The measure of a major arc is C10-448A-888484be x Â° $%# greater than 180, and equal to 360 minus the measure of the minor arc with the same endpoints. m âADB = 360 - mAB â = 360 - x A semicircle is an arc with endpoints that lie on a diameter.
Process Chemicals Corrosion. Chlorine. The flow rate of liquid chlorine through carbon steel pipework is restricted to 2 m/s to avoid removing the ferric chloride coating on the pipe surface which protects against erosion / corrosion of the carbon steel. Wet chlorine gas corrodes mild steel.
Do not expose sodium metal to water! The reaction of sodium and water produces hydrogen gas and heat, which is not a good combination! Sodium must be stored under mineral oil, or some other high-molecular weight hydrocarbon. Chlorine gas is toxic, and extremely irritating to the eyes and mucous membranes. This reaction evolves a great deal of heat energy; make sure that the flask has no cracks in it.