Bunsen absorption coefficient
The Bunsen absorption coefficient , also Bunsen coefficient or Bunsen absorption coefficient ( symbol : or ), is a dimensionless number of physical chemistry named after the chemist Robert Wilhelm Bunsen . It indicates which volume V G of a gas is absorbed in the volume V L of another substance at a partial pressure that corresponds to the standard pressure in the physical standard state . The Bunsen coefficient is of particular importance when determining the gas dissolving capacity of liquids as a function of the operating pressure , for example with fluids in hydraulics .
The following applies in the standard state:
If the partial pressure deviates from the standard pressure, Dalton's law applies :
With
- - Volume of the dissolved gas
- - volume of the solution
- - atmospheric pressure (standard pressure)
- - absolute pressure (partial pressure deviating from standard pressure)
liquid | Bun coefficient |
---|---|
water | 2% |
mineral oil | 8-10% |
Polyglycol water solution | 3-4% |
Phosphoric acid ester | 8-9% |
Chlorine aromatics | 8-9% |
Individual evidence
- ↑ a b c d e Wolfgang Backé : Fundamentals of Oil Hydraulics, Institute for Hydraulic and Pneumatic Drives and Controls at RWTH Aachen University , 2nd edition 1974.
- ↑ Bunsen coefficient in the universal dictionary on deacademic.com
- ↑ a b Bussian absorption coefficient in the universal dictionary on deacademic.com