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2019-10-16

Potassium-sodium alloy

[chemical structure]

4K-Na

[chemical characteristics]

Silver soft solid or liquid. Reacts violently with acid, carbon dioxide, moisture and water, releases hydrogen, spontaneously ignites, and sometimes even explodes. Density: 0.847 g/ml (100 °C) (K78%, Na22%); 0.886克/毫升 (100 ° C) (K56%, Na44%) Melting point: -11 ° C (K78%, Na22%); 19 ° C (K56%, Na44%);

[limit parameters]

Boiling point: 784 ° C (K78%, Na22%); 825 ° C (K56%, Na44%);

[Application] The coolant used in the liquid metal nuclear reactor is a sodium-potassium alloy, which is liquid at normal temperature.

Melting point of sodium potassium alloy

Sodium potassium melting point

20% 80% -10 °C

22% 78% -11 °C

24% 76% -3.5 °C

40% 60% 5 °C

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