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Ash Hemisphere Temperature (Reducing)

The ash hemisphere temperature is an important property of ash melting behaviour. It is defined as the temperature at which the ash test piece forms a hemisphere (i.e. the height becomes equal to half the base diameter).

This property is determined in a reducing atmosphere using a carbon monoxide/carbon dioxide gas mix or a hydrogen and carbon dioxide gas mix. This characteristic temperature can also be determined in an oxidising atmosphere, using air or carbon dioxide, using analysis package P41 - Ash Melting Behaviour (Oxidising Conditions).

Click here to place an order for determining Ash Hemisphere Temperature (Reducing).

Analysis Packages for Ash Hemisphere Temperature (Reducing)

The Celignis Analysis Package(s) that determine this constituent are listed below:

P42   Ash Melting Behaviour (Reducing Conditions)
Ash Shrinkage Starting Temperature (Reducing), Ash Deformation Temperature (Reducing), Ash Hemisphere Temperature (Reducing), Ash Flow Temperature (Reducing)

Further Details

Additional Material

We can determine the Ash Hemisphere Temperature (Reducing) content of biomass, click here to learn more about our various biomass analysis methods.