Solubility is not to be confused with the ability to 'dissolve' a substance, because the solution might also occur because of a chemical reaction. For example, zinc 'dissolves' (with effervescence) in hydrochloric acid as a result of a chemical reaction releasing hydrogen gas in a displacement reaction.
All three kidney, liver and lungs purify the blood. The lungs help remove carbon dioxide, the kidneys remove water-soluble waste and the liver removes fat soluble wastes and many other impurities from the blood....ref:http://www.pharmainfo.net/answers/pharmaquestion/which-organ-purifies-blood.
The spleen is a blood filled organ located in the upper left abdominal cavity. It is a storage organ for red blood cells and contains many specialized white blood cells called âmacrophagesâ (disease fighting cells) which act to filter blood. The spleen is part of the immune system and also removes old and damaged blood particles from your system. The spleen helps the body identify and kill bacteria. The spleen can affect the platelet count, the red blood cell count and even the white blood count.