- A very vigorous
flux; acts in a similar way to sodium oxide but is different in
chemical form and behaviour so that it cannot be substituted for
sodium oxide except in small quantities. This is especially true
where colours are concerned.
more brilliance than sodium oxide and may slightly extend the
maturing firing range of the glaze.
- Usually combined
with Na2O and expressed as KNO or KNa2O in unity formula calculations.
- Fuses at
(especially potash feldspars) for mid to high temperature range
- Fritts -
usually used in low temperature glazes.
in the creation of fritts.
Carbonate (pearl ash).
- noted for unusual & exciting colours.