Stabilization of metal-containing hydrogen peroxide solutions

摘要: Unless aqueous acidic hydrogen peroxide solutions are stabilized, an excessive rate of decomposition precludes their use for treatment metal surfaces, such as copper and alloys, during which substantial concentrations catalysts build-up in solution. Regular monitoring the residual stabilizer content would demand sophisticated analytical equipment beyond reach many users. The invention provides a form block sparingly soluble material, whereby can be simply readily effected visually or by simple electrical mechanical detection system. For copper/copper alloys preferred stabilizers p-hydroxybenzoic acid triphenyl carbinol.