According to the principles of simultaneous equilibria and mass equilibria. CuInSe2 (CIS) were prepared by total aqueous process at normal pressure and room temperature. A series of thermodynamic equilibrium equations were deduced for the complex system of Cu+-In3+-Se2--NH3-L2--Cl--H2O (T=298 K). and the equilibrium curves of lgc-pH were drawn. https://allfixelectricales.shop/product-category/coaxial-adaptor/