Copper(II) Chloride

By: Spatula Tzar

Spatula & Sickle

Notice: I am not at all happy with this tutorial. It is outdated and incomplete. It is not especially dangerous, but is likely to be a waste of chemicals. I will try to fix it in due time

Copper(II) chloride, also known as cupric chloride, is an ionic compuond with the formula CuCl2. Anhydrous, it is a dull brown hygroscopic solid. As it absorbs moisture from the air, it changes to a light green color. It burns with a bright green flame.

Copper chunks

Place some chunks of copper in a beaker. I used wire scraps and bits of pipe. Make sure they are large enough to be easily seperated.

HCl added

Add enough hydrochloric acid to cover the copper. Watch how much you use--we want the acid to be the limiting reagent. The solution will quickly turn to a light yellow-green color. Let it sit overnight.

After reaction

Eventually, the mixture will take on a darker yellow-orange color. You may see some dark precipitation. Decant the liquid into another beaker.

After evaporation

Place it on a hot plate, and simmer until it has fully evaporated. Remove it from the hot plate.

Slightly hydrated

Let it sit until it's cool enough to handle. The color will partially change to a blue-green.

Crushed into a powder

Using a scoopula, scrape and crush it into a powder. It should now be a brown color.

Fully hydrated

Let it sit for an hour or so while it absorbs moisture. Check out that hygroscopic action! It's now light green.

~~Spatula Tzar

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