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Lead silicate

Tribasic Lead Silicate. Ttibasic lead siHcate [12397-06-7] 3PbO -Si02, is a reddish yeUow powder, spatingly soluble ia water. Its compositioa... [Pg.72]

Normal and dibasic lead stearate have a stabilising effect but their main uses are as lubricants (see section 12.5.4). Lead silicate is sometimes used in leathercloth formulations but is today of little importance. Other lead compounds now of negligible importance are coprecipitated lead orthosilicates and lead salicylate. [Pg.328]

Tribasic acid, 18 817 Tribasic lead silicate, 14 796 Tribasic lead sulfate, 14 790 for PVC polymers, 25 671 Tribenzoate chiral stationary phase, 6 88t Tribenzylbismuthine, 4 27 Tribenzylether chiral stationary phase, 6 88t... [Pg.967]

Bockris J. O M. and Mellors G. W. (1956). Electric conductance in liquid lead silicates and borates. J. Phys. Chem., 60 1321-1328. [Pg.820]

The lead concentrate must he roasted for effective removal of sulfur and then smelted in a blast furnace. Sulfur is mostly removed hy a sinter process. The galena concentrate or the ore itself, if its impurity content is low, is mixed with silica and other slag-forming reagents and roasted in sinter machines to produce lead oxide, lead silicate, and some metallic lead. The principal reactions are ... [Pg.455]

Similarly, it combines with silica and chromium(VI) oxide at elevated temperatures, forming lead silicate and lead chromate, respectively ... [Pg.474]

Silicon and lead oxide Mixtures of powdered silicon and lead oxide/lead dioxide/red lead burn fiercely and rapidly with the formation of metallic lead and fusible lead silicate. The reactions may be shown in Equation 5.9 ... [Pg.358]

Zinc borate, no Cl Zinc borate, plus Cl Calcium carbonate, plus Cl Lead silicate, no Cl Lead silicate, plus Cl Magnesium silicate, plus Cl Blanc fixe, plus Cl Zinc oxide, no Cl Zinc oxide, plus Cl Antimony oxide, no Cl Antimony o ide, plus Cl Calcium pyrophosphate, plus Cl Lead carbonate, plus Cl Lithopone, plus Cl... [Pg.38]

Glass fibers of various compositions Frits of various compositions Lead silicates Borate compounds... [Pg.86]

Reactions for Spillage and Waste Disposal Pb + Na2SiOj -> PbSiOj + 2Na lead silicate (insoluble)... [Pg.323]

Normal fused silica fibers show among the best figures of merit but need long fiber loops for switching. The incorporation of heavy ions (e.g. lead silicate) increases the nonlinearity but also the absorption. The figure of merits are worse... [Pg.183]

Thermal Stability. The ABS-type polymers containing sufficient DBPF to pass the Underwriter s test were notably less prone to discoloration during processing than unstabilized PVC. On the other hand, they discolored when subjected to processing conditions normally used for conventional ABS polymers. Tribasic lead silicate was as effective as any of the common PVC stabilizers in preventing this discoloration during milling. [Pg.558]

Corrosion protection measures involve washing the metal object with reagents such as sodium sulfate or silicate, which form lead sulfate or lead silicate film. Whenever galvanic effects are envisaged use of insulation is recommended. Sodium silicate has been successfully used to inhibit release of lead from the solder in copper pipes carrying domestic water supplies. [Pg.269]

Lead silicate is insoluble in ammonium acetate solution it will be detected in 3. [Pg.412]

For very specific and limited applications the following lead-based products have been used lead suboxide, lead carbonate and lead cyanamide (mirror coatings), lead silicate (electro disposition primers), dibasic lead phosphate, tribasic lead phosphate silicate, and calcium plumbate [5.51, 5.53]. [Pg.211]

Pb2Si (s) 2PbO Si02 (s) Lead Silicate alpha 04Pb2Si (s) 2PbO SiOz (s)... [Pg.765]

Tungsten trioxide may be used as a yeUow colouring matter in the ceramic industry, since permanent yellow glazes can be produced by fusion at 800° C. vnth lead silicate, -vwth bismuth oxide, or with a mixture of zinc borate and silicate. ... [Pg.205]

Lead is a reactive metal, but its reactivity is somewhat inhibited by the formation of an outer skin of protective compounds. For example, when a freshly cut piece of lead metal is exposed to the air, it quickly reacts with oxygen to form a thin outer layer of lead oxide. This outer layer then prevents further reaction between the metal and oxygen and other constituents of the air. A similar phenomenon occurs when lead metal is placed into water. Compounds present in water react with lead to form an outer skin of lead carbonate, lead silicate, or similar compounds that protect the metal from further attack. This property helps to explain the long popularity of lead for the lining of pipes designed to carry many different kinds of liquids. [Pg.81]

See other pages where Lead silicate is mentioned: [Pg.238]    [Pg.238]    [Pg.558]    [Pg.1009]    [Pg.72]    [Pg.274]    [Pg.515]    [Pg.146]    [Pg.216]    [Pg.216]    [Pg.216]    [Pg.199]    [Pg.558]    [Pg.296]    [Pg.1073]    [Pg.184]    [Pg.158]    [Pg.253]    [Pg.555]    [Pg.236]    [Pg.275]    [Pg.832]    [Pg.832]    [Pg.1747]    [Pg.753]    [Pg.753]    [Pg.753]    [Pg.775]    [Pg.22]   
See also in sourсe #XX -- [ Pg.328 ]

See also in sourсe #XX -- [ Pg.2 , Pg.3 , Pg.4 , Pg.5 , Pg.6 , Pg.7 , Pg.8 , Pg.9 , Pg.10 , Pg.11 , Pg.12 , Pg.13 , Pg.14 , Pg.15 , Pg.16 ]

See also in sourсe #XX -- [ Pg.328 ]

See also in sourсe #XX -- [ Pg.328 ]



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