Formula: H3BO3 or B2O3.3H2O
Alternate Names: Boracic acid, Orthoboric Acid, Hydrous Boric Oxide
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|DENS - Density (Specific Gravity)||1.50|
|DTMP - Decomposition Temperature||185C|
|GSPT - Frit Softening Point||577C|
Boric acid is a crystalline water soluble boron mineral. It is white in appearance and can be used as granules or as a powder. Both forms are stable under normal conditions, free-flowing, and easily handled by means of air or mechanical conveying. In solution, they are mildly acidic.
Boric Acids are used as the B2O3 source in the formulation frit. Fast fire frits for tiles find this material especially useful (compared to the deca and pentahydrate forms) because of their requirement for low sodium levels.
It is currently produced at Bandirma Boric Acid plant in Turkey and at Rio Tinto Borax. Depending on the particle size, the product is classified as "Granular" and "Powder".
Out Bound Links
Hardness: 7 Density: 2.9-3 Soluble in HCl Water insoluble Popular flux particularly at the mid-range temperatures of 1000-1200ºC. A major boron ore and source for boric acid.
The major borate minerals are Colemanite and Ulexite. The geology required for borates is found in very few places in the world (mainly southern California, Chile, Turkey, Argentina, Spain, Russia). B...
In Bound Links
Calcined Borax, Dehydrated Borax, Pyrobor
Borax 5 Mol, Sodium Tetraborate, Borax 5-hydrate
Sodium TetraBorate Decahydrate, Borax 10-hydrate, 10 Mol Borax, Neobor, Borax
Anhydrous Boric Acid, B2O3
A host of water soluble materials are available to source most of the important oxides needed in ceramic glazes. However such materials cannot normally be used in glazes. Why? Because glazes are suspensions of particulate materials, not solutions of soluble materials. Such suspensions have a far low...