric HCl Cl-Chloric HClO3 ClO3-Sulfuric (1) H2SO4 HSO4-Nitric HNO3 NO3-Strong acids completely dissociate in aq solution (Ka > 1, pKa … Related Questions. Irritating to mucous membranes, skin, and eyes. A Canadian journal describing the acidity of simple sulfonic acids M.A. Hexanesulfonic acid | C6H14O3S | CID 49937 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more. The conjugate bases of sulfonic acids are called sulfonate anions and are resonance stabilized. As a substituent, it is known as a sulfo group.A sulfonic acid can be thought of as sulfuric acid with one hydroxyl group replaced by an organic substituent. A mixture of … 12.1.12.1 Chemical Structures. Vinylsulfonic acid is the organosulfur compound with the formula CH 2 =CHSO 3 H. It is the simplest unsaturated sulfonic acid. The conjugate bases of sulfonic acids are called sulfonate anions and are resonance stabilized. 4-Hydroxybenzenesulfonic acid | C6H6O4S | CID 4765 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more. p-Toluenesulfonic acid is highly soluble in water, 620,000 mg/L(1), and therefore should be scavenged by rain(SRC). Phenolsulfonic acid, liquid appears as a yellowish liquid that becomes brown on exposure to air.Soluble in alcohol.