Management of Hazardous Chemicals chlorine

Management of Haz.Chemicals Every day lot of chemicals are being handled Some chemicals are safe,some are toxic,corrosive and even poisonous

Management of Haz. Chemicals Chlorine and Toluene are the topics of today’s discussion

Chlorine At normal pressure it is gas but under pressure it is liquid. Gaseous chlorine is yellow but liquid chlorine is amber color. It is pungent and suffocating. It is slightly soluble in water. Wet chlorine is very corrosive.

Chlorine Chlorine has a vapour density 2.5 so it is heavier than air.Aways remain at ground level in case of leakage.

Hazard Short term exposure limit is 1ppm Under this limit one can work safely up to 15 minutes with out any irritation,chronic tissue change and any other problem. Fatal dose is 1000ppm

Leakage Exact leakage point of chlorine can be detected by ammonia torch. Liquid chlorine leakage should be converted to gaseous leakage by turning the cylinder. One volume of liquid chlorine gives 460 volume of gaseous chlorine. Leakage should always be attended by using PPE

Leakage Leakage can be detected by electronic leakage censor device. Censor should be fixed near the chlorine tonners or chlorine distributing station. Censor should be connected through hooter.

Leakage Always approach the leak point against the air direction. In no case water to be sprayed on the chlorine leak. In case of large leak absorb the chlorine in caustic solution or soda solution or lime solution scrubber.

Health Hazard Chlorine is very corrosive and reacts with body moisture to form corrosive acid. Cause respiratory injury ranging from irritation to death. Up to 0.5ppm no long term affect. 1-3ppm can be recognised by nose and preventive can be taken immediately 100ppm can cause lethal damage 1000ppm danger to life.

Reactivity Chlorine has great affinity for Hydrogen Reacts with water to produce toxic and corrosive solution of HCl and HOCl Reacts with NH3 in the cold to produce extremely explosive Nitrogen Tri Chloride Reacts with many metals and nonmetals to form the salt. Reacts with Organic Compound to form Chlorinated derivative

Packing Liquid Chlorine is packed in100 kg Cylinder or 900 kg tonner. 90% filling capacity is used for packing.

Personnel Protective Equipments Self contained breathing apparatus. Positive pressure(blower) hose mask. Industrial canister type mask. Protective clothing.

First Aid Shift the affected person to open place. Apply oxygen immediately. Remove the contaminated clothing. Plenty of water to be used for eye and skin washing. Call a doctor if the victim is uncomfortable.

Employees Selection and Training Chlorine leakage should be handled by trained personnel only. Training should be given to competent person only, Training and awareness programm to be conducted frequently.

Practice Being Adopted In Lanxess Huge quantity of chlorine (8-10)tonnes per hour is used. This quantity can not be handled in tonners. Therefore chlorine is being transported through pipeline. Proper CSGV are fitted at various points. Chlorine measuring meter is fitted with analysis parameters.

Practice Being Adopted In Lanxess Chlorine gas holder is installed with safety valve. Safety valves blows off if pressure goes above 5 kg/cm2. Vent of safety valve is connected with the caustic scrubber solution. Chlorine leakage detectors are fitted in all the required places and in 4 directions.

Practice Being Adopted In Lanxess Chlorine detector hooters are also installed. All the detectors are connected to the monitors also. Chlorine monitoring records are kept for three months atleast. Caustic solution scrubber through suction blower is always ready to handle any leakage of chlorine.

Practice Being Adopted In Lanxess Emergency kit is always kept ready. Kit mainly consists of gaskets,clamps,hoods,studs,tie rods,spanners,chains,pins and wooden pegs. Pipe lines are regularly checked for wall thickness and proper records are maintained

Practice Being Adopted In Lanxess Training is regular practice in lanxess. In house Mock drills are done quarterly. Off sight mock drill is also conducted once in a year. Records of all the trainings are maintained and considered in annual appraisal. Annual health check is done by a competent doctor