Carbon Dioxide In Beverages :: essays research papers

Carbon dioxide is a colorless gas, it has a wee but sharp odor and a slightly sour taste. severally molecule of carbon dioxide consists of one atom of carbon and two atoms of atomic number 8. Its chemical substance formula is carbon dioxide. Carbon Dioxide is well-nigh 1.5 times heavier than childs play. The specific volume at atmospheric pressure (101.3 kilopascals) and 70 F (21 C) is 8.74 ft3/lb. Under normal conditions it ashes stable, inert and non-toxic. To liquefy CO2 it must be under ccc pound per inch gage(psig) at 0 F or 838 psig at 70 F. Above the critical temperature of 87.9 F, at which all three phases gas, liquid, or solid may exist in equilibrium with one another, CO2 can exist only as a gas, no calculate what amount of pressure. When liquid CO2 is cooled to -69.9 F and the pressure drops to 60.4 psig it turns into dry methamphetamine snow. All CO2 existing in the atmosphere is estimated to be 720 x 109. Carbon dioxide makes up about 0.03 percent of the air. Al though that is a small amount, plants and animals think upon it for life. Green plants make their nutrients with it. They mix the carbon dioxide with water to make chicken feed by a process called photosynthesis. From the sugar, the plants then make starch and cellulose. Animals down the plants and in getting energy from the food, they produce carbon dioxide and return it to the air as they breathe. Research in Muana Loa and the South Pole showed that CO2 case in the atmosphere has increased from a presumed 250 ppm in the pre-industrial era to 315 ppm in 1958 and to 340 ppm in 1984. If this trend continues the CO2 concentration will reach about 600 ppm in the next century. Besides being produced by breathing, carbon dioxide is form when carbon-containing materials such as wood, coal, and petroleum products are burned with plenty of oxygen in and around the fire. Carbon Dioxide has found many uses in the industrial world. CO2 is not usually taken from the atmosphere because the c oncentration is so low. The industrial worlds CO2 is commercial produced.The CO2 employment plant, type CBU, is based on the combustion of oil or gas. The flue pipe gas normally contains sulfur dioxide, which is removed by water and club pop lye scrubbing. If combustion is based on sulfur free fuel the soda scrubber can be omitted.