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Fullerene or C 60 is soccer-ball-shaped or I h with 12 pentagons and 20 hexagons. According to Euler's theorem these 12 pentagons are required for closure of the carbon network consisting of n hexagons and C 60 is the first stable fullerene because it is the smallest possible to obey this rule.
Finishing the piece will require fine abrasive paper, always backed by a sanding block. Choices of sealers and finishes that can be applied include ordinary varnish, special varnishes, polyurethane (either oil or water based), wax, and French polish. Sand shading is a process used to make a picture appear to be more three-dimensional.
In this method Merrifield resin is modified as a cyclopentadienyl resin and used as a solid phase against a mobile phase containing the complex mixture in a column chromatography operation. Only very stable fullerenes such as [Sc 3 N] +6 @[C 80] −6 pass through the column unreacted. In Ce 2 @C 80 the two metal atoms exhibit a non-bonded ...
70 has 10 additional atoms (shown in red) added to C 60 and a hemisphere rotated to fit. Another fairly common fullerene has empirical formula C 70, [30] but fullerenes with 72, 76, 84 and even up to 100 carbon atoms are commonly obtained. The smallest possible fullerene is the dodecahedral C 20. There are no fullerenes with 22 vertices. [31]
Epicuticular wax is a waxy coating which covers the outer surface of the plant cuticle in land plants. It may form a whitish film or bloom on leaves, fruits and other plant organs. Chemically, it consists of hydrophobic organic compounds, mainly straight-chain aliphatic hydrocarbons with or without a variety of substituted functional groups ...
The most important product of the Carnauba tree is the wax extracted from its leaves. [6] It can be used in floor, leather, furniture, car and shoe polish, and is used in the manufacture of carbon paper, candles, chalk, matches, soap and woodwork stains. [3] [7] It consists of myricyl cerotate and small quantities of cerotic acid and myricyl ...
The name sapele comes from that of the city of Sapele in Nigeria, where there is a preponderance of the tree.African Timber and Plywood (AT&P), a division of the United Africa Company, had a factory at this location where the wood, along with Triplochiton scleroxylon, Obeche, mahogany, and Khaya was processed into timber which was then exported from the Port of Sapele worldwide.
For sores and snakebites, the leaves and twigs are ground into a powder and mixed with animal grease and applied. The branches and leaves may be boiled which produces a liquid that can be used to bathe sore, swollen, or infected parts of the body. Huutah is also made into a tea to relieve cramps, ulcers, and chest ailments. [12]