- Pearl Ash is another name for Potassium Carbonate. It is a strong flux and can be used as a color modifier in glazes.
- Actually a precursor to baking soda.
- Potassium carbonate is a white salt, soluble in water which forms a strongly alkaline solution. It can be made as the product of potassium hydroxide's absorbent reaction with carbon dioxide. It is deliquescent, often appearing a damp or wet solid.