作者:R.S. Saxena、O.P. Sharma
DOI:10.1016/0022-1902(66)80276-2
日期:1966.9
between acids (HNO3 and CCl3COOH) and alkali orthovanadate has been investigated by means of electrometric techniques involving glass electrode and conductometric titrations as well as by Job's method of continuous variation. The breaks and inflections in titration curves and maxima from continuous variation study provide cogent evidence for the existence of aggregated polyanions, pyro V2O74−, meta V4O124−
已通过涉及玻璃电极和电导滴定的电化学技术,以及通过Job的连续变化方法,研究了酸(HNO 3和CCl 3 COOH)与原钒酸碱之间的反应过程中形成的各种聚阴离子的化学计量。连续变化研究得出的滴定曲线和最大值的折断和拐点提供了确凿的证据,证明存在聚阴离子,即pyro V 2 O 7 4−,间位V 4 O 12 4−和聚V 10 O 27 4−钒酸盐,分别对应于VO 4 3−:H的比在pH范围(10·20–9·80),(7·20-7·00)和(4·80-3·30)中,+分别为1:1、1:2和1:2·6。