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Subsolidus compatibility in the system NaCl-KCl-AlCl3-NaF-KF-AlF3.
Sorrell-CA; Groetsch-JG Jr.
J Am Ceram Soc 1986 Apr; 69(4):333-338
The chemistry and properties of salts used as fluxes for recycling aluminum were studied. Many fluxing salts fall within the system nacl-kcl-alcl3-naf-kf-alf3, which has been shown to be a reciprocal system, with naf-kcl, kcl-alf3, and nacl-alf3 as the stable mixed- halide binaries. Twelve subsolidus compatibility tetrahedra were determined by x-ray analyses of samples heated in evacuated sealed tubes. X-ray measurements of quenched and annealed samples indicate that elpasolite, nominally k2naalf6, has a compositional range between 60 mol % na3alf6, 40 mol % k3alf6 and 25 mol % na3alf6, 75 mol % k3alf6. Improved x-ray powder data are given for kalf4, showing a previously reported structure to be essentially correct.
OP; Journal Article
Issue of Publication
Journal of the American Ceramic Society
Page last reviewed: April 12, 2019
Content source: National Institute for Occupational Safety and Health Education and Information Division