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Carbon dioxide (CO2)
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Basic info:
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English name
Carbon dioxide
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CAS
124-38-9
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Hazard info
1013(liquefied), 2187 (refrigerated liquid)
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Transport
"ADR Class 2, 2A"
Properties:
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Molar mass
44.01
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Gas density at 15°С/1,013 bar
1.872
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Boiling point at 1,013 bar
-56.56
Options
- single-piece
5 l10 l40 l — 150 bar
50 l (200) — 200 bar
- Cylinder(s) 5 l, 10 l, 40 l, 50 l and monoblocks ( DIN 9 (G 3/4)) DIN 9 (G 3/4)
Stainless steel single-stage reducer for clean gases
Specs
| Carbon dioxide 3.0 | Carbon dioxide 4.5 | Carbon dioxide 5.0 | ||
|---|---|---|---|---|
| Composition | ||||
| CO2 | % | ≥99,9 | ≥99,995 | ≥99,999 |
| Admixture | ||||
| O2 | ppmv | <200 | <15 | <0,5 |
| N2 | ppmv | <700 | <25 | <1,5 |
| H2O | ppmv | <20 | <5 | <0,5 |
| CnHm | ppmv | <10 | <5 | <0,01 |
| CO | ppmv | <10 | <1 | <0,01 |
Carbon dioxide, carbonic acid is an organic compound, a gas that is familiar to everyone.
In addition, carbon dioxide is now obtained as a by-product from the recovery of pure gases - nitrogen, oxygen and argon.
- Colorless and odorless gas
- Non-flammable and non-toxic
- Heavier than air
- Soluble in water
- Turns into “dry ice” when strongly cooled
Carbon dioxide has found application in virtually all sectors of modern industry:
- As a neutralizer for pH level control in cement analysis.
- As a medium for supercritical fluid extraction (SFE) in sample preparation and as a carrier gas for analytical and preparative supercritical chromatography (SFC).
- For chemical deposition of silicon dioxide from the vapor phase.
- As a foaming agent.
- In mixtures with ethylene oxide for sterilization.
- For drying penicillin and blood samples in medicine.
- As a cooling agent in some mechanical cooling systems.
- In aerosol packaging.
- In mixtures for laser and welding operations.
- In medicine.
- In food production.
- For fire extinguishing.
Let's consider the applications of CO2 in more detail. Carbon dioxide is used for maximum weld strength in metal welding; this gas is also used in casting (it is blown through molds).
Due to its property of suppressing open flames, carbon dioxide is used in the production of fire-fighting equipment (fire extinguishers).
CO2 is used in medicine. For example, in surgery. Minimally invasive (laparoscopic) procedures have become possible largely due to the use of medical carbon dioxide. Additionally, carbon dioxide is used for diagnostic and resuscitation purposes.
In the food industry, carbon dioxide is used to preserve the freshness of products, and also in the production of alcoholic and non-alcoholic carbonated beverages.
In agriculture, carbon dioxide is necessary for field cultivation, as well as for fertilizing plants to stimulate their rapid growth.
Oil and Gas 
Chemical industry 
Power industry 
Astronautics 
Ecology 
Medicine 
Food industry 
Nanotechnologies 
Construction 
Metallurgy CO2 is transported and stored in steel cylinders in liquid form. The containers must be labeled with the substance name, manufacturer, batch number and series, release date, and information about GOST.
Transporting CO2 gas is classified as hazard class 2. When transporting carbon dioxide in cylinders, safety measures must be followed to avoid impacts to the gas containers and leaks. When transporting carbon dioxide, cylinders with liquefied gas must be protected from excessive heating.
An increase in the concentration of carbon dioxide in inhaled air adversely affects human health: it causes general weakness, decreased concentration and productivity, and drowsiness. High levels of carbon dioxide are considered hazardous to health.
Can be transported by
- train
- truck
- ship