作者:N. B. Egorov、E. A. Popova、O. Kh. Poleshchuk
DOI:10.1134/s0018143918020078
日期:2018.3
BaS2O3. The treatment of the photolysis product of BaS2O3 solutions, which was separated by centrifugation, with n-hexane showed that the electron spectrum of the extract did not contain absorption bands characteristic of dissolved elemental sulfur. Its absence from the solid-phase products of photolysis is a distinctive feature, as opposed to the products of photolysis of the aqueous solutions of lead
BaS2O3·H2O 的合成是按照已发表的程序 [6] 进行的。将浓度为 7.5 × 10-3 mol/L、体积为 40 mL 的 BaS2O3 溶液在室温下用 DRT-240 高压汞灯的全光照射 40 min。通过离心从溶液中分离得到的沉淀,用水洗涤三次,然后用乙醇洗涤,并在真空干燥器中干燥。多次重复沉淀制备过程以积累足够用于分析的量。在 ICAP 6300 Duo 原子发射光谱仪上测定光解前后的钡离子浓度。衍射图记录在 Rigaku Miniflex 600 衍射仪上。红外光谱在 Nicolet 6700 傅里叶变换红外光谱仪上测量,范围为 400 至 4000 cm-1。将样品制备成含有 KBr 的颗粒。使用 Sentix 81 组合电极在 inoLab pH/Ion 740 WTW 离子计上测量 pH 值。通过光解 BaS2O3 水溶液获得的沉淀物的衍射图由于 BaSO4 相而仅包含线(PDF