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x PbCl 2(l) + BaTiO 3(s) → Ba 1−x Pb x TiO 3 + x BaCl 2; PbCl 2 is used in production of infrared transmitting glass, [14] and ornamental glass called aurene glass. Aurene glass has an iridescent surface formed by spraying with PbCl 2 and reheating under controlled conditions. Stannous chloride (SnCl 2) is used for the same purpose. [15]
It is then converted to the ammonium salt (NH 4) 2 PbCl 6 by adding ammonium chloride (NH 4 Cl). Finally, the solution is treated with concentrated sulfuric acid H 2 SO 4, to separate out lead tetrachloride. This series of reactions is conducted at 0 °C. The following equations illustrate the reaction: PbCl 2 + 2HCl + Cl 2 → H 2 PbCl 6
Phosgenite is a rare mineral consisting of lead carbonate chloride, (PbCl) 2 CO 3. The tetragonal crystals are prismatic or tabular in habit: they are usually colorless and transparent, and have a brilliant adamantine lustre. Sometimes the crystals have a curious helical twist about the tetrad or principal axis. The hardness is 3 and the ...
PbCl 2, PbBr 2 and PbI 2 are commonly used to produce donor centers. Other n-type doping agents such as Bi 2 Te 3 , TaTe 2 , MnTe 2 , will substitute for Pb and create uncharged vacant Pb-sites. These vacant sites are subsequently filled by atoms from the lead excess and the valence electrons of these vacant atoms will diffuse through crystal.
4 Pb + HCl → R 3 PbCl + RH R 4 Pb + SO 2 → R 3 PbO(SO)R R 3 PbCl + 1/2Ag 2 O (aq) → R 3 PbOH + AgCl R 2 PbCl 2 + 2 OH − → R 2 Pb(OH) 2 + 2 Cl −. R 2 Pb(OH) 2 compounds are amphoteric. At pH lower than 8 they form R 2 Pb 2+ ions and with pH higher than 10, R 2 Pb(OH) 3 − ions. Derived from the hydroxides are the plumboxanes: 2 R 3 ...
The compounds are almost insoluble in water, weak acids, and (NH 4) 2 S/(NH 4) 2 S 2 solution is the key for separation of lead from analytical groups I to III elements, tin, arsenic, and antimony. The compounds dissolve in nitric and hydrochloric acids, to give elemental sulfur and hydrogen sulfide, respectively. [ 7 ]
The lead compounds were first fused, and the product then ground to fine powder. The powder was then suspended in drying oils (e.g. linseed), to produce e.g. Pattinson's white (PbCl 2 2Pb(OH) 2) or Turner's yellow (PbCl 2 5-7PbO). Turner's yellow is also known as Patent yellow, Cassel yellow, Montpelier yellow, Kassler yellow, mineral yellow ...
Lead(II) phosphate is an ionic compound with chemical formula Pb 3 (P O 4) 2. Lead(II) phosphate is a long-lived electronically neutral reagent chemical. [2] Despite limited tests on humans, it has been identified as a carcinogen based on tests on animals conducted by the EPA. [3] Lead(II) phosphate appears as hexagonal, colorless crystals or ...