Cupro-ammonium complex

The interaction between 2, 4, 5-trichlorophenyl propagyl ether and iodine, in the presence of cuprous chloride, ammonium carbonate to form cupro-ammonium complex salt, plus potassium iodide to solubilize iodine as its water-soluble complexes (as KI2, KIg, KI. ) ulti-... 

The solution of cupro-ammonium complex must be prepared afresh by warming the reactants carefully at 50°C. 

The cupro and lyocell processes are based on the application of direct dissolution systems. The copper ammonia complex is prepared from copper sulphate and sodium carbonate with sodium and ammonium hydroxides, as presented in the equation in Fig. 4.3. The dissolution process is carried out for cuprammonium via weakening the intra/intermolecular hydrogen bonds and complex formation. Cupro and especially lyocell processes consume lower amounts of water, but a similar magnitude of energy. 

---