Greencool refrigerants

Container Identification
Container contents should not be identified by colour alone
Containers are stencilled/labelled R 411B
In the case of mixtures containing R 411B the containers are stencilled with the names of all the mixture components together with their respective concentrations

Container valve
In some instances, container valves are protected from mechanical damage by a detachable dome cover and guard. Where provided this device must be correctly fitted when the container is not in use and when returning it to the distributor.

Control equipment
It is important to use the correct pressure/flow control equipment. The choice of suitable equipment is dependent on the gas purity and the user's operating requirements. Contact Distributor for advice

r> Inadequate Odour warning
Toxicity: Exposure limit (OES) 1000ppm (8hr TWA) 1250ppm (10minTWA) Vapour heavier than air: spreads along ground, collects in pits, trenches and sewers. Liquified gas in container under pressure of about 8bar (g).
Heating of container will cause pressure rise with risk of bursting. Decomposition at high temperatures yields toxic flourides and chlorides which are corrosive in the presence of moisture. Liquid on skin cab cause cold burns.

Safety Precautions
Containers in use should be in open air or in well ventilated room. Protect containers from sources of heat. Avoid smoking in presence of vapour.

Material Compatibility
Steel, brass, copper, aluminium, nickel and stainless steel are acceptable at normal temperatures and pressures and in dry conditions. At higher temperatures (above150^oC) R 411B may decompose to yield toxic products which are corrosive in the presence of moisture. Certain metals (e.g. brass, bronze and silver) can catalyse this decomposition. Magnesium alloys and zinc should not be used. Neoprene and isoprene are suitable. Equipment should be designed to withstand the maximum operating pressure, or the pressure developed during shutdown conditions at the highest ambient temperature experienced, whichever is the greater. Suitable pressure relief devices should be used.

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Leak Detection
Leaks may be detected using a suitable halide torch, electronic leak detection equipment or soap solution.

Toxicity and Symptoms
R 411B is considered non-toxic but will not support life. At high concentrations it acts as an asphyxiant by displacement of Oxygen. Symptoms include rapid and gasping respiration, rapid fatigue, nasuea, vomiting, cyanosis and may lead to loss of consciousness and death from anoxia.
High temperature decomposition products are toxic and acidic, but the irritant action of these products on the eyes, skin and mucous membranes will provide automatic and definite warning of their presence.

Emergency Action
Inhalation (asphyxiation conditions) Minimising personal risk, immediately remove victim to uncontaminated area. Ensure there is no obstruction to the airway. If breathing weak or stopped apply artificial ventilation, preferably using oxygen resuscitator. If suitable qualified and trained person available. Do not use adrenaline or similar cardiac stimulants. Summon ambulance. Keep warm and rested.

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Eye or Skin Contact (cold burns)
Irrigate affected area with tepid water for at least 15 minutes. Remove clothing from affected area carefully. Apply sterile dry dressing. Treat symptomatically as for thermal burns. Seek medical advice as soon as possible.

Leaking Container
If container is enclosed evacuate the area. Minimising risk of asphyxiation check container valve is closed. Move container to open space downwind and away from persons. Notify supplier. Prevent liquid from entering sewers, basements and work pits.

Action in Event of Fire
In general vacate area, call fire brigade. If unable to extinguish fir keep surrounding cylinders cool with water hosed from a safe distance. Inform fire brigade of potential danger of exploding and rocketing containers.

NOTE: Thermal decomposition products are toxic and corrosive

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Physical Properties (PURE)
Molecular weight 82	Vapour Pressure 8.0 bar(g)
Specific Volume 290ml/g	Boiling Point (1 atm) 41.6^{^o}C
Freezing Point (1 atm) -119^{^o}C	Density, Liquid (20^{^o}C) 1.13g/ml
Density Gas (20^{^o}C 1 atm) 3.44g/ml	Critical Temperature 96.5^{^o}C
Specific Gravity (air=1) 2.7	Colourless
Odourless in moderate concentrations	Above 20^{^o}C mild ethereal odour
Non Flammable

Safety details (quick links - click to jump to relevant paragraph)
Safety Warning	Safety Precautions	Material Compatibility
Leak Detection	Toxicity and Symptoms	Emergency Action
Eye or Skin Contact (cold burns)	Leaking Container	Action in Event of Fire


	*Safety Notes*