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Copper(I) iodide reacts with mercury vapors to form brown copper(I) tetraiodomercurate(II): 4 CuI + Hg → (Cu +) 2 [HgI 4] 2− + 2 Cu. This reaction can be used for the detection of mercury since the white CuI to brown Cu 2 [HgI 4] color change is dramatic. Copper(I) iodide is used in the synthesis of Cu(I) clusters such as [Cu 6 I 7] −. [10]
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Copper fittings for soldered plumbing joints A very large copper seal end cap. The major applications of copper are electrical wire (60%), roofing and plumbing (20%), and industrial machinery (15%). Copper is used mostly as a pure metal, but when greater hardness is required, it is put into such alloys as brass and bronze (5% of total use). [28]
October 14 – Miss Earth Vietnam 2023 held in Ho Chi Minh City From October 20 – COVID-19 is no longer a particularly dangerous infectious disease (group A) October 29 – Decision 3983/QD-BYT, annulling 160 documents on COVID-19 epidemic prevention and control issued by the Ministry of Health , takes effect
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Some copper proteins form oxo complexes, which also feature copper(III). [20] With tetrapeptides, purple-colored copper(III) complexes are stabilized by the deprotonated amide ligands. [21] Complexes of copper(III) are also found as intermediates in reactions of organocopper compounds. [22] For example, in the Kharasch–Sosnovsky reaction.
The university's notable alumni are some of Vietnam's leading politicians: - Mr. Truong Tan Sang (President of the Socialist Republic of Vietnam, 2011–2016 tenure), - Ms. Truong My Hoa (Vice President of the Socialist Republic of Vietnam, 2022–2007 tenure), - Ms. Dang Thi Ngoc Thinh (Vice President of the Socialist Republic of Vietnam, 9/ ...
President Ngo Dinh Diem and family at his home in Hue (Central Viet Nam).jpg; President Ngo Dinh Diem on an inspection tour 350 km from Saigon (December, 1956).jpg; Portrait of Ngô Đình Diệm, from the book Ngo Dinh Diem of Viet-Nam.jpg; President Ngo Dinh Diem with the troops who defeated the Binh-Xuyen at Rung-Sat (May, 1955).jpg