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Preparation Of Cuprous Oxide By Using Ferric Chloride Etching Waste Liquid

In the circuit board etching, electroplating and other industries, a large amount of copper-containing waste liquid is generated, and in particular, the amount of copper-containing ferric chloride etching waste liquid is large, and the copper recovery process is very complicated. The technology can separate the copper in the etching liquid in the form of cuprous

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The Difference Between Zinc Oxide And Titanium Dioxide Sunscreen

Both zinc oxide and titanium dioxide sunscreens are specifically designed to protect the skin from UV radiation damage. Although these metallic media block UVA and UVB radiation, they are different from chemical sunscreens that are immersed in the skin and absorb light. Although titanium has good stability and reflectivity, suitable zinc oxide particles provide the

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