Dissolving Ceramic With Acid

So we mostly used a mixture of phosphoric acid 6 wt and chromic acid 1 8 wt at 50 o c.

Dissolving ceramic with acid. A liquid free flowing flux which can dissolve the ceramic is only one part of a successful smelt albeit a big part. There are many types of ceramics. Examples include the commonly used pharmaceutical antidepressant medication fluoxetine prozac and the material ptfe teflon. The time depended on the.

I need to dissolve ceramic shell from a bronze cast and i was wondering if there is a liquid solution available to remove the remaining shell. Porcelain one of the stronger ceramics won t really react with any acid except hf hydrofluoric acid as you see in breaking bad. Molten naoh for more multiple material and for more precise stuff i use either 70 hf or the same with adding sulfuric acid and the more cruel and devastating way being molten oxone there are some disadvantages of the last. Aluminium alloy castings which are themselves susceptible to attack by caustic alkali solutions by providing the core material with a substance containing hydrogen donor group which is capable of producing nascent hydrogen and contacting the core with fused anhydrous caustic alkalis.

Aluminium or light alloy e g. Elemental fluorine is produced from it. From my experience we needed to dissolve etched alumina on top of aluminum. Stronger acids such as fluoroantimonic acid might be able to dissolv.

Ceramic core materials are selectively dissolved from light metal e g.