by Properties:
Colorless gas, MP -111 OC, BP 10.7 OC, LEL 3%, UEL 100%, TLV 1 ppm.
• It is toxic, flammable and explosive.
• Fire and explosion hazard when exposed to heat or flame.
• To fight fire use CO2, DCP or alcohol foam.
• It can react with acids and bases, ammonia, copper, mercaptans, potassium, alcohol, AlCl3, Al2O3 etc.
• Vaporizes rapidly at ambient temperature, can cause cold burns and it is soluble in water.
• PVC gloves, aprons, gum boots, goggles or face shield and BA set are necessary to handle E.O
Safety Measures
• Avoid heat, flame and ignition source.
• Dilute spillage with plenty of water.
• Provide nitrogen blanketing and preferably keep storage tank refrigerated.
• Its pressure should be kept within operating limits.
• Equipment cleaning may be done with citric acid.
• Prevent back flow of any chemical into EO vessel.
• Storage tanks should be separated and at least 15 meter from plants and buildings.
• Collusion of vehicles should be prevented by fencing and barricade.
• Spillage should be directed to remote catch pit by an impermeable and sloppy floor.
• It polymerizes by iron rust, acids, bases and by chlorides of iron and other metals.
• Polymerization is highly exothermic and may result in explosion.
• MOC: SS or MS
• Insulation: mineral wool covered by galvanised or SS cladding.
• Gasket should be teflon coated.
• Level gauges are float differential type, torque tube type or magnetic float type.
• Compound pressure and vacuum gauge is preferable.
• Temperature gauges with high and low alarm is necessary.
• Double safety valves with 2 mtr discharge outlet pipe, flame arrester on outlets and nitrogen purging connections are required.
• To prevent reverse flow of E.O, NRV and double block and bleed valve system is required.
• In emergency, start water system or ciruclate chilled water through limpet coils or use fire water hydrant system.
• Pump temperature should not rise by 3 degree C. therefore it should be kept cool by recycle from delivery to suction.
• A centrifugal pump with mechanical seal is normally used.
• To avoid accident of EO road tankers, provide driver with TREM CARD, DCP extinguisher, PVC hand gloves and respirators.
