MetaSilicate, lead sodium

Small Quantities of Soluble Salts. Wear nitrile rubber gloves, laboratory coat, and eye protection. Dissolve the soluble lead salt (0.04 mol, e.g., 11 g of lead chloride) in water (200 mL) and add, while stirring, a solution of sodium metasilicate (Na2Si03-5H20, 25 g,... 

Lead and zinc sulfides have been produced by the standard technique in gels. The lead compounds are toxic and should be handled with care. For lead sulfide,25 26 the gel is prepared by mixing sodium metasilicate (sp gr 1.05) with 2.26 N HC1 to reach a pH of 6. A few drops of lead acetate or chloride solution are added to the gel before it is allowed to set. Setting requires about 1 week. The solution is then covered with a 1 M solution of thioacetamide. The thio-acetamide slowly releases hydrogen sulfide into the solution according to the... 

Sodium metasilicate, prepared as above from SiOg andNagCOs, is dissolved in water to obtain a 0.2% solution a 0.5% lead nitrate solution is added with stirring to this solution. After settling, the precipitate is easily filtered off. It is dried on a water bath. A dark-colored preparation can be avoided only by carrying out the procedure in an atmosphere completely free of KgS. 

Aikyi phenoi disuifide Butyraidehyde-aniiine condensation product N,N-Dimethyi-N-cyciohexyiamine Lead dimethyidithiocarbamate Thiocarbamyi suifenamide acceierator, secondary Seienium diethyidithiocarbamate acceierator, secondary EPDM Dipentamethyiene thiuram tetradisulfide acceierator, secondary NBR Dipentamethyiene thiuram tetradisulfide acceierator, secondary NR Dipentamethyiene thiuram tetradisulfide accelerator, secondary SBR Dipentamethyiene thiuram tetradisulfide accelerator, secondary sulfenamides Zinc dibutyi dithiophosphorate acceierator, secondary thiazoles Zinc di butyl dithiophosphorate accelerator, setting refractories Sodium metasilicate pentahydrate accelerator, SR... 

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