The same procedure with other solvents (like toluene, hexane) doesn't bring the color change.
Etienne Schacht
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Amines are easily oxidised in presence of oxygen and perhaps this can explain the colour formation.
Silica is acidic and hence can form a salt with TEA, but this should not result in colouring.
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Etienne Schacht
Amines are easily oxidised in presence of oxygen and perhaps this can explain the colour formation.
Silica is acidic and hence can form a salt with TEA, but this should not result in colouring.
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Raja Viswanathan
may be due to the stoichiometric excees nitrogen may form N-O bonding ....?
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