Alumina Hydrate, Hydrated Alumina, Alumina Trihydrate, 50 pound,1 Bag

Description: Alumina Hydrate, Hydrated Alumina, 50 pounds, 1 Bag A white, translucent powder that is also commonly called aluminum hydroxide. Alumina trihydrate is an inert, non toxic mineral filler used primarily for flame retardancy and smoke suppression. Alumina trihydrate is produced from refining raw bauxite ore. There are two processes to refine bauxite; the Sintered process or the Bayer process. Aluminium hydroxide, Al(OH)3, is found in nature as the mineral gibbsite (also known as hydrargillite) and its three much rarer polymorphs: bayerite, doyleite and nordstrandite. Aluminium hydroxide is amphoteric in nature, i.e, it has both basic and acidic nature. Closely related are aluminium oxide hydroxide, AlO(OH), and aluminium oxide (or alumina), Al2O3. Aluminium oxide is also amphoteric in nature. These compounds together are the major components of the aluminium ore bauxite. The naming for the different forms of aluminium hydroxide is ambiguous and there is no universal standard. All four polymorphs have a chemical composition of aluminium trihydroxide (an aluminium atom attached to three hydroxide groups).[3] Gibbsite is also known as hydrargillite, named after the Greek words for water (hydra) and clay (argylles). The first compound named hydrargillite was thought to be aluminium hydroxide, but was later found to be aluminium phosphate; despite this, both gibbsite and hydrargillite are used to refer to the same polymorphism of aluminium hydroxide, with gibbsite used most commonly in the United States and hydrargillite used more often in Europe. In 1930 it was referred to as α-alumina trihydrate to contrast it with bayerite which was called β-alumina trihydrate (the alpha and beta designations were used to differentiate the more- and less-common forms respectively). In 1957 a symposium on alumina nomenclature attempted to develop a universal standard, resulting in gibbsite being designated γ-Al(OH)3 and bayerite becoming α-Al(OH)3 and nordstrandite being designated Al(OH)3. Based on their crystallographic properties, a suggested nomenclature and designation is for gibbsite to be α-Al(OH)3, bayerite to be designated β-Al(OH)3 and both nordstrandite and doyleite are designated Al(OH)3. Under this designation, the α and β prefixes refer to hexagonal, close-packed structures and altered or dehydrated polymorphisms respectively, with no differentiation between nordstrandite and doyleite.[3] This is available for local pickup ................................................................................................................................................................... Testing Policy: Testing of raw materials should be an integral part of any process including ceramic or glass making / manufacturing. Upon receipt of any new material, we strongly recommend that you test the material. "Paul Brown Studio Arts and Supplies" . has no control over either the variations that may occur in the natural materials or their application. All products are supplied as is from the manufacturer. No additional processing or technical support is supplied. Therefore, our products are sold with the understanding that the user is solely responsible for determining suitability for any purpose and the results obtained. There are no warranties expressed or implied, regarding the user’s finished product or results. ....................................................................................................................................................................................................................................... Return Policy: Returns are NOT accepted

Price: 26 USD

Location: Bethel, Ohio

End Time: 2024-03-08T16:39:24.000Z

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