Gases

Atmosphere around us consists of mixture gases, mainly gas is Oxygen and Nitrogen, also contains of smaller amount of Water Vapor, Argon, Carbon Dioxide and rare gases

Composition	Symbol	Volume	Temperature Degree
Nitrogen	N2	78.084 %	-196°C
Oxygen	O2	20.947 %	-183°C
Argon	Ar	0.934 %	-186°C
Carbon Dioxide	CO2	0.033 %	-78°C
Neon	Ne	18.20 PPM	246°C
Helium	He	5.20 PPM	-269°C
Krypton	Kr	1.10 PPM	-152°C
Sulfur Dioxide	SO2	1.00 PPM	-10°C
Methane	CH4	2.00 PPM	-161.5°C
Hydrogen	H2	0.50 PPM	-253°C
Nitrous Oxide	N2O	0.50 PPM	-88°C
Xenon	Xe	0.09 PPM	-108°C
Ozone	O3	0.07 PPM	40°C
Nitrous Dioxide	NO2	0.02 PPM	38.5°C
Iodine	L2	0.01 PPM	184.3°C
Water Vapor	H2O	4.0 PPM	100°C
Carbon Monoxide	CO	Trace	-192°C
Ammonia	NH3	Trace	-35.5°C

Composition	Volume	Contaminates
Nitrogen	99.5 %	Argon + Oxygen
Oxygen	99.999 %	Nitrogen + Water + Argon
Argon	99.999 %	Nitrogen + Oxygen + Water + Acetylene
Carbon Dioxide	99.98 %	Trace of Air + Hydrocarbon
Hydrogen	99.5 %	Oxygen
Acetylene	99.999 %	Trace of Air [ Low Level NH3 ]

Liquefied Gas ...

Gases which can become liquids at normal temperatures when they are inside cylinders under pressure, they exist inside the cylinder in a liquid vapor balance or equilibrium, initially the cylinder is almost full of liquid and gas fills the space above the liquid, as gas is removed from the cylinder, enough liquid evaporates to replace it, keeping the pressure in the cylinder constant such as Ammonia, Propane, Nitrous Oxide and Carbon Dioxide

Non-liquefied Gas ...

These gases do not become liquid when they are compressed at normal temperatures, even at very high pressures such as Oxygen, Nitrogen, Helium and Argon.

Dissolved Gas ...

Acetylene is the only common dissolved gas, unstable chemically and can explode even at atmospheric pressure.

Flammable Gas ...

This can burn or explode under certain conditions and concentration of gas in air or contact with oxidizing gas or ignition source such as Acetylene, Hydrogen, Butane and Propane

Oxidizing Gas ...

Any gas include Oxygen higher than atmospheric concentrations above 23% : 25% can react rapidly and violently with combustible material such as Nitrous Oxide

Goudco Industries Gases

Gases