摘要:建立了湿法消解-电感耦合等离子体原子发射光谱内标法测定灰岩中CaO、MgO、K2O、Na2O。以硝酸、氢氟酸、高氯酸混合酸湿法消解灰岩样品,各元素的分析波长分别为Ca 422.673 nm、Mg 280.270 nm、K 766.490 nm、Na 588.995 nm。以钇为内...
这个计算器将确定反应的限制试剂。🛠️ 计算极限试剂 ➜ Instructions To calculate the limiting reagent, enter an equation of a chemical reaction and press the Start button. The reactants and products, along with their coefficients will appear above. Enter any known value for each reactant. ...
复合系数摩尔质量摩尔(克/摩尔)重量(克) 反应物 氯化钾氧化镁 KCl274.5513 MgO140.3044 产品 氧化鉀氯化镁 K2O194.196 MgCl2195.211 这个计算器将确定反应的限制试剂。 Instructions To calculate the limiting reagent, enter an equation of a chemical reaction and press the Start button. The reactants and prod...
任校丹等:X射线荧光光谱法测定烧结矿中Na20、K20、Pb、Zn283DeterminingelementssuchasNa20、K20、Pb、Zninsinter,byusingXRFspectrometricmethRenXiaodanLiuLeiAbstract:UsingLi28407asfluxandLiBrasdiereleasingagent、meltingsample.Thetheoreticalain—fluencecoefficientswereusedtocorrectthematrixeffects.Determiningminorelement...
K2O—SnO2—LiZnVO4系湿敏陶瓷特性的研究 维普资讯 http://www.cqvip.com
C38H33Br5O4P2Re2, triclinic, P1 (no. 2), a = 10.7759(5) A, b = 13.4635(6) A, c = 14.7580(7) A, a = 93.642(2)°,b = 108.372(2)°, g = 91.303(2)°, V = 2025.8 A3, Z = 2,Rgt(F) = 0.0207, w...
纳米Fe2O3-K2O催化剂的制备及其催化乙苯脱氢性能 维普资讯 http://www.cqvip.com
We provide you with a small amount of free samples (less than 500 g), but you need to pay logistics fees and DGM certification fees. When the number of samples exceeds 1 kg, you also need to pay the sample fee. Q: What is OMRI? A: The Organic Materials Review Institute ...
DR IFTS spectra of Fresh and K2 0 poisoning catalysts exposed to NH3 at dif erent temperature 图9a —C分别 为 30 、9O ℃和 200 下NH3 在 新鲜催化剂及 K2O 中毒催化剂表面吸附的红外光谱。 从图9a 可以看 出,NH 在新鲜催化剂及 K:O 中毒催 ...
K2O对氧化物原料合成Al8B4C7的影响