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原文由 poplar_yang(poplar_yang) 发表:
铁精矿粉 is not easy to do with 压片法; because Fe has different forms Fe3O4, Fe2O3, Fe(OH)3, Fe etc. if the proportion between those forms are not firmed stable, the background will be too much different. So 压片法 is not linear perfectly.
For example , 40% Fe3O4 and 80% Fe3O4 , for sure the impurity has big difference.
原文由 Onway(juway) 发表:原文由 poplar_yang(poplar_yang) 发表:
铁精矿粉 is not easy to do with 压片法; because Fe has different forms Fe3O4, Fe2O3, Fe(OH)3, Fe etc. if the proportion between those forms are not firmed stable, the background will be too much different. So 压片法 is not linear perfectly.
For example , 40% Fe3O4 and 80% Fe3O4 , for sure the impurity has big difference.
朋友！你的英语水平不错，每天都坚持学习吗？
若是回答问题中英文对照就更好了！
原文由 Onway(juway) 发表:原文由 poplar_yang(poplar_yang) 发表:
铁精矿粉 is not easy to do with 压片法; because Fe has different forms Fe3O4, Fe2O3, Fe(OH)3, Fe etc. if the proportion between those forms are not firmed stable, the background will be too much different. So 压片法 is not linear perfectly.
For example , 40% Fe3O4 and 80% Fe3O4 , for sure the impurity has big difference.
朋友！你的英语水平不错，每天都坚持学习吗？
若是回答问题中英文对照就更好了！
原文由 markon_yan(markon_yan) 发表:原文由 Onway(juway) 发表:原文由 poplar_yang(poplar_yang) 发表:
铁精矿粉 is not easy to do with 压片法; because Fe has different forms Fe3O4, Fe2O3, Fe(OH)3, Fe etc. if the proportion between those forms are not firmed stable, the background will be too much different. So 压片法 is not linear perfectly.
For example , 40% Fe3O4 and 80% Fe3O4 , for sure the impurity has big difference.
朋友！你的英语水平不错，每天都坚持学习吗？
若是回答问题中英文对照就更好了！
The different forms are FeO,and Fe2O3，in the other word ,only Fe2+ and Fe3+,in my opinion.
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