The crude dyestuff is manufactured by taking
100 g of powder in a round bottom flask and 500ml of
solvent (ethanol water) in the ratio 40:60 was added to it.
The flask was heated in a water bath at 60°C for
60minutes.The solution was then filtered to obtain crude
dyestuff. We used different concentrations of solvent
(ethanol) while extracting the crude dye stuff. When
laboratory grade 95% Ethanol was used the yield of the
crude dyestuff is 18.52%. When laboratory grade 75%
Ethanol was used the yield of the crude dyestuff is
13.21%