Copper powder (also known as powder) is a copper-zinc alloy as raw material, through a special machining and surface chemical treatment was having scaly structure, bonding compound in floating, showing gold luster, with a metallic paint nature pigments. Gravure because of its brilliant metallic luster, body and heighten dramatic effect, in plastic, senior Illustrated, high-end packaging, cigarette shell, securities and other aspects of printing has been widely used. Thus gloss bronze powder, metallic, surface cover ratio, particle size and distribution of the product and other major technical indicators put forward higher requirements for copper powder ink, traditional craft production of copper powder has been difficult to meet modern requirements, therefore, copper powder-depth research and development has important practical significance. Commonly used method for measuring high levels of copper is still the old iodimetry its large amount of potassium iodide, high cost, time consuming, and the newly developed spectrophotometric problem because copper reagent should not be the determination of high copper content Therefore it is necessary to research and develop new chromogenic reagent. The authors try acetic acid - sodium acetate buffer solution, pH control, as chromogenic reagent with ethylene diamine tetra-acetic acid disodium salt (EDTA), the determination of copper powder of high copper content, while taking advantage of EDTA masking zinc, aluminum and other elements eliminate the interference. Cu ^ 2 + generation and EDTA molar ratio of 1: 1 blue complex, the complex maximum absorption wavelength 2 = 730nm, the molar extinction coefficient of ε = 88.9 price of copper powder, copper ion content in the 12- within 24mg / 50mL showed a good linear relationship, the linear regression equation is A = 0.0354 + 0.02317c copper powder pigment, the linear correlation coefficient R = 0.9995. EDTA using spectrophotometric determination of copper powder of high levels of copper, the result is satisfactory, there is the development and application prospects, especially for the equipment is relatively simple, and small businesses laboratory. Bronze powder paint, Zibo copper powder, pigment Pengfei environmental safety provided by Yiwu Pengfei pigments Limited. Yiwu Pengfei Pigment Co., Ltd. (www.1688.com/company/ywpfyl.html?fromSite=company_site) strong, credible, Jinhua in Zhejiang organic pigment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving Pengfei innovative ideas will lead you hand into the brilliant pigment and a better future!