The disclosure provides an electrolyte supplement system in an aluminum electrolysis process, which includes low-molecular-ratio cryolite, wherein the low-molecular-ratio cryolite is selected from mKF.AlF.sub.3, nNaF.AlF.sub.3 or mixture thereof, where m=11.5 and n=11.5. When the electrolyte supplement system provided by the disclosure is applied to the aluminum electrolytic industry, electrolytic temperature can be reduced obviously in the aluminum electrolysis process without changing the existing electrolytic process; thus, power consumption is reduced, volatilization loss of fluoride is reduced and the comprehensive cost of production is reduced.

The disclosure provides an electrolyte supplement system in an aluminum electrolysis process, which includes low-molecular-ratio cryolite, wherein the low-molecular-ratio cryolite is selected from mKF.AlF.sub.3, nNaF.AlF.sub.3 or mixture thereof, where m=11.5 and n=11.5. When the electrolyte supplement system provided by the disclosure is applied to the aluminum electrolytic industry, electrolytic temperature can be reduced obviously in the aluminum electrolysis process without changing the existing electrolytic process; thus, power consumption is reduced, volatilization loss of fluoride is reduced and the comprehensive cost of production is reduced.

A method of reacting amine compounds with halons and perhalogenated compounds, resulting in the conversion of these ozone-depleting species into non-volatile salts and a variety of other amine derivatives is disclosed.

A method of reacting amine compounds with halons and perhalogenated compounds, resulting in the conversion of these ozone-depleting species into non-volatile salts and a variety of other amine derivatives is disclosed.

Disclosed is a process for producing a fluorine-containing complex salt, characterized by that, on a reaction mother liquor containing a plurality of cation species and a fluoroanion in a state that they have been dissolved in a solvent, a trigger for accelerating decomposition of the fluoroanion is allowed to act, thereby precipitating a complex salt containing a plurality of cation species and fluorine, as a solid, from the reaction mother liquor. According to this process, it is possible to produce a monodispersed fluorine-containing complex salt with uniform particle size and shape.

Disclosed is a process for producing a fluorine-containing complex salt, characterized by that, on a reaction mother liquor containing a plurality of cation species and a fluoroanion in a state that they have been dissolved in a solvent, a trigger for accelerating decomposition of the fluoroanion is allowed to act, thereby precipitating a complex salt containing a plurality of cation species and fluorine, as a solid, from the reaction mother liquor. According to this process, it is possible to produce a monodispersed fluorine-containing complex salt with uniform particle size and shape.

The present invention is directed to an organic polymerizable composition for producing a molded polymeric article. The composition includes a mold release agent of ionic fluoride and/or ionic fluoride precursor present in an amount sufficient to effect at least partial demolding of the polymeric article from a mold. Molded articles also are provided.

The present invention is directed to an organic polymerizable composition for producing a molded polymeric article. The composition includes a mold release agent of ionic fluoride and/or ionic fluoride precursor present in an amount sufficient to effect at least partial demolding of the polymeric article from a mold. Molded articles also are provided.

A sodium fluoride hopper crystal formed by a method of manufacture comprising: dissolving a portion of NaF in water to form an NaF solution; forming an antisolvent solution; and adding the NaF solution into the antisolvent solution to precipitate NaF crystals out of the solution.

A sodium fluoride hopper crystal formed by a method of manufacture comprising: dissolving a portion of NaF in water to form an NaF solution; forming an antisolvent solution; and adding the NaF solution into the antisolvent solution to precipitate NaF crystals out of the solution.