This ice cube is too heavy

Ice normally floats on water because as water freezes it expands, and the density of the solid becomes less than the liquid. This on the other hand is an ice cube that I made, but this one's kind of special, because it's able to sink.

Nile talks about lab safety (Chemistry is Dangerous): https://youtu.be/ftACSEJ6DZA

NileRed Beaker mugs: https://nilered.tv/store

■ NileRed: https://www.youtube.com/c/nilered

#shorts ... https://www.youtube.com/watch?v=lVryXeXbwGM