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Lead tetrachloride, also known as lead(IV) chloride, has the molecular formula PbCl 4. It is a yellow, oily liquid which is stable below 0 °C, and decomposes at 50 °C. [2] It has a tetrahedral configuration, with lead as the central atom. The Pb–Cl covalent bonds have been measured to be 247 pm and the bond energy is 243 kJ⋅mol −1. [4]
Lead perchlorate trihydrate is produced by the reaction of lead(II) oxide, lead carbonate, or lead nitrate by perchloric acid: . Pb(NO 3) 2 + HClO 4 → Pb(ClO 4) 2 + HNO 3. The excess perchloric acid was removed by first heating the solution to 125 °C, then heating it under moist air at 160 °C to remove the perchloric acid by converting the acid to the dihydrate.
Its chemical formula is usually expressed as Pb(CH 3 COO) 2 or Pb(OAc) 2, where Ac represents the acetyl group. Like many other lead compounds, it causes lead poisoning. Lead acetate is soluble in water and glycerin. With water it forms the trihydrate, Pb(OAc) 2 ·3H 2 O, a colourless or white efflorescent monoclinic crystalline substance.
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Asics generated ¥570.4 billion in net sales and ¥35.2 billion in net income in fiscal year 2023. 50% of the company's income came from the sale of performance running shoes, 33% from other shoes, 6% from apparel and equipment, and 11% from Onitsuka Tiger. 16% of the company's sales were in Japan, 21% in North America, 27% in Europe, 14% in ...
The St. Louis version of "'Hill Brothers Self Service Shoe Store'" went from 3 to 103 stores in the Midwest and South between 1956 and 1971. Volume Shoe originally operated the 103 stores under the "Hill Brothers Self Service" name. Starting in 1972, Volume Shoe began to consolidate stores in proximity and convert others to the "Payless" brand.
The latter is reacted with cold concentrated sulfuric acid (H 2 SO 4) forming PbCl 4 as an oil. [10] Lead(II) chloride is the main precursor for organometallic derivatives of lead, such as plumbocenes. [11] The usual alkylating agents are employed, including Grignard reagents and organolithium compounds: 2 PbCl 2 + 4 RLi → R 4 Pb + 4 LiCl + Pb
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