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Chemical modification of wood at the molecular level has been used to improve its performance properties. Many chemical reaction systems for the modification of wood, especially those using various types of anhydrides , have been published; however, the reaction of wood with acetic anhydride has been the most studied.
Turpentine may alternatively be extracted from destructive distillation of pine wood, [3] such as shredded pine stumps, roots, and slash, using the light end of the heavy naphtha fraction (boiling between 90 and 115 °C or 195 and 240 °F) from a crude oil refinery. Such turpentine is called wood turpentine.
May 2012) (Learn how and when to remove this message) Calcium Lime Rust , more commonly known as CLR , is a household cleaning product used for dissolving stains, such as calcium , lime , and iron oxide deposits.
The commercial use of fatwood from stumps stemmed from the production of pitch and pine tar. In 1648, a company was formed in Sweden called Norrländska Tjärkompaniet (The Wood Tar Company of North Sweden), and was given exclusive export rights for pine tar by the King of Sweden. [2]
However, since it is safer and easier to remove such deposits using milder acids, the solution is more typically used in situations where high acidity facilitates cleaning instead of complicating it. For substrates with low tolerance for acidity, an alkaline solution consisting of ammonium hydroxide and hydrogen peroxide , known as base piranha ...
To clean the interior, use a vacuum attachment to remove crumbs, then wipe them out with the same rag. It's that simple. Make sure you dry your cabinets thoroughly after cleaning them.
A minor part is produced from the shortest cotton linters, normally second cut. These are washed mechanically and chemically to remove proteins, waxes, pectins and other polysaccharides. This is bleached to get the required brightness. Dissolving pulp from cellulose linters gives the purest cellulose and is used to manufacture acetate plastics ...
The chemical potential of sorbed water is a function of wood moisture content. Therefore, a gradient of wood moisture content (between surface and centre), or more specifically of water activity, is accompanied by a gradient of chemical potential under isothermal conditions. Moisture will redistribute itself throughout the wood until its ...