Unlike gold, however, these metals do not occur in masses large enough to mine. Continue reading, if you want to know who discovered this rare element. For a complete range of elements in their time periods check the related link below. De Ulloa is often given credit for discovering platinum on the basis of the report he wrote. Its abundance is estimated to be about 0. Discovery and naming The first known reference to platinum can be found in the writings of Italian physician, scholar, and poet Scaliger 1484-1558.
Seville, Spain, 12 January 1716; d. De Ulloa often gets credit for discovering platinum because he collected samples of platinum, which he brought back to Europe, and he wrote a report describing the metals mining techniques and various uses. The making of catalysts is. A catalyst is a substance used to speed up or slow down a chemical reaction without undergoing any change itself. Ulloa as this was the time it was first named. Ancient Egyptians and Pre-Columbian Indian civilizations already valued it as a very important element.
If you look around for the answer as to who discovered platinum, you are going to find a few different answers. A process discovered about 1803 by W. Ulloa would return to Spain in 1745. . Occurrence in nature The platinum metals are often found together in nature. Platinum was established as an element by 1774. The platinum group metals are sometimes referred to as the noble metals.
Platinum : 1,739 °C : 4,170 °C density: 21. It is not known if they knew it was a different metal, or if they thought it to be a mix of gold and silver occurring naturally. Platinum is used as a catalyst in a wide variety of chemical reactions. For example, some people have to have pacemakers implanted into their chests. Albert, and Wilkinson, Geoffrey 1988. The Indians of South American have been using it for over 1000 years, mostly as an adornment, but had no idea what it was. Native Platinum nugget, locality Kondyor mine Russia.
An alloy is made by melting and mixing two or more metals. 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. Platinum is also used in small amounts in alloys. This is the case in your catalytic converter. Estimated Crustal Abundance: 5×10 -3 milligrams per kilogram Estimated Oceanic Abundance: Not Applicable Number of Stable Isotopes: 5 Ionization Energy: 9 eV Oxidation States: +4, +2.
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. Around two tons of ore has to be mined to obtain enough platinum to make a ring. Why was it given its name and symbol? Those who first used platinum thought it was silver or underdeveloped gold. He held this position until 1764. In the +2 and +3 oxidation states, platinum forms coordination complexes bonded to carbon, nitrogen, phosphorous, oxygen, and sulfur donor atoms. The name Platinum, originates from the Spanish word 'Platina' which means silver.
Platinum is found in nature alloyed with the other metals of the so-called platinum group, found in Group 10 of the ; the other five metals in this group are , , , , and. Advanced Inorganic Chemistry, 5th edition. The next largest producer was , producing only 8,260 kilograms in 1996. Platinum is also used in a device called a catalytic converter, a device found in the exhaust systems of most cars. The ship upon which Ulloa was travelling was captured by the British, and he was taken to England as a prisoner. Isotopes Six naturally occurring isotopes of platinum exist: platinum-190, platinum-192, platinum-194, platinum-195, platinum-196, and platinum-198. However, according to Leslie B.
In a short time, through the influence of the president of this society, he was released and able to return to Spain. It was not only beautiful to look at, but resistant to corrosion rusting. Platinum catalysts are also used to make compounds that end up as fertilizers, plastics, synthetic fibers, drugs and pharmaceuticals, and dozens of other everyday products. By: Leah Clements The Discovery of Platinum An Introduction My Element My Element In The Periodic Table Platinum's atomic number is 78, along with 195. He referred to a hard metal that the natives had learned to work with, but the Spanish had not. Later, in a letter, Brownrigg thanked Watson for adding this statement. The most important of the alloys are those with iridium.
Ulloa, a Spanish naval officer, mathematician, astronomer, and traveler, is commonly credited as the first scientist to describe platinum as a particular metal. Conclusions: What anyone decides is up to them, or if in school, might be up to what the teachers thinks is the best reference. The specific layer he found, named the , contains around 75% of the world's known platinum. Columbia was the first source for platinum. Counterfeiters in Russia plated platinum coins with gold and passed them around.
An artificial pacemaker is a device that makes sure the heart beats in a regular pattern. Thuma from Gesselschaft fÃ¼r Schwerionenforschung Darmstadt, Germany in … 1981. Platinum is a soft, dense, ductile metal that is very resistant to corrosion. While serving in from 1735 to 1746, de Ulloa collected samples of platinum. Their writings … related to this expedition refer to the new metal as Platinum. This is a metal that has a wide range of great uses, but is generally hard to find and very expensive. Scientists were fascinated by its physical properties.