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Hardwood Ash

Alternate Names: Hard wood ash

Oxide Analysis Formula
CaO 21.51% 0.30
K2O 33.44% 0.28
MgO 15.85% 0.31
Na2O 2.30% 0.03
P2O5 16.34% 0.09
SiO2 0.67% 0.01
Fe2O3 0.58% 0.00
MnO 2.60% 0.03
Oxide Weight 72.66
Formula Weight 77.88

Related Information


Materials Cherry Ash
Materials Wood Ash
Materials Eucalyptus Ash
Materials Soft Wood Ash
Materials Oakwood Ash
Materials Applewood Ash
Typecodes Flux Source
Materials that source Na2O, K2O, Li2O, CaO, MgO and other fluxes but are not feldspars or frits. Remember that materials can be flux sources but also perform many other roles. For example, talc is a flux in high temperature glazes, but a matting agent in low temperatures ones. It can also be a flux, a filler and an expansion increaser in bodies.
Glossary Wood Ash Glaze
Common washed wood ash has a chemistry akin to a ceramic glaze, so it can comprise significant percentages in a recipe. Plus it can produce unique visual effects.

By Tony Hansen

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