沼泽湿地对污水中NH4+-N和PO3-4-P净化模拟研究 选取三江平原典型沼泽湿地--毛苔草沼泽,通过人工施加氮肥和磷肥来模拟农田污水排入沼泽湿地后,沼泽植物对污水的净化效果.从植物营养吸收角度进行野外实地污水净化模拟... 徐治国,何岩,闫百兴 - 《湿地科学》 被引量: 9发表: 2005年 沼泽湿地对污水中NH4^+-N和PO...
The glass-forming region in the system Li 3PO 4–Pb 3(PO 4) 2–BiPO 4 (Li 2O–PbO–Bi 2O 3–P 2O 5) was determined and a study of ionic conductivity of glasses belonging to this system was carried out. The ionic conductivity, σ, increases substantially with increasing con...
虽然P在两个里都是+5价，但是PO₄ 3-里面涉及到了P与O的配位键，形成配位键之后更加稳定，所以磷酸根是PO₄3-。磷酸根，化学式PO₄ 3-，各种磷酸根离子跟硝酸银反应生成的沉淀颜色不同，在硝酸中的溶解性不同，酸化后跟蛋白溶液的作用也不同。利用这些性质可以鉴别各种磷酸根...
磷酸H3P04，失去了3个H(+)后就变成了PO4（3-），表示负离子，带3个负电荷
PO_4-P 1. Adsorptive characteristic of phosphate (PO4- P), nitrate (NO3- N), ammonia( NH4- N) on suspended particular matter( SPM) of sediment in Taihu Lake were analyzed in laboratory. 以太湖沉积物为悬浮颗粒物(SPM)材料,进行了SPM对磷酸盐(PO_4-P)、氨氮(NH_4-N)、硝酸盐氮(NO_3-...
H3PO4-supple- mented silages as a source of phosphorus for ruminants. 3. Influence of sole feeding of P silages upon food intake and other physiological ch... From feeding trials with lucerne and red clover silage it was concluded that silage containing 1.5 or 3 g P/kg (added to ...
By pulse radiolysis of aquenos solutions of H 3PO 4, H 2PO 4 -, HPO 4 2- and of P 2O 7 4- phosphate radicals formed by attack of OH, O aq - and H were found which have a characteristic absorption spectrum with one band in the visible region ( λ max = 500 nm for orthophos...
角x,怎么变角阿尔法?而且点怎么还有PO?我就当你X是阿尔法吧.当你的点是P吧.经过(-3,-4),所以r=5 这个点在第三象限.所以sinx=y/r=-3/5 cosx=x/r=-4/5 tanx=y/x=4/3
Ca5[(P,V)O4)]3F:Eu3+red-emitting phosphors were synthesized by a solid-state method. The effect of [PO4]3/[VO4]3substitution on the structures and luminescence properties have been discussed. Apatite-type Ca5[(P,V)O4)]3F:Eu3+phosphors are obtained, and the lattice parametersa,cvalues...
H3PO4: Phosphates and Phosphoric Acid – Raw Materials, Technology, and Economics of the Wet Process H3PO4. Von P. Becker. Marcel Dekker, Inc., New York – Basel 1983. 608 S., SFr. 253,– 来自 Wiley 喜欢 0 阅读量: 35 作者: R Gradl ...