Investigating the Techniques of Acid- Base Extraction by separating three dye compounds & Recrystallization by purifying Methyl Orange

The separation technique of acidbase extraction was used to separate three unknown dye compounds that had different pH from the mixture. The identification of the unknown dyes compounds was performed based on the color of the dyes. Methyl Orange, a common dye, was synthesized and purified by recrystallization. The effectiveness of recrystallization was determined by calculating the percentage recovering. Different fabrics were also dyed and tested by methyl orange.