Water is able to dissolve many substances. that should be a perfect answer for you.
Minerals
The minerals remain after the rest of the organism decays
Scatter Radiation is a type of secondary radiation that occurs when the useful beam intercepts any object, causing some x-rays to be scattered. During an x-ray or fluoroscopic exam the patient is the most significant source of scatter radiation.Scatter radiation occurs as a result of the targeted beam striking objects, such as the patient's body, and reflecting a more harmful secondary radiation in all directions. One method of reducing the medical staff's exposure to this harmful scatter radiation is the implementation Infab's new Scatter Armor Shields.
I hope this helped :)
