# What would sodium and potassium metals give upon treatment with water?

Jul 1, 2016

$M \left(s\right) + {H}_{2} O \left(l\right) \rightarrow M O H \left(a q\right) + \frac{1}{2} {H}_{2} \left(g\right) \uparrow$
$N a K$ alloy, as used in the laboratory is an amalgam of sodium and potassium metals. It is commonly used as a drying agent for ethers and hexanes, in that its melting point is much lower than either of the metals used to prepare it, and is low enough that it remains a molten globule at low temperature. It would react spectacularly with water, but the products would be $K O H$ and $N a O H$.
The reaction between water and $N a K$ alloy is not one that anyone should attempt. Potassium is reactive; the alloy is even more so; do not let it come near water. I am willing to tell you how to dispose of $N a K$ alloys in a personal message.