氯化铁（ferric chloride），化学式FeCl3。是一种共价化合物。为黑棕色结晶，也有薄片状，熔点306℃、沸点315℃，易溶于水并且有强烈的吸水性，能吸收空气里的水分而潮解。FeCl3从水溶液析 …

Nov 19, 2019 · But the resulting ferric chloride will be exposed from its formation to water. After investigating a little, I found that anhydrous ferric chloride, when dissolved in water, hydrolysed and …

是共价晶体，分子晶体，这两个关系是什么，如何理解其杂化方式。还是说FeCl3是离子晶体，但它的带结晶水…

2,4-戊二酮可以与三氯化铁发生显色反应吗?什么原理呢?不是说有稳定烯醇式结构才与三氯化铁发生显色反应吗?

Mar 18, 2025 · This question is specifically about the case of $\\ce{FeCl3}$. Our teacher said it's soluble in water, and I looked at it and recalled that neutral coordination compounds/salts aren't soluble in wat...

Dec 31, 2020 · What are the specific conditions for a compound to have in order to show positive $\\ce{FeCl3}$ test? I got this doubt, when I took 2 different test papers having different key for …

Oct 31, 2016 · I have read about the neutral FeCl3 test for Phenols, where a positive test is indicated by the colour of the solution which ranges from green to blue to violet. But which specific derivatives of p...

原理：具有羟基与sp2杂化的碳原子（也就是碳碳双键上的碳原子）相连的结构的化合物大多数都可以与三氯化铁的水溶液发生显色反应。酚羟基直接与芳环相连，相当于稀醇结构，故也有此反应。不同的 …

Jun 11, 2021 · so what do we use to keep the ph of soln neutral – davacd Jun 11, 2021 at 4:31 ow so acc to you freshly made fecl3 is a neutral solution hence no need to add anything else – davacd Jun …

Nov 8, 2022 · The insoluble stuff in suspension is probably a precipitate of $\ce {Fe (OH)3}$ produced by the hydrolysis of $\ce {FeCl3}$ according to $$\ce {FeCl3 + 3 H2O -> Fe (OH)3 + 3 HCl}$$ For …