1．Physical character：Atomic Weight：118.69

 Melting Point：mp：232℃

Boiling Point：bp：2260℃

 2，Specification：

High Puritv Tin：Sn-05, the content of Tin is above 99．999％．The total content of impurity element of Ag，Al，As，Au，Bi，Ca，Co，Cu，Fe，In，Mg，Ni & Pb is bellow 10 ppm；

Ultra Puritv Tin：Sn-06，the content ofTin is above 99．9999％．The total content of impurity element of Ag，AI，Au，Ca，Co，Cu，Fe，Mg，Ni ＆ Zn is bellow l ppm-

3，Physical Size：Rod，Ingot，Powder．    

4，Usage：It is primarily used in the manufacturing of compound semiconductor，high purity alloy

superconductive materials，solder and as a dopant ofcompound semiconduotor.

5，Packing：To be sealed in composite foil bag under vacuum；