This is a metal that has a wide range of great uses, but is generally hard to find and very expensive. The platinum protects the pacemaker from corroding or being destroyed by acids inside the body. The Indians of South American have been using it for over 1000 years, mostly as an adornment, but had no idea what it was. While returning to Spain he was captured by the English but took advantage of his stay in Britain to further his education. Pure platinum is a malleable, ductile, lustrous, silver-white metal with a face-centered cubic crystalline structure. After an uprising in 1768 he was forced to leave.
In fact, Watson and Ulloa did meet: during his journey back from America, the Spaniard was arrested offshore by the British navy and jailed in London, where he was later released and recognized by the Royal Society, after it conducted a thorough examination of all his documents. Platinum was established as an element by 1774. It is capable of absorbing gaseous hydrogen. Continue reading, if you want to know who discovered this rare element. Some of the more common catalytic uses are the oxidation of organic vapors in automobile exhaust, the oxidation of ammonia in the production of , and the rearrangement of atoms in petroleum reforming. History Of Platinum Though Antonio de Ulloa is the most commonly sited person when a discussion of who discovered platinum arises, there are other reports that he was not the first to find this metal, and they Spanish were not the first to put it to good use.
Modern knowledge of the metal dates from about 1736, when its existence in was reported by A. Madrid, 1748 , written with Jorge Juan y Santacilla; Noticias americanas: Entretenimiento fisico-histórico sobre América meridional y septentrional-oriental Madrid, 1772 ; Observación en el mar de un eclipse de sol Madrid, 1779 ; Conversaciones de Ulloa con sus tres hijos Madrid, 1795 ; and Noticias secretas de América London, 1826 , written with Juan y Santacilla. A is a device that helps gasoline burn more completely. In 1735, he, along with fellow Spaniard , was appointed to the. Platinum is one of the rarest elements.
Platinum metal can then be removed from the aqua regia in a form known as platinum sponge. That term comes from the fact that they are all relatively inactive. Ulloa participated in the creation of the royal natural history collection 1752 and of the naval observatory at Cádiz 1754. Platinum atoms can be found in a few forms. Ulloa entered the navy in 1733. The French colonists refused to recognize Spanish rule, and expelled Ulloa from Louisiana by a uprising during the. Another is Antonio De Ulla a Spanish explorer who lived in the 1700's, all these people would have pretty strong claims but it is in fact the Pre-Colombian Native South Americans who discovered Platinum in South Africa.
He later wrote a report about the metal, describing how it was mined and used. Platinum also dissolves in very hot alkalis. The number of protons determines the element, but the number of neutrons in the atom of any one element can vary. Platinum is also considered to be a precious metal. On his description of platinum, see Mary Elvira Weeks, Discovery of the Elements, 6th ed. In collaboration with Jorge Juan mentioned above, he also wrote Noticias secretas de América, giving valuable information regarding the early religious orders in Spanish America. He referred to a hard metal that the natives had learned to work with, but the Spanish had not.
They may have thought it a version of gold or silver that had new properties. Platinum is a very rare element, but it was sometimes used by Ancient Civilizations. For example, the in an automobile's exhaust system may contain a platinum metal. When deciding who discovered platinum, one could go by the first time it was used, as with the casket, or the first time it was mentioned, as with Mr. Both of these events led to further scientific investigation of platinum. Later, in a letter, Brownrigg thanked Watson for adding this statement.
For an example of platinum that's not elemental, platinum dioxide is used as a different catalyst to make hydrogenated vegetable oils. Schneider, Peter Armbruster, Christoph-Clemens Sahm, B. It is not attacked by most acids, but will dissolve in aqua regia. The revolt was ultimately crushed by forces under in 1769, establishing Spanish dominance in the colony once and for all. Platinum was already well known to the South American natives, who used it to produce artifacts. It is attacked by the halogens, sulfur, or caustic alkalies. Other sources say the correct year was actually 1748.
In 1751, de Ulloa was elected a foreign member of the. Platinum is one of the elements which has an alchemical symbol, shown below right, alchemy is an ancient pursuit concerned with, for instance, the transformation of other metals into gold. Health effects Platinum dust and some platinum compounds can have mild health effects. The mixture has properties different from those of the individual metals. Columbia was the first source for platinum. In the catalytic converter, only platinum in the elemental form has the right chemical properties to change carbon monoxide into carbon dioxide, for example. He published a report in 1748 detailing his time in South America, including the discovery of platinum and some of its properties.