Safety Aspects of Carbon dioxide
Safety Aspects of Carbon dioxide Presence of large quantity of CO2 replace oxygen which is required to support life.since it is heavier than air, it accumulated at the lower level.The maximum allowable concentration in working atmosphere for prolonged exposure is 5000 ppm. While entering in confined spaces containing or suspected to contain high carbon dioxide concentration, oxygen – breathing apparatus should be used. Air sample analysis should be performed frequently to ensure that the presence of the gas is within the safe limit. The atmospheric carbon dioxide concentration is 0.03 %. Carbon dioxide in atmosphere Carbon dioxide is a colorless gas with a density about 60% higher than that of dry air. Carbon dioxide consists of a carbon atom covalently double bonded to two oxygen atoms. It occurs naturally in Earth's atmosphere as a trace gas. Property Chemical formula CO2 Appearance Colorless gas Molar mass