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EEL - USP

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(1)<br />

H + + FeBr 4<br />

R R<br />

+ Br<br />

(2) Mistura sulfonítrica<br />

H 2SO 4<br />

H + + HSO 4<br />

HBr + FeBr 3<br />

H + HO NO 2 H 2O NO 2 + HSO 4<br />

(3) Sulfonação (H2SO4/SO3)<br />

H 2SO 4 H + + HSO 4<br />

O S<br />

R<br />

O<br />

H + HSO 4<br />

O O S<br />

O<br />

+ S<br />

O<br />

R<br />

O<br />

H<br />

H 2O + NO 2<br />

O<br />

H<br />

Br<br />

O<br />

O O S<br />

R<br />

SO 3H H + +<br />

H 2SO 4<br />

H<br />

O<br />

S<br />

O<br />

O<br />

NH 2<br />

+ H<br />

NH 2<br />

Br<br />

+ H +<br />

O<br />

O O S<br />

SO 3H<br />

O<br />

162

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