Q5. WHAT DO YOU KNOW ABOUT URANIUM? EXPLAIN.
WHAT IS URANIUM ? DISCUSS.
HIGHLIGHT THE NATURE AND USES OF URANIUM.
Uranium is a chemically radio active metal which used in Atomic Reactors as a basic fuel. Its symbol is ‘U’ and the Atomic number is 92. Uranium was discovered in 1789.
The historic importance of Uranium was increased when French Scientists Pierre and Marie Cure discovered elements of Polonium and Radium in Uranium. Uranium is smelted at 1132 centigrade and begins to boil at 3818 centigrade. The atomic weight of Uranium is 238.03. It is dissolved in hydro Chloric and Nitric acid but does not dilute in Alkali. Uranium is not found in natural actual form but it is mixed with other metals like ‘Pitchblend’ and ‘Arnotite’. There are two methods through which Uranium is extracted from its ore; the ancient method and the modern method called Solvent Extraction Ion Exchange.
Uranium is the key raw material for producing atomic energy. Atomic Energy is mostly obtained from Uranium-235 because it can be broken and can be used in the Converter Reactor in its natural form. Having the scientific device discovered to break atom, Uranium has become a political power. America first time imposed ban on using Uranium for the production of atomic weapons. America, in 1954, relaxed the control on the use of Uranium for producing energy. Uranium emerged as industrial power in 1954 when America made submarine named ‘nautilus’ generated by atomic energy. Presently, there are 436 atomic plants working in 32 countries of the world producing total capacity of 351,718 Megawatt. New atomic plants are under preparation in 14 countries which would produce 31,718 megawatt energy.
Atomic energy has been used in Agricultural and medical sectors on the large scale for the purposes of research. This is the reason that the positive value of Uranium has tremendously been increased. Despite usefulness of Uranium, it can’t be used completely for the welfare and benefits of man kind because:
a. Uranium is excessively scarce.
b. Plants can be affected by the use of Uranium.
c. Keeping the waste of radio active Uranium and Plutonium preserved and under control is a big problem.