Horrorchemie ?

In theory, lithium chloride, lithium bromide and lithium iodide would all be predicted to occur as white crystalline solids. However, when re-crystallising lithium chloride it proved to be hygroscopic.

Here’s a picture of some lithium chloride (I don’t have lithium bromide or lithium iodide):

What does hygroscopic mean?

And for fun, here are some “horrorchemie” photos illustrating the Halloween poem:


Can you identify the coloured chemical compounds? Or the displacement reaction for the wolf?


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