Rearrangements wonât occur if the initially formed carbocation is the most thermodynamically stable out of all the possible isomers. For example, if you use t-butyl bromide in a Friedel-Crafts alkylation, it will not rearrange, since the t-butyl c... This page may be out of date. Save your draft before refreshing this page.
Platinum was first used for minting coins in Spanish-colonized America. Following the discovery of platinum in gold rocks, the Spaniards were unable to use it for a long time because they had no technology for processing this metal.latinum was first used for minting coins in Spanish-colonized America. Following the discovery of platinum in gold rocks, the Spaniards were unable to use it for a long time because they had no technology for processing this metal.
Platinum Uses: Modern Applications. The reason why platinum is today the most valuable of precious metals is because it is required in so many industrial applications. It is estimated that one-fifth of everything we use either contains platinum or requires platinum in its manufacture.Among all the known modern uses of platinum, most of the annual production is consumed by two dominant categories-catalytic converters and fine jewelry.t is estimated that one-fifth of everything we use either contains platinum or requires platinum in its manufacture. Among all the known modern uses of platinum, most of the annual production is consumed by two dominant categories-catalytic converters and fine jewelry.