Aluminium fluorosilicate

Aluminium borohydride Aluminium chloride Aluminium chlorate Ammonium tetrachloroaluminate Aluminium fluoride Aluminium trihydroxide Aluminium ammonium sulphate Aluminium potassium sulphate Aluminium nitride Aluminium nitrate Sodium aluminate Aluminium sodium aluminate Aluminium phosphate Aluminium phosphide Aluminium borate Aluminium oxychloride Aluminium fluorosilicate Aluminium magnesium silicate Aluminium sulphate... 

Sodium aluminium sulphate Sodium bisulphate Sodium hypochlorite Sodium perchlorate Sodium thiocyanate Stannic ammonium chloride Stannic chloride Stannous chloride Uranyl nitrate Zinc chloride Zinc fluorosilicate... 

Efficient scrubber designs allow recovery of the H2SiFe as a concentrated solution, which could be processed to synthetic cryolite, aluminium fluoride, and various fluorosilicates. If no market is available for the acid or fluoride derivatives, the fluosilicic add can be neutralized by liming. The neutralized slurry may require further treatment before discharge. 

Another method proposed by J. Berzelius—calcination of potassium fluorosilicate with an excess of potassium—proved to be more successful and straightforward. The sintered mass was decomposed with water and, as a result, pure amorphous silicon was obtained. J. Berzelius showed that upon calcination silicon was transformed into silica this makes Berzelius the discoverer of silicon. Crystalline silicon was obtained in 1854 by A. Saint Claire Deville during separation of metallic aluminium (see p. 109). The Latin name silicium originates from silex meaning a hard stone . 

When cleaning aluminium equipment, especially in alkaline medium, which is widely used for degreasing equipment used in the food industry. Blackening can be reduced by silicates or fluorosilicates, but it cannot be totally prevented [43, 44]. 

Latex coagulation is achieved in the presence of sodium fluorosilicate. This operation can be carried out in aluminium vessels they will mm black, but will not be attacked. 

Potassium fluorometalates and in particular fluorozincate and fluorosilicate have applications in the field of aluminium brazing as so-called reactive fluxes. The nomination reactive stands for the redox reaction that takes place between the flux (KZnp3 or K2SiF6) and the aluminium surface to be brazed. These reactions give rise to formation of elemental Zn or Si and potassium fluoroaluminate, which acts as the actual flux. The elements formed in this way combine and alloy with aluminium, diffusing through the... 

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