Chlorine

CAS RN: 7782-50-5

Storage Conditions

Keep container tightly closed in a dry and well-ventilated place. Contents under pressure. Storage class (TRGS 510): Gases.
Store in a cool, dry, well-ventilated location. Separate from combustible, organic, or easily oxidizable materials. Isolate from acetylene, ammonia, hydrogen, hydrocarbons, ether, turpentine, and finely divided metals. Outside or detached storage is preferred.
Permanent storage of chlorine is generally not recommended. However, at chlorine producing plants and barge shipping terminals, chlorine storage is an obvious necessity. Moderate amt may be handled in high strength tanks as a liquefied gas under pressure. The max amt that is considered safe under these conditions is about 450 tons. For larger quantities, low temp storage at atmosphere pressure is preferred in the interest of safety as well as economy. Chlorine gas evaporating from the low temp storage tank is reliquefied by a small refrigeration unit and recycled to storage. A standby absorber unit, usually a caustic soda soln tank, is also available to absorb evaporated chlorine in case of refrigeration unit failure. In small quantities, chlorine is stored and transported as a liquefied gas under pressure in 45.4, 68, and 909 kg steel cylinders equipped with fusible plug relief devices.
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