explain the principles of each stage of the isolation process in the extraction method used

There are 109 elements known at present. 92 elements occur in nature, while the rest are man-made. All materials on the Earth are made of these naturally occurring elements. These are classified into metals, non-metals, and metalloids. The occurrence and extraction of some lighter m..

For reactions where many reactants are involved, the order of the reaction is determined by the method of isolation. This was developed by Ostwald. In this method, the concentrations of all the reactants except one are taken in excess. For e.g., in the reaction A + B +..

. Some species of dinosaurs had feathers, although they could not fly using the feathers. Birds seem to have later adapted the feathers to flight. This, of course, means that birds are very closely related to reptiles, since dinosaurs were reptiles! The analysis of the organ structure in ..

Silver is extracted from the ore-argentite (Ag 2 S). The process of extraction of silver is called as cyanide process as sodium cyanide solution is used. The ore is crushed, concentrated and then treated with sodium cyanide solution. This reaction ..

Principle - Sulphur has a low melting point of about 112 o C - 115 o..

The mother liquor remaining after the precipitation of sodium bicarbonate contains ammonium chloride. This is used to regenerate ammonia (one of the raw materials) by steam heating with milk of lime. Ammonia and carbon dioxide liberated are utilized in making the whole process c..

Organic compounds, which are easily soluble in organic solvents but insoluble or immiscible with water forming two separate layers can be easily separated. The aqueous solution of the mixture is mixed with a small quantity of organic solvent in a separating funnel. The separating funnel is stopper..

Extracting Metals Low in the Activity Series - Metals that are low in the activity series are very un-reactive. The oxides of these metals can be reduced to metals by heating alone. For example, mercury is obtained from its ore, cinnabar (HgS), by the process of heating. Reducti..

Extraction of Aluminium - Pure Aluminium metal is extracted from bauxite in a three-stage process. a) Purification of Bauxite (Bayers Process) to obtain pure Alumina. b) Electrolysis of pure Alumina in molten cryolite (Na 3 AlF 6 ) (Halls proce..

Magnesium metal is strong reducing agent and therefore, cannot be obtained by chemical reduction method. It is extracted by electrolysis of fused anhydrous salts. A number of methods are available for the extraction of magnesium metal from its ores. The most..