Question

What is the solubility of corundum in water at SATP?

Answer 1

The movement of water and corundum atoms is chaotic. Very rarely, a surface corundum atom will be moving fast enough to be ejected from the surface. I'm not sure whether it's more common for a single atom to get ejected or for An aluminum and an adjacent oxygen atom to get ejected in pairs and then pull a hydrogen atom from a water molecule making it dissolve as aluminum hydroxide but its stable solution concentration occurs the concentration is so low that atoms are attaching to the surface at the same rate as they're getting ejected from it