Can somebody explain me about this "NaCl-KCl (8 g), a molar ratio of 1:1 and an eutectic temperature of 657 °C"?

05 May 2024 1 9K Report

I want to prepare a photocatalytic material Bi3TiNbO9 nanosheets and the authors mentioned NaCl-KCl (8 g), a molar ratio of 1:1 and an eutectic temperature of 657 °C as a one component. So, kindly explain this to me.

David Elks

So, if you look at the melting point for either NaCL (801) or KCl (770) alone, both melt at temperatures exceeding 700oC, whereas a mixture of the two salts, when mixed at a 1:1 molar ration, melts at 657oC, so, well below the melting point of either salt when heated alone. Eutectics are often used to increase the liquid ranges of mixed salt "solutions".

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