Lead, carbonate chlorid

Lead Chloride. Lead dichloride, PbCl2, forms white, orthorhombic needles some physical properties are given in Table 1. Lead chloride is slightly soluble in dilute hydrochloric acid and ammonia and insoluble in alcohol. It is prepared by the reaction of lead monoxide or basic lead carbonate with hydrochloric acid, or by treating a solution of lead acetate with hydrochloric acid and allowing the precipitate to settle. It easily forms basic chlorides, such as PbCl Pb(OH)2 [15887-88 ] which is known as Pattinson s lead white, an artist s pigment. 

Rubidium metal alloys with the other alkaU metals, the alkaline-earth metals, antimony, bismuth, gold, and mercury. Rubidium forms double haUde salts with antimony, bismuth, cadmium, cobalt, copper, iron, lead, manganese, mercury, nickel, thorium, and 2iac. These complexes are generally water iasoluble and not hygroscopic. The soluble mbidium compounds are acetate, bromide, carbonate, chloride, chromate, fluoride, formate, hydroxide, iodide. 

Lead usually has excellent resistance to seawater owing to the formation of a passive film of basic carbonate and carbonate-chloride double salts , which should be compared with its behaviour in solutions of alkali chlorides (see salts p. 4 87). 

Both solubilities are low, as we would expect for a salt with a small value of. S sp. Notice that PbCl2 is about 350 times less soluble in the NaCl solution. This makes sense in terms of the common-ion effect. The excess chloride ion suppresses the solubility of Pb by Le Chatelier s principle. The actual concentration of lead in seawater is much less than 4.0 X 10 M. This is because other lead salts are much less soluble than lead(II) chloride. The ocean contains carbonate, for example, and. STsp for lead(II) carbonate is quite small, 7.4 X lO ". ... 

C18-0074. For the following salts, write a balanced equation showing the solubility equilibrium and write the solubility product expression for each (a) lead(II) chloride (b) magnesium carbonate (c) nickel(II) hydroxide and (d) silver acetate. 

Phosgenite (mixture of lead chloride and lead carbonate) White... 

Lead-calcium-silver anodes, 74 777 Lead-calcium-tin alloys, 74 775-776 Lead carbonates, 74 794-795 Lead chalcogenides, 79 157 Lead chloride, 74 785 Lead chromate... 

Bis(l-methylboratabenzene)lead 42 is synthesized in 63% yield by the reaction of LifCsHsBMe) with lead(n) chloride. The X-ray structure analysis of 42 reveals some remarkably short intermolecular contacts from the lead atoms to the ortho-carbon atoms of neighboring molecules which create a tetrameric packing unit. Compound 42 forms weak adducts such as 43 with nitrogen Lewis bases like TMEDA or 4,4 -dimethyl-2,2 -bipyridine.71... 

B—Lead(II) carbonate is insoluble, so its formula should be left as PbC03. Hydrochloric acid is a strong acid so it should be written as separate H+ and Cl ions. Lead(II) chloride, PbCl2, is insoluble, and carbonic acid, H2C03, quickly decomposes to C02 and H20. 

The corrosion of lead has been studied in various media, and this process has been found to be dependent on the properties of the water layer that is present on the metal surface, which is a medium for the dissolution of atmospheric gases, resulting in the formation of lead salts - chlorides, sulfates, and carbonates [24, 141, 167, 330]. Electrochemical AFM images reveal the structure of PbO and PbS04 on lead immersed in water or sulfuric... 

Amino-2-deoxy-D-glucose hydrochloride (15 g, 69.6 mmol) is dissolved in fuming hydrochloric acid (concentrated hydrochloric acid saturated with hydrogen chloride at 0°C, 120 mL), propane-l,3-room temperature for 3 days. Ethanol is added, the solution neutralized with lead carbonate, and the salts filtered. Evaporation affords a solid, which is recrystallized from ethanol-watef-ether (18 g, 84%) mp 204-206°C, [a]D —8.9° (c 1.45, water). 

Borgford, and J. B. Ealy, "Name That Precipitate," Chemical Demonstrations, A Sourcebook for Teachers, Vol. 2 (American Chemical Society, Washington, DC, 1988), pp. 121-123. Blue, brown, red, white, and yellow precipitates are formed when solutions containing +2 cations of mercury, nickel, lead, and barium are mixed with solutions containing carbonate, chloride, iodide, and sulfate anions. Students are asked to name and determine the formula of each precipitate and to write an ionic equation for each reaction. 

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