tank after the previously removed first thermometer out the tank so bisaterlihat. The possibility of such time lag greatly affects the actual temperature). The viscosity and density we measured only in the final kanji solution, ie 327.7 Rpm with 3 times the addition of NaOH and 3 times the addition of sulfuric acid.Sefore the blending time and the reynolds number is also only at Rpm the. We do not have a chance to count another Rpm. As for the reynolds number, it is 1.657 x 106 (Without dimension / unit) with its blending time factor is 0.564 minutes.6 CONCLUSIONS From this practicum the following 
conclusions are obtained: a. The flow pattern that is formed is Turbulent (with the type of tank at a circle below the circle and the type of impeller tri blades or Marines impeller). The faster the rotation of the stirrer is more clearly visible turbulent flow pattern. The flow makes the mixing process evenly in all tank points.
c. The faster the stirrer rotation, the faster the time it takes to mix the solution present in the tank (the addition of NaOH and sulfuric Acid). And for each mixing, there is an increase in the temperature of the solution in the tank with the faster rotation of the agitator. The viscosity of the starch solution was 7.8 cP with the density of 0.98 g / mL. his Reynolds adapunbilangan is 1.657 x 106 (Without dimension / unit) with the blending time factor is 0.564 Minutes.
