Lead can also leach into the drinking water supply through older, corroded lead pipes, faucets and solder.
Due to the application of lead in gasoline an unnatural lead-cycle has consisted. Chris Smith Phil Ball plumbing the depths of the scientific story of lead. As the chloride salt is sparingly soluble in water, in very dilute solutions the precipitation of lead II sulfide is achieved by bubbling hydrogen sulfide through the solution.
The relative insolubility of the latter forms a useful basis for the gravimetric determination of fluorine. In car engines lead is burned, so that lead salts chlorinesbrominesoxides will originate. They came no closer to making real gold, but they started to explore the processes of chemical transformation.
Since symptoms of slow lead poisoning are mainly emotional and mental in nature, lead poisoning may be the last thing people suspect.
Characteristics: Lead is a bluish-gray, soft, dense metal that has a bright luster when freshly cut. The other two chalcogenides, lead selenide and lead tellurideare likewise photoconducting.