Sodium Polytingstate

Sodium polytingstate are also known as sodium metatungstat. Its physical properties are as follows: chemical formula: Na6O39W12, molecular weight: 2968, density: 3.1g/cm3, CB number: CB1128947, CAS number: 12141-67-2.
Sodium Polytingstate because of its high density, non-toxic, easy preparation and can be recycled and other advantages so it has been widely use in many areas. For example sodium polytingstate wildly use in density separation research area of geology, soil science and marine biology. In geology it is mainly used in separation minerals and sedimentary rocks, for the separation of micro-fine pure minerals providing a new way. In soil science it is mainly used in separate large particles of soil aggregates, organic matter and humic acid and so on. In marine biology and is mainly used in the separation of ancient microbial and organic matter. On the other hand, using sodium polytingstate solution to density separation the operation is simple and the effect is stable. What’s more it not changes the physical and chemical properties of substances to be separated.

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