Antimony is one kind of nonferrous metal, silvery white solid with polish and crisp character. There are two allotropes, yellow anamorphosis is stable under 90 centigrade. Stability form of antimony is metal anamorphosis. Melting Point :630 oC，Density 62g/ cm3，with badness character in heating. As alloy hardener to be used in metallurgy, accumulator, and war industry and so on, it is also the raw material of oxygen antimony.