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A dry media reaction or solid-state reaction or solventless reaction is a chemical reaction performed in the absence of a solvent. [1] Dry media reactions have been developed in the wake of developments in microwave chemistry, and are a part of green chemistry. [2] The drive for the development of dry media reactions in chemistry is:
Oleoresins are semi-solid extracts composed of resin and essential or fatty oil, obtained by evaporation of the solvents used for their production. [1] The oleoresin of conifers is known as crude turpentine or gum turpentine , which consists of oil of turpentine and rosin .
Rosin is added in small quantities to traditional linseed oil/sand gap fillers ("mastic"), used in building work. When mixed with waxes and oils, rosin is the main ingredient of mystic smoke , a gum which, when rubbed and suddenly stretched, appears to produce puffs of smoke from the fingertips.
Tall oil, also called liquid rosin or tallol, is a viscous yellow-black odorous liquid obtained as a by-product of the kraft process of wood pulp manufacture when pulping mainly coniferous trees. [ 1 ] [ 2 ] The name originated as an anglicization of the Swedish tallolja ('pine oil'). [ 3 ]
Most coatings have four basic components. These are the resin, solvent, pigment and additive systems [5] but the resin or binder is the key ingredient. Continuing environmental legislation in many countries along with geopolitics such as oil production are ensuring that chemists are increasingly turning to waterborne technology for paint/coatings and since resins or binders are the most ...
As the chief component of rosin, abietic acid is approved by the US FDA as a miscellaneous food additive. [8] 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 ...
By Nathan Layne (Reuters) -U.S. President-elect Donald Trump said in an interview aired on Sunday he will not try to replace Federal Reserve Chair Jerome Powell upon taking office in January.
Zallen tells in detail how turpentine (and rosin) are produced as naval stores. [4] Pine trees especially in North Carolina were tapped for sap which was doubly distilled to make turpentine and rosin (aka resin)–hence the name tar heels. The trees were scored with a ledge called a “box” to collect the sap.