Purity analysis of silicon powder
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How to analyze the purity of industrial silicon powder? Are there any standards?
Silica powder is mainly used to analyze impurities such as iron, aluminum, and calcium. There are 441, 553 and other models.
This post was last edited by zjiris on 2010-9-1 10:38 There are standards, and there are also details on the analysis method standards.: GB/T 2881-2008 There is also a non-ferrous standard "Silicon Powder" in Haichuan that has been submitted for review, specifically targeting the polysilicon industry. (The standard number after passing should be YS/T 724-2009, but I can’t find the download address.) The main difference between the two is the particle size distribution and the silicon and impurity content in the silicon powder.