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在钽铌化合物化学的知识中有许多空白,这个情况部份是由于这金属一般没有利用起来,由于矿物和含氧盐比较复杂,还由于其化合物一般是难熔的,就需在制备、提纯、反应、测试和其它的处理方面的工作在非常高的温度下进行。而许多简单的化合物如硝酸盐,碳酸盐等看来又不存在。所知主要的钽铌化合物有:
There are many gaps in the chemistry of tantalum-niobium compounds, partly because the metals are generally not utilized, and since the minerals and oxygenates are more complex and because their compounds are generally refractory, it is necessary to prepare, purify Work on reactions, testing, and other handling is done at very high temperatures. And many simple compounds such as nitrates, carbonates, etc. do not appear to exist. The main known tantalum and niobium compounds are: