Sodium metal organoleads

Several efforts have been carried out to develop a new aqueous derivatization reagent. Phenylation with sodium tetraphenylborate is a promising procedure for the speciation of several metals. Its application for organomercury analysis has been comprehensively studied [10]. Sodium tetrapropylborate is another reagent that has been investigated for determining organolead, tin, and mercury compounds [1]. However, its application is limited because it is not commercially available. 

Organolead compounds are prepared industrially by an electrolysis process. As the alloy process is the first synthetic reaction of organolead compounds, found by Lowig [1], Shapiro named it the Lowig process at the Symposium of Metal-Organic Compounds in 1957 [8]. It is the reaction of a sodium-lead alloy with organic halides. 

Metallation of the organolead halides by lithium, sodium or potassium yields the synthetically useful metal tri-organoleads, whose exact nature is presently not fully understood. 

Na salt Sodium diethyldithiocarbamate. Ditiocarb sodium, INN. Dithiocarb. Cupral. Imuthiol. DTC CsHioNNaSj M 171.262 Antidote (in Wilson s disease). Immunopotentiator. Chelating agent. Used as 0.1% aq. soln. (pH i 8.5) in photometric detn. of Cu(/7) (e 14000), Te, Bi, Mn, As (with Ag-DDTC) for preciptn. and extraction separation of many heavy metals extraction separation of ionic organotin and organolead compds. Cryst. Sol. H2O insol. CHCI3. Mp 94-96° (when anhydr.). 

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