Industrial Uses
It is estimated that 70% of cyanuric chloride is used in the preparation of the triazine-class pesticides, especially atrazine. Such reactions rely on the easy displacement of the chloride with nucleophiles such as amines:
- (ClCN)3 + 2 RNH2 → (RNHCN)(ClCN)2 + RNH3+Cl-
Other triazine herbicides, such as simazine, anilazine and cyromazine are made in an analogous way.
Cyanuric chloride is also used as a precursor to dyes and crosslinking agents. The largest class of these dyes are the sulfonated triazine-stilbene optical brighteners (OBA) or fluorescent whitening agents (FWA) commonly found in detergent formulas and white paper. Many reactive dyes also incorporate a triazine ring. They are also manufactured by way of the chloride displacement reaction shown above.
Read more about this topic: Cyanuric Chloride
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