In the next video, the speaker will showcase explosive reactions of sodium-potassium alloy with halogens.

Solvated electrons—electrons surrounded by a shell of solvent molecules—are visible as a characteristic blue color not only when alkali metals are dissolved in liquid ammonia but also in water.

Lithium aluminum hydride is introduced to superheated steam in an attempt to capture stunning footage and extend the video length.

The blue color of solvated electrons can also be observed when sodium-potassium alloy interacts with superheated steam, in addition to being observed in water and liquid ammonia.

Solvated electrons have extremely short lifetimes in water, making them normally invisible despite their existence; controlling reaction conditions allows them to be observed as blue color despite these microsecond-scale lifetimes.

Dropping a sodium-potassium alloy from a considerable height into water always results in an instant explosion with sparks of burning metal flying around.

By creating an inert atmosphere and gently placing a drop of sodium-potassium alloy onto the water's surface (rather than dropping it), the vigorous reaction is controlled and the drop turns bright blue from solvated electrons without exploding.

The reaction of sodium-potassium alloy with water produces hydrogen gas, which ignites spontaneously during the vigorous reaction, contributing to the explosive appearance; flushing with inert gas prevents this hydrogen ignition.

When a drop of sodium-potassium alloy is placed on water's surface under controlled conditions, the resulting molten hydroxide temporarily stabilizes on the water surface via the Leidenfrost effect before eventually bursting spectacularly once it cools sufficiently.

Superheated steam can reach high enough temperatures to ignite a match (demonstrating its thermal energy capacity).

When sodium-potassium alloy is placed in superheated steam (unlike in liquid water), it does not explode, allowing observation of dark blue areas forming from solvated electrons.

The inspiration for this demonstration came from findings published in the journal Applied Chemistry regarding solvated electrons in water.

A sodium-potassium alloy is created by mixing pieces of sodium and potassium in hot oil.

When a sodium-potassium alloy is added to liquid ammonia, the characteristic blue color of solvated electrons is observed, just as with water and steam reactions.

Previous videos by the speaker showed a moment when one drop of sodium-potassium alloy absorbs another drop, which audience members requested to see in slow motion from different angles.

Alkali metals placed in water are always on the brink of exploding due to the vigorous exothermic reaction between the metal and water molecules.