How to configure a circuit board etching solution? Formulated solution etching circuit boards, according to the quality of the size ratio of 96% -97% of ferric chloride added to water at 1: 1.5 preparation, 200KG 300KG preparation of solid ferric chloride water, stirring to dissolve. The concentration of ferric chloride is not very strict, large concentration of the solution etching rate a little faster, a small concentration of the solution etching rate a little slow. Etching the board of ferric chloride solution is preferably at 30 ~ 50 ℃, the maximum should not exceed 65 ℃. Etching the available bamboo clip-board in ferric chloride solution to roll faster corrosion rate move, sewage treatment ferric chloride, generally 15 ~ 30min board to corrosion good. Configured ferric chloride solution can be used repeatedly, but found the solution to precipitate more, it should reconfigure the ferric chloride solution. Prime Hubei environmental protection factory direct liquid ferric chloride: nature: red-brown liquid. The relative density of 1.42. Easily dissolved in water, ferric chloride powder, acidic aqueous solution, have a corrosive effect on metal oxide. When ferric chloride aqueous dilution, after hydrolysis of ferric hydroxide precipitation, a strong cohesion. Uses: Available Purifying wastewater purification and precipitation agent. It can also be used for radio and printed circuits etched stainless steel industry as an etchant. For sewage treatment, Huaibei ferric chloride to remove heavy metals in water and waste water treatment flocculant phosphate compared to its main features are as follows: replace liquid or solid aluminum sulfate, PAC, PFS and other flocculants, reduce processing costs by more than 30%; good flocculation, sedimentation rate higher than aluminum series flocculant (such as aluminum sulfate, aluminum chloride, etc.), and the formation of alum dense; produce less sludge, saving sludge treatment costs; adapt a wide range of pH value of water, 4 to 12, the optimum pH range of 6 to 10. Ferric chloride, ferric chloride INDUSTRY sewage treatment _ _ Saatchi & Saatchi environmental protection provided by the Hubei Environmental Protection Engineering Co., Ltd. Environmental Engineering Co., Ltd. Hubei Spirit (hbsshb.com) strong, credible, in Wuhan of water treatment chemicals and other industries has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead flourishing into the brilliant green and you work for a better future!