The chemical element chlorine is a gas with a strong, distinctive smell. It is poisonous to humans, but in small amounts it is used to make drinking water and water in swimming pools safe to use. Scientists use symbols to stand for the chemical elements. The symbol for chlorine is Cl. Chlorine deficiency symptoms. Symptoms of deficiency can vary across crop species, but similarities exist for how nutrient insufficiency impacts plant tissue color and appearance. Nutrient deficiencies are commonly associated with the physical location on the plant (i.e., whether the symptoms are primarily observed on older versus newly formed Step 4: Use 1-2 cups of solution per 9 L of water. Pour the chlorine bleach solution into the well. Step 5: Mix the well water and chlorine. Run water from a hose near the well. Step 6: Open each fixture (outdoor faucet, sink, shower, etc.) and run the water till you smell chlorine. Add more bleach if you don't smell chlorine. Chlorine is used in the manufacture of a wide range of consumer products, about two-thirds of them organic chemicals such as polyvinyl chloride (PVC), many intermediates for the production of plastics, and other end products which do not contain the element. Step 4: Use Bleach. If using pool chlorine (12% sodium hypochlorite) use half the amounts below. Storage Tank Gallons. Approx. parts per million of chlorine residual achieved by adding 5% chlorine bleach, in the amounts below. Numbers are rounded for easier measuring. 1 Tablespoon = 0.5 ounce. 1 PPM. 5 PPM. Shock chlorine. This chlorine is used especially when we open the pool after a period without using it. It acts quickly and reactivates the pool water getting ready for bathing again. Then, you have to let it act in the water and after about 2 hours, that's when we must adjust the pH between 7.2 and 7.6. 16FlFmX.

what is chlorine used for