You filter the mixture to remove the excess base/carbonate/metal to obtain the pure salt solution. The pure solution can drip through the filter paper into the beaker below, leaving the insoluble ...

so he set about finding the right kind of salt. It turns out that the finer the grain, the better — powdery salt packs tighter and leaves little space for the softened plastic to flow — but ...

Instead you'll get a powder. When about half of the ... out their own practical to prepare a dry soluble salt from an insoluble oxide or carbonate. If used beforehand, the film could reinforce ...