Management of Hazardous Chemicals

1. Management of Hazardous Chemicals chlorine

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

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

4. 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.

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

6. 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

7. 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

8. 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 .

9. 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.

10. 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.

11. 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

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

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

14. 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.

15. 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.

16. 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.

17. 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.

18. 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.

19. 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

20. 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