indigosynthesis

indigosynthesis - Steven Hagedon Yan Zhao Mar-30-08...

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Steven Hagedon Danielle Nguyen, Ashley Cox, and Grishma Sheth Yan Zhao Chem 104b Mar-30-08 Indigo Synthesis Problem to Be Solved: To investigate the synthesis of indigo through its creation from smaller precursors, its isolation from a filter, its ability to be reduced to leucoindigo, and to synthesize indigo carmine from indigo. Fundamental Principles: 2C 7 H 5 NO 3 + 2C 3 H 6 O C 16 H 10 N 2 O 2 + 2CH 3 CO 2 H + 2H 2 0 (2-nitrobenzaldehyde) (acetone) (indigo) (acetic acid) C 16 H 10 N 2 O 2 + 2 H + + 2 e - C 16 H 12 N 2 O 2 (indigo) (leucoindigo) C 16 H 10 N 2 O 2 + 2H 2 SO 4 C 16 H 8 N 2 O 8 S 2 2- + 2 H 2 O + 2 H + (indigo) (sulfuric acid) (indigo disulfonic acid) C 16 H 10 N 2 O 2 + 3H 2 SO 4 C 16 H 7 N 2 O 11 S 3 3- + 3 H 2 O + 3 H + (indigo trisulfonic acid) C 16 H 10 N 2 O 2 + 4 H 2 SO 4 C 16 H 6 N 2 O 14 S 4 4- + 4 H 2 O + 4 H + (indigo tetrasulfonic acid) ε 1=Abs/[indigo carmine] ε 1=Abs standard /[indigo carmine] standard = Abs sample /[indigo carmine]
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indigosynthesis - Steven Hagedon Yan Zhao Mar-30-08...

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