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Uromia Lake in Azarbayjan (Iran) is the 20th larg,_st lake in the world. The extraction of chemicals specially Potassium and Magnesium compounds from this lake, is of great interest. In this study totally 182 samples have been taken by standard methods from various depth and parts of the lake, periodically in
spring (92 samples) and fall (90 samples) and 13 physico - chemical properties of each sample were
measured and the statistical analysis of results have been carried out.
In spring, concentration of lake water was
heterogenous and varied in north, south west, central and south east zones. This difference in concentration can be seen at bottom of the lake too.
In fall, concentration of lake water at surface and bottom is of homogenous and this causes a great mass transfer of the mentioned zones, which in return
can cause different side processes. The results
obtained in this paper can be used in determination of suitable zone and depth for extraction of compounds.
In this research the amount of constant K for relation of conductivity (s cnrl) to TDS (ppm) for lake water in two seasons, spring and fall, were calculated 1. 17 and 1.32 respectively