Koolstofchemie
Koolstofchemie
Koolstofchemie
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Azo-kleurstoffen<br />
• Pigmenten in verf: ionen (Cu,Co,Mn,Cr,Fe,…)<br />
• Kleurstoffen: met textiel verbonden<br />
organische moleculen (natuurlijk of chemisch)<br />
• Azo-kleurstoffen: N-groepen op benzeen<br />
Nitrobenzeen reduceren tot aniline:<br />
Aniline + HNO2 + HCl<br />
benzeen-diazonium-chloride<br />
Diazonium + fenol(aat)<br />
4-hydroxy-azobenzeen<br />
(oranje azo-kleurstof)<br />
NH 2<br />
N≡N| + Cl -<br />
O -<br />
N=N OH
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