In most Such an oscillation valve was first used by Fleming as a receiver for wireless telegraph purposes in … This supports a local community as well as being a way to reduce carbon footprint concerns. When carbon dioxide is passed into this solution the whole of the added oxide, and even part of the oxide of the normal salt, is precipitated as a basic carbonate chemically similar, but not quite equivalent as a pigment, to white lead. Calcium cyanamide has assumed importance in agriculture since the discovery of its economic production in the electric furnace, wherein calcium carbide takes up nitrogen from the atmosphere to form the cyanamide with the simultaneous liberation of carbon. The Kassner process for the manufacture of oxygen depends upon the formation of calcium plumbate, Ca2Pb04, by heating a mixture of lime and litharge in a current of air, decomposing this substance into calcium carbonate and lead dioxide by heating in a current of carbon dioxide, and then decomposing these compounds with the evolution of carbon dioxide and oxygen by raising the temperature. For rails of basic open-hearth steel, which is rapidly ousting Bessemer steel, the Civil Engineers' specifications allowed from o 65 to 0-75% of carbon with 0-05% of phosphorus, while the specifications of the American Railway Engineering and Maintenance of Way Association provided for a range of 0.75 to 0-85% of carbon, with a maximum of 0.03% of phosphorus. The heavy traffic tinctures the air with, 11. Atomic number 6. Blue Carbon coastal ecosystems include mangrove forests, seagrass meadows and saltwater marshlands, which serve as carbon sinks. At once the attractive force of the solenoid on the iron cylinder was automatically reduced, and the falling of the latter caused the negative carbon to rise, starting an arc between it and the metal in the crucible. Horizontal channels were cut on opposite walls, through which the carbon poles or electrodes were passed into the upper part of the cavity. These usually include reverse osmosis units and some activated carbon filters. The separation of carbon atoms united by single affinities in this manner at the time the observation was made was altogether without precedent. 5. It's difficult to see carbon in a sentence. In the United States a committee of the American Society of Civil Engineers, appointed to consider the question of rail manufacture in consequence of an increase in the number of rail-failures, issued an interim report in 1907 in which it suggested a range of carbon from 0-55 to 0-65% for the heaviest sections of Bessemer steel flange rails, with a phosphorus maximum of 0.085%; while the specifications of the American Society for Testing Materials, current at the same period, put the carbon limits at o 45 to 0-55%, and the phosphorus limit at o io. Translations of the phrase CARBON UNIT from english to russian and examples of the use of "CARBON UNIT" in a sentence with their translations: ...opportunity to sell its saved carbon … A sheet iron case is then placed within the furnace, and the space between it and the walls rammed with limed charcoal; the interior is filled with fragments of the iron or copper to be alloyed, mixed with alumina and coarse charcoal, broken pieces of carbon being placed in position to connect the electrodes. They are sometimes the cause of underground fires, and they are always a source of danger when by any chance the ventilating current becomes reversed, in which case the products of combustion, containing large quantities of carbon dioxide, will be drawn into the mine to the serious danger of the men. When heated in air for many hours it decomposes, yielding carbon dioxide, phenol and xanthone. TRIAZINES, in organic chemistry, a series of cyclic compounds, containing a ring system composed of three carbon and three nitrogen atoms. Carbon (C), nonmetallic chemical element in Group 14 (IVa) of the periodic table. Manasse (German patent 73,279) prepared an intimate mixture of phenol and potassium carbonate, which is then heated in a closed vessel with carbon dioxide, best at 130 -160 C. The Chemische Fabrik vorm. On oxidation with potassium permanganate it gives homovanillin, vanillin, &c.; with chromic acid in acetic acid solution it is converted into carbon dioxide and acetic acid, whilst nitric acid oxidizes it to oxalic acid. Use "carbon" in a sentence. the carbon rod through which current is conducted between the electrode holder and the arc in carbon arc lighting or welding. The facts suggested that the six carbon atoms formed a chain, and that a hydroxy group was attached to five of them, for it is very rare for two hydroxy groups to be attached to the same carbon atom. Discharges between the carbon blocks tend to throw off particles of carbon from them. Operating in a current of carbon dioxide facilitates the process by preventing overheating. Carbon, chemical element that forms more compounds than all the other elements combined. : In this world, the idea that the personal is political was not about one's carbon footprint or concerns about eating meat or using pesticides in the garden. A thin film of carbon residue is left, forming a silhouette of the original organism called a carbon film. To the south-east of this basin are the greatest mountain masses of the state; lofty and rugged ranges radiate in all directions, and in many instances rise to heights of 10,000-11,000 ft., the highest peak in the state being Granite Peak (12,834 ft.) in Carbon county. Within this cylinder is contained a mixture of broken carbon and peroxide of manganese. Definition of Emission the act of releasing or sending out something Examples of Emission in a sentence The mechanic is checking the engine to identify the source of the emission coming from my car. The inactive variety is known as paramandelic acid. Never mind the carbon footprint that will leave on the otherwise eco-friendly Westside. The first chemical change suggested is an interaction between carbon dioxide and water, under the influence of light acting through chlorophyll, which leads to the simultaneous formation of formaldehyde and hydrogen peroxide. Carbon is an element; you can get nothing out of carbon but carbon. The carbon cycle is one of the most important of all biological processes. The skeletons of these types are (the carbon atoms are omitted for brevity): We have previously referred to the condensation of heterocyclic ring systems containing two vicinal carbon atoms with benzene, naphthalene and other nuclei. This artifice is specially valuable when the substance decomposes or volatilizes in a warm current of carbon dioxide. As bacteria decomposed it they released co into the air: 4. The isotherm for co at K shows that the gas does not liquefy whatever the pressure or volume at this temperature: 5. We frequently find the expression used, the assimilation of carbon dioxide, or of nitrogen. He applied himself more particularly to the oxygen compounds, and determined with a fair degree of accuracy the ratio of carbon to oxygen in carbon dioxide, but his values for the ratio of hydrogen to oxygen in water, and of phosphorus to oxygen in phosphoric acid, are only approximate; he introduced no new methods either for the estimation or separation of the metals. In other cases carbon fragments are mixed throughout the charge, as in E.H. Many of the earlier-known silicon alkyl compounds were isolated by Friedel and Crafts and by Ladenburg, the method adopted consisting in the interaction of the zinc alkyl compounds with silicon halides or esters of silicic acids. When heated with glycerin to ioo C. it yields formic acid and carbon dioxide; above this temperature, allyl alcohol is formed. PYRIMIDINES, METADIAZINES or Miazines, in organic chemistry, a series of heterocyclic compounds containing a ring complex, composed of four carbon atoms and two nitrogen atoms, the nitrogen atoms being in the meta-position. Carbon dioxide consists of carbon and oxygen. 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