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Ethylene (C2H4) |
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 A
flammable, colorless liquefied gas with a slightly sweet
odor. Shipped as a liquefied gas under its own vapor
pressure (1,200 psig @ 70°F).
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Molecular Weight:
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28.05
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Safety Data
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Vapor Pressure Data
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Specific Volume:
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13.716cf/lb@NTP
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Nontoxic-Simple Asphyxiant
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Temp (Deg. F)
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Pressure (psia)
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Boiling Point:
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-154.8°F(-103.8°C)@1atm
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32
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611.5
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CAS No.:
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75-85-1
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70
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758.5
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Hazards:
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Flammability, Suffocation, weak anesthetic at
high concentrations.
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Flammable Limits:
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2.7-36% in Air
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DOT Label:
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Red, Flammable Gas
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UN Number:
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UN 1962
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DOT Class:
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2.1
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Cylinder:
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Steel Alloy
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Cylinder
Size
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DOT
Specification
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Cylinder
Dimension
(in.)
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Average
Tare Weight
(lbs)
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Average
Internal Volume
(ft3)(L)
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Contents
(lbs)
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200
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3AA2265
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9x51
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119
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1.55 (43.9)
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30
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80
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3AA2015
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7x33
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57
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0.56 (15.9)
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11
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GRADE
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CP
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ULTRA
HIGH PURITY
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RESEARCH
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Critical Assay
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99.5%
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99.9%
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99.999%
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Nitrogen
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80 ppm
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< 40 ppm
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< 2 ppm
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Oxygen
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20 ppm
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< 10 ppm
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< 1 ppm
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Carbon Dioxide
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50 ppm
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< 25 ppm
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< 1 ppm
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Carbon Monoxide
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10 ppm
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< 5 ppm
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< 1 ppm
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Methane
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500 ppm
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< 50 ppm
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< 1 ppm
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Ethane
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1000 ppm
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< 500 ppm
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< 3 ppm
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Acetylene
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10 ppm
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< 5 ppm
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< 1 ppm
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Moisture
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10 ppm
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< 5 ppm
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< 1 ppm
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Valve Material
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Brass
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Brass
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Brass
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CGA Connection
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350
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350
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350
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Additional Information:
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Ethylene is a colorless, flammable gas with
a slightly sweet odor. Ethylene poses an immediate
fire hazard when mixed with air. The gas may spread
long distances. Distant ignition and flash back
are possible. This gas acts as a simple asphyxiant
and presents a significant health hazard by displacing
the oxygen in the atmosphere. High concentrations
that can cause rapid suffocation are within the
falmmable range and must not be entered. Flame
or high temperature impinging on a localized area
of the cylinder of this product can cause the
cylinder to burst or elevated temperatures. Provide
adequate fire protection during emergency response
situations, and wear personal protective equipment
to protect against potential health hazards posed
by Ethylene. Do not attempt to extinguish fire
without stopping the flow of the gas.
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