Carbon Dioxide

Carbon dioxide is liquefied gas. In high concentrations may cause asphyxiation. Symptoms may include loss of mobility/consciousness. Victim may not be aware of asphyxiation. Low concentrations of CO2 cause increased respiration and headache.


Supply Options

SOC Supplies Carbon Dioxide:

  • Compressed in cylinder capacities 20kg and 30kg
  • In cylinder racks – 1×16, 1×30,1×60
  • CO2 liquid in duracylinders & cryogenic tanks

Manufacturing Method

Carbon dioxide gas is formed from the combination of two elements: carbon and oxygen. It is produced from the combustion of coal or hydrocarbons, the fermentation of liquids and the breathing of humans and animals. Found in small proportions in the atmosphere, it is assimilated by plants which in turn produce oxygen. CO2 gas has a slightly irritating odor, is colorless and heavier than air. It cannot sustain life. It freezes at -78.5°C to form carbon dioxide snow. In an aqueous solution it forms carbonic acid, which is too unstable to be easily isolated.


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Uses Of Carbon Dioxide

Industrial Use

  • Carbon dioxide is used in chemistry for controlling reactor temperatures
  • Carbon Dioxide is typically used for environment protection
  • It is used for red fume suppression during scrap and carbon charging, for nitrogen pick-up reduction during EAF tapping and for bottom stirring
  • In the non ferrous metallurgy, carbon dioxide is used for fume suppression during ladle transfer of matte (Cu/Ni production) or bullion (Zn/Pb production)
  • Small amount of liquid CO2 can be used in recycling of waters from Acid Mine Drainage (AMD)
  • The well known CO2 lasers are feed with some special grades of carbon dioxide
  • CO2 is also employed to neutralize alkaline effluents
  • It is used under supercritical conditions for purifying or dying polymer, animal or vegetal fibers

Medical Use

CO2 produces close-to-physiologic atmospheres for the operation of artificial organs. Carbon dioxide is used as a component in a mixture of oxygen or air as respiratory stimulant to promote deep breathing. It is also used for the surgical dilation by intra-abdominal insufflations.

Uses in Food Industry

CO2 is used in the food business in Carbonation of fizzing beverages such as soft drinks, mineral water or beer, Packaging of foodstuffs, its inerting and bacteriostatic properties being used successfully in nitrogen mixtures (Modified Atmosphere Packaging or MAP), to increase the shelf life of many food products. As cryogenic fluid in chilling or freezing operations or as dry ice for temperature control during the distribution of foodstuffs. Caffeine is removed from coffee using supercritical CO2


Physical & Chemical Properties:

Phase  Gas/Liquid
Category  Inert Gas
Chemical Name  CO2
Molecular Weight  44.01 g/mol
Melting Point  -56.6°C
Boiling Point  -78.5(s) °C
Critical Temperature  30°C
Relative Density ,Gas  1.52 (air = 1)
Relative Density ,Liquid  1.03 (water = 1)
Vapour Pressure  57.3Bar
Solubility [mg/l] in Water  2000 mg/l
Appearance (Color)  Colorless liquid
Odour  No odour warning properties
Toxic  No – Simple Asphyxiant
Flammability Range  Non Flammable.
Asphyxiant  Yes
Atmospheric %  Trace
UN Number  1013 – Gas 2187 – Liquid
Chemical Abstracts Service Number  124-38-9