Antonio de ulloa discovery of platinum. ANTONIO DE ULLOA, DISCOVERER OF PLATINUM 2022-10-22
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Antonio de Ulloa is a Spanish explorer and scientist who is known for his discovery of platinum. He was born in Madrid, Spain in 1716, and he became interested in science at a young age.
Ulloa's most significant contribution to science came in 1735, when he was sent to South America as part of a scientific expedition. The expedition was sponsored by the Spanish government, and its goal was to measure the length of a degree of longitude along the equator. While in South America, Ulloa also explored the region and collected specimens of plants and animals for study.
During his travels, Ulloa came across a metal that was unknown to the Europeans at the time. This metal was platinum, and it was found in the area that is now modern-day Colombia. Platinum is a rare and valuable metal that is highly prized for its strength and durability. It is resistant to corrosion and is often used in jewelry, electronics, and other high-tech applications.
Ulloa was the first European to describe platinum in detail, and he published his findings in a book called "The Natural History of Platinum." In this book, Ulloa described the properties of platinum and how it was found in the mines of South America. He also described the process of refining platinum and how it could be used in various applications.
Ulloa's discovery of platinum was a significant event in the history of science, and it helped to establish South America as a source of valuable natural resources. It also helped to increase the understanding of the properties of metals and their uses in various fields.
In addition to his discovery of platinum, Ulloa also made important contributions to the fields of geology, astronomy, and botany. He was a member of the Royal Society of London and the Academy of Sciences in Paris, and he was recognized for his scientific achievements throughout Europe.
Overall, Antonio de Ulloa's discovery of platinum was a significant event in the history of science, and it helped to increase our understanding of the properties of metals and their uses in various fields. His work helped to establish South America as a source of valuable natural resources, and it helped to pave the way for future scientific discoveries.
The History of Platinum
Since the value of gold is predictable and stable, gold has more value than diamonds. However, he was befriended by Martin Folkes, then President of the Royal Society, and by William Watson, who was himself to play a major part in the discovery of platinum. Platinum was discovered in Russia in 1822, and shortly thereafter, it began to be fashioned into decorative chains. An account of these operations will be found in the Philosophical Transactions for 1790. That it is a precious metal of durability like gold and silver. He washed and dried this precipitate ammonium chloroplatinate and successfully caused it to melt, finding that the resulting globules were malleable and could be hammered out into thin sheet, but that it could then not be melted by a burning mirror.
Antonio de Ulloa and the Discovery of Platinum: An Opportunity To Connect Science and History through a Postage Stamp
The names of Messrs Marggraf, Buffon and Morveau are sufficient to give weight to this opinion. The sequence of events that led to this classical work is somewhat complicated, but it stemmed from a report by Don Antonio de Ulloa 1716—1795 , a Spanish mathematician, astronomer and naval officer who took part in a French expedition in 1736 to Quito in Ecuador to measure the arc of a meridian at the equator in order to establish whether or not the earth was an oblate spheroid. Bergman rapidly reorganised the chemistry department, acquired suitable apparatus and combined lectures with laboratory work. Its streak is a shiny silver-gray. White gold is a durable and high quality alternative to sterling silver. Only a highly prized diamond, like a very large stone or an unusual color, will hold its value or become more valuable over time. This attitude, he suggests, is indicated clearly enough by the failure of the great scientific academies in various countries to elect economic entomologists, as such, to their fellowships.
Swedish Contributions to the Discovery of Platinum
The little bit that came he handed over to Scheffer, who, driven by his customary zeal, soon solved the mystery of its nature and showed in a paper that it was a peculiar metal different from all others, almost infusible when alone, just as noble as gold and less pliable. When was carbon first discovered as an element? He published a report in 1748 detailing his time in South America, including the discovery of platinum and some of its properties. Although two of the most outstanding chemists of our time have affirmed this strange result beyond all doubt, still I have sought by experiment to find the solution to this exception, and to my astonishment I have found the answer quite contrary to my expectations. Of the naturally occurring isotopes, only 190 Pt is unstable, though it decays with a half-life of 6. Such an extraordinary circumstance is unique, since all other metals yield to this alkali, no matter what solvent they are dissolved in. Continue reading, if you want to know who discovered this rare element.
Bergman also obtained a precipitate of platinum by means of sal ammoniac and correctly supposed this to be a triple salt. Hunt —co-author of the book Native Platinum nugget, locality Kondyor mine Russia. Some sources suggest that Ulloa took some samples of the metal to Spain. All of our sapphires are cut on our premises and are available loose or mounted in a custom setting. In 1783, a French chemist named François Chabaneau discovered the means to purify platinum. Can platinum be made in a lab? True chemical analyses were made in the 18th century, and in 1789 carbon was listed by Antoine Lavoisier as an element. On the other hand, other sources attribute this merit to the British scientists who brought it to Europe and studied their properties.
Besides judging the content of papers, mathematical referees during this period discussed issues of professionalization and politics in their reports. Metallo-Drugs:Development and Action of Anticancer Agents. The first scientist to isolate platinum in its pure element form was English chemist William Hyde Wollaston in 1803. Wood in 1741, but it had been in use by pre-Columbian Indians. Advertisement When did Antonio de Ulloa Discover platinum? What is Palladium vs platinum? Platinum is found in its pure native form or in platiniridium, a natural alloy of platinum and iridium. What is the atom of platinum? In 1766, he was appointed governor of the Louisiana Territory, but was expelled by French colonists in 1768.
Perhaps this attitude has not notably impeded the advance of entomology; but it does tend to separate the Academies in a rather regrettable way from one of the main currents of biological work in which their influence would be beneficial and from which they themselves might draw some useful lessons. Journal of Professional Services Marketing. The first section of this paper contains a narrative of the proceedings of the Commission appointed for executing the object announced in the title. In short, he was one of the greatest chemists of the eighteenth century. In addition, he was the founder of the Royal Cabinet of Natural History which gave rise to the National Museum of Natural Sciences , the Astronomical Observatory of Cádiz and the first laboratory to investigate metallurgical techniques in the entire country. In the mid 18 th century, platinum was rediscovered by the Spanish scientist, Antonio de Ulloa.
For ten years from 1739 he was managing a mine and a metal works producing copper and a little gold but the enterprise did not succeed and in 1749 he returned to Stockholm to work in the Mining College and also as an assayer at the Mint, while he also gave lectures in chemistry. A History of Platinum and its Allied Metals. Initially, its peer review procedures were at best informal, but by the 1830s they became a formal, required gateway for all Royal Society submissions. Only 160 tons of platinum are mined annually, as opposed to 1,500 tons of gold. Article Synopsis Two major contributions to the discovery of platinum and its identification as a distinct metal were made by Swedish chemists during a short span of years in the eighteenth century when chemistry and metallurgy were flourishing and when several other new elements were isolated and their properties determined. Schufle of the New Mexico Highlands University, who has contributed some additional material from Swedish sources. By the 1850s platinum cufflinks and shirt studs could be found, but technology did not yet exist to pull the metal into fine wires or form intricate shapes.
