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Pearl Ash
Chemistry
Chemistry available on new site, see link above
Miscellaneous
- Family: Flux Source
- Region: None
- Mined At: Unspecified
- Raw Mineral: No
- Generic: Yes
Notes
This is the only material in ceramics that can deliver K2O in the exact amount required without bringing other oxides with it, however it is water soluble. The most common source of K2O in glazes is feldspar and normally all of the oxides that feldspar supplies are also needed in glazes (so it is rare that pure and much more expensive K2O is needed). Sometimes this is used to modify the color in glazes.
In the manufacture of frits, pearl ash can be an important source of potassium.
Data
- Specific Gravity: 2.30
- Melting Point (MP): 896C M
Linked Articles
Carbonate de Potassium par Edouard Bastarche
Toxicity of potassium carbonate related to its use in ceramics and potteryPotassium Carbonate Toxicity by Edouard Bastarche
Toxicity of potassium carbonate related to its use in ceramics and pottery
URLs
- WikiPedia description - http://en.wikipedia.org/wiki/Potassium_carbonate
Suppliers
- Generic
Authors
- Tony Hansen (Owner)
XML
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