Liquid/Gaseous CO2

Specifications | | | | --- | --- | | **Component** | **Concentration** | | Assay | 99.7% v/v min. | | Moisture | 10 ppm w/w max. | | Taste and Odor in Water | No foreign taste or odor |

Specifications | | | | --- | --- | | **Component** | **Concentration** | | Assay | 99.9% v/v min. | | Moisture | 50 ppm v/v max. (20 ppm w/w max.) | | Ammonia | 2.5 ppm v/v max. | | Oxygen | 30 ppm v/v max. | | Oxides of Nitrogen (NO/NO2) | 2.5 ppm v/v max. each | | Non-volatile residue(particulates) | 10 ppm w/w max. | | Non-volatile organic residue (oil and grease) | 5 ppm w/w max. | | Total volatile hydrocarbons (calculated as methane) | 50 ppm v/v max. of which 20 ppm v/v max non-methane hydrocarbons. | | Acetaldehyde | 0.2 ppm v/v max. | | Benzene | 0.02 ppm v/v max. | | Carbon Monoxide | 10 ppm v/v max. | | Methanol | 10 ppm v/v max. | | Total Sulphur (as TS) ** | 0.1 ppm v/v max. | | Taste and Odor in Water | No foreign taste or odor |

Metal Industry Carbon dioxide is extensively used in the hardening of molding mixture of sand and liquid silicate binder, leading to reduction in production throughput and realization of cost savings through decreased fuel consumption. Manufacturing Carbon dioxide is used in the process of Metal Inert Gas (MIG) or Metal Active Gas (MAG) welding, to shield the weld surface to prevent the exposure of atmospheric gases such as Oxygen and Nitrogen. The inertness of Carbon dioxide helps in preventing porosity and eliminating substantial defects in the weld. Chemical and Pharmaceutical Applications Carbon Dioxide gas is used for the preparation of urea, methanol, inorganic / organic carbonates, polyurethanes and sodium salicylate. Carbon Dioxide is combined with epoxides to create plastics and polymers. Water Treatment Carbon dioxide is used in the purification of drinking water by acting as a neutralizing agent to treat alkaline water. It is also used in the treatment of water in the swimming pools. Carbon dioxide proves to be an effective alternative to mineral acids due to its ease of use, operational safety and in ensuring an ecologically safe environment. Fire Protection and Firefighting Carbon Dioxide, owing to its heavier density compared to air, is typically used in fire-extinguishers while blanketing a fire. Extinguishers typically contain pressurized liquid Carbon Dioxide which is used to put out low flammable liquid and electric fires. Beverage Industry Carbon dioxide is the key ingredient in the carbonation of fizzing beverages such as soft drinks, beer and soda water etc. Pest Control Carbon Dioxide, due to its property of not leaving any harmful residues, is extensively used in controlling atmosphere systems in silos and fumigation of aircraft. Oil Industry Carbon dioxide gas is used in enhanced oil recovery (EOR). EOR is a class of techniques for increasing the quantity of extracted crude oil from oil fields. Carbon dioxide is injected under high pressure into an oil reservoir, which pushes the oil through pipes, up to the surface of the ground. Carbon dioxide gas injections enhances oil recovery and reduces the viscosity of recovered oil.