Many physical and chemical parameters can affect the force of buoyancy in fluid. Is their some nonlinear parameters have major or minor role? Please specify latest parameters also.
Basically the buoyant force depends on the density (d) of liquid and is independent of chemical and other properties. It depends on the temperature indirectly because density depends on temperature. If one go through the derivation, it is seen that the buoyant force is developed due to variable hydrostatic force (d g h) in vertical direction.