[Chemical composition] The composition usually contains a similar substance such as Fe, Ir, Pd, Rh, and Ni.
[crystal structure] equiaxed crystal system; 
, with a copper structure; a 0 = 0.392 nm (pure platinum ); Z = 4.
[Form] It is common in irregular fine particles, powder, and grape, and sometimes forms a large aggregate. A single crystal is rare, occasionally a small crystal of the cube {100} or octahedron {111}.
[Physical Properties] White tin, iron content depending on how much the color of a silver white to gray steel; steel gray streaks; metallic luster. No cleavage; the fracture is jagged. Hardness 4 to 4.5. The relative density is 21.5 (pure platinum). Melting point 1774 ° C. It is malleable. Micro-magnetic. A good conductor of electricity and heat.
[genesis and occurrence] Natural platinum is mainly found in magmatic deposits such as copper- nickel sulfide deposits associated with basic and ultrabasic rocks. In addition, it is also common in sand mines.
[Identification characteristics] Tin white, silver white to steel gray, relatively high density, does not oxidize in the air, does not dissolve in common acids.
[Main use] Industrially, the high chemical stability and refractory properties of platinum are used to make advanced chemical vessels or special alloys with nickel. In recent years, platinum group elements have been widely used in the defense industry such as satellites, nuclear submarines, rockets, missiles, telemetry and remote control.
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Wuxi FOFIA Technology Co.,Ltd. , https://www.fofiatag.com