Skip to main content

Carbon dioxide

The following information can be found, for example, in Klaus-D. Krinninger, Kohlendioxid - Kohlensäure - CO2

Production

EXTRACTION

  • Production
  • Natural volcanic CO₂ sources
  • Combustion of fossil fuels
  • Hydrogen production in refineries
  • etc.
READ MORE
Dry ice

Physics

With a density of 1.977 kg/m3 under standard conditions (1013 mbar, 0 °C), CO2 is around 1.5 times heavier than air and can therefore displace it when it escapes into deeper areas.

There is therefore a risk of suffocation from the colourless and odourless gas.

READ MORE
CO2 formula

CHEMISTRY

CO2 is used in the beverage industry, but also to neutralise alkaline waste water.

As the resulting carbonates are strong buffers and the carbonic acid is only a weak acid, largely neutral waste water is produced without complex controls. Due to its non-toxicity and environmental friendliness, CO2 is therefore well suited for such tasks.

READ MORE
Chloroplasts

PHYSIOLOGY

Due to its high density, escaping carbon dioxide can displace the air, especially near the ground, and therefore reach concentrations that can lead to breathing difficulties and subsequently to unconsciousness and even death from suffocation.

This already occurs with a proportion of 7 - 10 % in the air.

READ MORE
CO2 cylinders

TRANSPORT

Only the transport form of the pressurised gas cylinder is interesting for aquaristics. Liquid CO2 and dry ice are probably unsuitable for aquaristic purposes and are also oversized.

READ MORE
CO2/Environment

ENVIRONMENT

CO2 in the air is one of the foundations of life on earth. The only problem is the rapid increase in this trace gas since the beginning of industrialisation.

READ MORE
Table with formulas

DATA

All important properties of CO2 in tabular form.

READ MORE
Plant with O2 bubble

AQUARISTICS

READ MORE