Why time limit is required in distillation.Of r.M value?
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The design of a distillation can be divided in the following steps. ... Optimum reflux ratio typically lines between 1.2 to 1.5 times the minimum reflux .... Fractionation requirements: ASTM gap and overlap.
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» Change in colour
Potassium dichromate solution and sulphur dioxide are characterised by change in colour from Orange to green.
» Change in temperature
Chemical reaction between quicklime and water is characterised by change in temperature.
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