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 multifunctional organ. In the circulatory system, its main role is to destroy and remove old or defective red blood cells and cell debris or bacteria from the blood stream.It also produces red blood cells when required, as well as lymphocytes, plasma cells, and antibodies.he spleen is a multifunctional organ. In the circulatory system, its main role is to destroy and remove old or defective red blood cells and cell debris or bacteria from the blood stream.