Hello again St. Lucifer.
A public service announcement: the use of lime does not guarantee a safe and complete disposal of a human body.
Example: a body is buried in the ground and covered with lime. The problem becomes: lime reacts to the water and releases calcium hydroxide. The heat from the chemical reaction kills the bacteria on the body and the surrounding soil and dehydrates the body...thus delaying or even stopping decomposition. The body actually mummifies.
The problem with acids is that any acid powerful enough to eat away the bones will also have a corrosive effect on the surroundings...it eats away the container, plumbing...peels wallpaper, etc. You might get rid of a body, but you also leave a messy crime scene.
How do I know all this? Well, I just do, that's all.