Search results
Results from the WOW.Com Content Network
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.
Structure of abietic acid, a component of rosin. Rosin is the principal component has been used for centuries as a flux for soldering. (Abietic acid in the flux removes oxidation from the surfaces of metals, increasing their ability to bond with the liquified solder.) Is approved by the US FDA as a miscellaneous food additive. [7]
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 ...
This page was last edited on 15 November 2022, at 22:54 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.
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 ...
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 ...
Abietic acid is considered a "nonhazardous natural substance" in tall oil ("liquid rosin"). [5] In the U.S., abietic acid is listed in the inventory of the Toxic Substances Control Act. Abietic acid is the primary irritant in pine wood and resin. As a contact allergen [9] it is the cause of abietic acid dermatitis.