Palladium元素钯.

1、Palladium（钯）（钯） Taishan college Limingzhong（Jet） Discovery of palladium Inorganic chemistry Shandong University In 1803,British scientist Wollaston discovered the element palladium from the platinum ore. An asteroid(小行星) called Pallas was just found at the same time.So he named the element palladium

2、. Property of palladium Inorganic chemistry Shandong University Palladium is silver white ductile metal.It has a great affinity for hydrogen.It can absorb more hydrogen than any other metal Under normal temperature and pressure: 1V Pd 900V H Property of palladium Inorganic chemistry Shandong Univers

3、ity Physical properties: 3 cmg In the platinum group metals,palladium has the lowest melting point and the least density . Property of palladium Inorganic chemistry Shandong University Chemical properties: Dissolved in aquaregia and concentrated nitric acid PdOOd C 2P2 800 2 22 PdClClPd heat Compoun

4、ds of palladium Inorganic chemistry Shandong University PdCl2 + CO+H2O = Pd+ CO2 + 2HCl PdCl2 is reddish- brown solid.Palladium can be prepared in the laboratory from it Reaction： Compounds of palladium Inorganic chemistry Shandong University Palladium on carbon is black powder solid. It is used as

5、the palladium catalyst in catalytic converters in our cars to clean the exhaust Uses of palladium Inorganic chemistry Shandong University Palladium is widely used in many areas: 1.Catalysis 5.Electronics 3.Technology4.Hydrogen storage 2.Jewel 6.Photography Story of palladium Inorganic chemistry Shandong University In 2010,Three scientists win the Nobel Prize for their contributions