What is aluminum chloride hexahydrate?

Are you tired of trying to figure out what the heck aluminum chloride hexahydrate even is? Fear not, my friends. I am here to guide you through this confusing chemical compound with humor and sass.

Let’s Break It Down

Aluminum chloride hexahydrate: three words that individually make sense but when combined, leave most people scratching their heads. Let’s dissect it, shall we?


You may recognize this word from your favorite fizzy drink or trusty cooking pots. That’s right, aluminum is a silvery-white metal commonly used in everyday life. But did you know it has some pretty cool chemical properties too? Like its ability to form a protective layer on its surface cue science nerd music.


This term might bring back bad memories of high school chemistry class (unless you loved chemistry – no judgement). But don’t worry, I won’t be drilling electron configurations into your brain today. Chloride refers to an ion with one negative charge consisting of one chlorine atom.


Hexa-what now? Don’t worry about the fancy terminology just yet – let me explain. The prefix “hexa” means six and hydrate refers to a compound containing water molecules within its crystal structure (fancy talk for there’s water mixed in there).

So together we have aluminum chloride hexahydrate – a compound made up of aluminum ions bonded to chlorine ions with six water molecules thrown in for good measure.

Where Is It Found?

Now that we’ve got the basics down pat (basically), let’s look at where this magical compound can be found.


Believe it or not, chances are high that you’ve already come across aluminum chloride hexahydrate without even realizing it. This compound can be found in antiperspirants and is responsible for reducing sweat production. There’s nothing like slapping some aluminum chloride hexahydrate onto your pits to feel fresh as a daisy!

Water Treatment

Aluminum chloride hexahydrate is also used in water treatment plants to remove impurities. The compound binds with the impurities, forming larger particles that can be more easily filtered out of the water.

Industrial Applications

This miracle compound is also used in a range of industrial applications such as dyeing fabrics or producing pharmaceuticals (that’s right, you’re consuming aluminum chloride hexahydrate every time you take your meds).

How Is It Made?

Now I know what you’re thinking – “this all sounds great but how on earth do they even make this stuff?”. Fear not my curious friend, I’m about to give you an insight into the exciting world of chemical synthesis.

To produce aluminum chloride hexahydrate, we first need to start with pure aluminum metal. This metal is then reacted with hydrochloric acid – this creates hydrogen gas and forms solid aluminum chloride.

But wait, there’s more!

The solid aluminum chloride then reacts with water molecules (remember those hydrates?) which results in our beloved compound: Aluminum Chloride Hexahydrate (ta-daaa!)

Fun Facts About Aluminum Chloride Hexahydrate!

Now I know what you’re thinking – “wow this was so informative but it wasn’t very fun”. Well fear not dear reader because here come some fun facts:

  • Did you know that if heated enough (around 190 degrees Celsius), Aluminum Chloride Hexahydrate will release its six water molecules and transform into Anhydrous Aluminum Chloride (that’s right folks – no more hydrates here)?
  • Our buddy Aluminum Chloride Hexahydrate was discovered way back in 1825 when someone mixed aluminum with hydrochloric acid (cue excited high-pitched shouting).
  • If you ever find yourself needing to dispose of some Aluminum Chloride Hexahydrate, make sure not to pour it down the drain. It can react with the water and create hazardous fumes (trust us – just don’t do it).

In Conclusion

Aluminum chloride hexahydrate may seem like a confusing and intimidating chemical compound but hopefully, after reading this article you’ll have a better understanding of what it is and where you might come across it.

Who knows – maybe one day you’ll even be that person at the dinner party dropping knowledge about hydrates or surprising your friends by correctly guessing which industrial applications use aluminum chloride hexahydrate (cue impressed gasps).

So next time someone asks “what is aluminum chloride hexahydrate?”, hold your head up high and say “I got this”.

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