Search results
Results from the WOW.Com Content Network
Wood also contains sulfur, chlorine, silicon, phosphorus, and other elements in small quantity. Aside from water, wood has three main components. Cellulose, a crystalline polymer derived from glucose, constitutes about 41–43%. Next in abundance is hemicellulose, which is around 20% in deciduous trees but near 30% in conifers.
Pages in category "Glass compositions" ... Wood's glass This page was last edited on 16 January 2021, at 06:19 (UTC). Text is available under the Creative ...
Cement bonded composites are made of hydrated cement paste that binds wood, particles, or fibers to make pre-cast building components. Various fiberous materials, including paper, fiberglass, and carbon-fiber have been used as binders. Wood and natural fibers are composed of various soluble organic compounds like carbohydrates, glycosides and ...
Aluminium phosphate is used in the manufacture of glass, ceramic, pulp and paper products, cosmetics, paints, varnishes, and in dental cement. [167] Aluminium hydroxide is used as an antacid, and mordant; it is used also in water purification, the manufacture of glass and ceramics, and in the waterproofing of fabrics. [168] [169]
Wood's metal. Wood's metal, also known as Lipowitz's alloy or by the commercial names Cerrobend, Bendalloy, Pewtalloy and MCP 158, is a metal alloy that is useful for soldering and making custom metal parts, but its fumes are toxic, as well as being toxic on skin exposure. The alloy is named for Barnabas Wood, who invented and patented the ...
The oxidized metal elements that constitute wood ash are mostly considered alkaline. For example, ash collected from wood boilers is composed of [6] 17–33% calcium in the form of calcium oxide (CaO) 2–6% potassium in the form of potassium oxide (K 2 O) 2.5–4.6% magnesium in the form of magnesium oxide (MgO)
However, "wood solids" is a term of art. The "wood solids" are simply plywood, or another engineered wood product. In the US, the Federal Trade Commission doesn't allow furniture to be advertised as made of "solid wood" unless all exposed surfaces are in fact solid wood. [1] [2] Solid wood is expensive. Engineered wood (often advertised as wood ...
The wood moisture content is above 25% on a dry-weight basis; The environment is sufficiently warm; Oxygen (O 2) is present; Wood with less than 25% moisture (dry weight basis) can remain free of decay for centuries. Similarly, wood submerged in water may not be attacked by fungi if the amount of oxygen is inadequate. Fungi lumber/timber ...