phosphorous 专八

Principle and operation technology of removing silicon,phosphorous and arsenic from sodium wolframate is presented.

阐述了钨酸钠溶液中除硅、、砷的原理,并提了具体的操作工艺。

At the same time of adding neutralizing agent the basic fertilizer containing nitrogen, phosphorous and potassium can be added so as to obtain the invented azophoska.

本发明还可在加入中和剂的同时加入含、、钾的基础肥料制成钾复合肥料。

Phosphorous Pentoxide(P 2 O 5 ) ?P 2 O 5 is a kind of light white minicrystal powder which is made by burning phosphorus with excess oxygen.

五氧化（ P 2 O 5 ） ·五氧化在过量氧气存在下燃烧元素得到的白色、微晶体轻质粉末。