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Resin acids occur in nature as tacky, yellowish gums consisting of several compounds. They are water-insoluble. A common resin acid is abietic acid. [1] Resin acids are used to produce soaps for diverse applications, but their use is being displaced increasingly by synthetic acids such as 2-ethylhexanoic acid or petroleum-derived naphthenic acids.
A resin is a solid or highly viscous liquid that can be converted into a polymer. [1] Resins may be biological or synthetic in origin, but are typically harvested from plants. Resins are mixtures of organic compounds, and predominantly terpenes. Well known resins include amber, hashish, frankincense, myrrh and the animal-derived resin, shellac.
Pimaric acid is a carboxylic acid that is classified as a resin acid. It is a major component of the rosin obtained from pine trees. [1] [2] When heated above 100 °C, pimaric acid converts to abietic acid, which it usually accompanies in mixtures like rosin. It is soluble in alcohols, acetone, and ethers. The compound is colorless, but almost ...
Rosin (/ ˈ r ɒ z ɪ n /), also known as colophony or Greek pitch (Latin: pix graeca), is a resinous material obtained from pine trees and other plants, mostly conifers.The primary components of rosin are diterpenoids, i.e., C 20 carboxylic acids.
Levopimaric acid is an abietane-type of diterpene resin acid. [1] It is a major constituent of pine oleoresin with the chemical formula of C 20 H 30 O 2 . In general, the abietene types of diterpene resin acid have various biological activities, such as antibacterial, cardiovascular and antioxidant.
Resin acid; S. Solid acid; T. Tetrabromoauric acid; Thiophosphoric acid; Trinitromethane This page was last edited on 5 August 2014, at 23:59 (UTC). Text is available ...
Resin soap is a mix of salts (usually sodium) of resin acids (usually mainly abietic acid). It is a yellow gelatinous pasty soap with use in bleaching and cleaning and as a compound of some varnishes. It also finds use in rubber industry as an emulsifier. Often the soap is pretreated with formaldehyde and maleic anhydride. [1]
By adding certain modifying resins, it is possible to produce thixotropic alkyds for decorative use such as non-drip paints. The latest alkyds are short oil resins in which the oil length is shortened by use of a polymeric chain stopper usually a monobasic acid such as benzoic acid or para-tert-butylbenzoic acid (Alkydal M 48). These have a ...