Barium uranium phosphate

Major constituents (greater than 5 mg/L) Minor constituents (O.Ol-lO.Omg/L) Selected trace constituents (less than 0.1 mg/L) Bicarbonate, calcium, carbonic acid, chloride, magnesium, silicon, sodium, sulfate Boron, carbonate, fluoride, iron, nitrate, potassium, strontium Aluminum, arsenic, barium, bromide, cadmium, chromium, cobalt, copper, gold, iodide, lead, Uthium, manganese, molybdenum, nickel, phosphate, radium, selenium, silver, tin, titanium, uranium, vanadium, zinc, zirconium... 

Lead, cadmium, mercury, cobalt, uranium, antimony, barium, beryllium, cesium, molybdenum, platinum, thallium, tungsten, organochlorine pesticides, organophospho-rus insecticides (dialkyl phosphate metabolites), (specific metabolites), pyrethroid pesticides, other pesticides (2-isopropoyxyphenol, carbofuranphenol), herbicides, phthalates, phytoestrogens, polycyclic aromatic hydrocarbons, polychlorinated dibenzo-p-dioxins and dibenzofurans, polychlorinated biphenyls, tobacco smoke... 

Monazite concentrate is processed either with sulfuric acid, like bastnasite, to produce a mixture of sulfates but the usual process is an alkaline treatment. The alkali process is preferred since it removes the phosphates more readily [9]. Whichever method is chosen the radioactive thorium must be completely removed. After benefication the monazite concentrate is finely ground and reacted with a hot concentrated sodium hydroxide at 140° to 150°C. Insoluble hydroxides of the rare-earths and thorium are formed while trisodium phosphate and excess sodium hydroxide remain in solution. The next step is hydrochloric acid attack on the solids portion. The thorium remains insoluble and a crude thorium hydroxide can be filtered off Trace contaminants that do carry through into solution, such as uranium and lead, as well as some thorium, are removed by coprecipitation with barium sulphate in a deactivation step. The cerium-containing product will be a rare-earth chloride differing only marginally in the proportions of the various rare- earths present, to the analogous rare-earth chloride produced from bastnasite. 

Elements like aluminium, barium, cadmium, lead, strontium, and traces of others exist in different forms in plastics additives, and may enter the body through food and water as well as through air breathed in. These elements do not serve any known purpose in the body, but they are still absorbed, and as a result, the average adult body can contain significant amounts of them. Some of these resemble human elements (e.g., strontium resembles calcium closely, and a lot of it is absorbed easily in bones, to the extent that approximately 320 mg can be found in the body of an average person, which is far more than many of the essential elements, while even gold and uranium can exist in quantities of 7 and 0.07 mg, respectively), and are retained and deposited preferentially either in the skeleton (e.g., uranium, binds specifically to the phosphate of the bones) or elsewhere for example in the liver, where liver proteins can trap and deposit some of these heavy metals, like cadmium. 

Zinc Hydrosulfite Zinc Nitrate Fluorine Graphite Oxygen Chlorine Nitrous Acid Sulfurous Acid Hydrogen Sulfide Selenic Acid Ammonium Hyposulfite Ammonium Thiosulfate Ammonium Sulfate Ammonium Phosphate Dibasic Diammonium Phosphate Hexafluorouranium Uranium Hexafluoride Silver Chloride Aluminum Fluoride Aluminum Trifluoride Aluminum Ammonium Sulfate Ammonium Alum Silver Bromide Magnesium Chloride Magnogene Barium Sulfite Bismuth Trichloride Cesium Bromide... 

Uranium (IV), In general, should behave similarly as neptunium (IV) and plutonium (IV). These are carried by lanthanum fluoride, ceric and zirconium lodates, ceric and thorium oxalates, barium sulfate, zlrconliun phosphate, and bismuth fifrsonate.- Uranium (Vl) does not carry with these agents providing the concentration of either carrier or uranlxun Is not too large. 

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