Anhydrous Calcium Chloride, 500g, 4-20 Mesh - Laboratory-Grade - Calcium Chloride Powder - The Curated Chemical Collection by Innovating Science

After spilling some water on my floor and not wanting to get a mop to clean it up with, I ordered this. When it arrived, I put a small bowl of this anhydrous calcium chloride next to it, and less than two weeks later, the puddle was gone.

Exactly what it says it is, reagent grade anhydrous calcium chloride. Well packaged and identified, but should have included the MSDS sheet; I had to get that on-line.

I purchased this to use in middle school science investigations. It worked as expected. I was pleased with my purchase.

The particles are of consistent size and it dissolves easily. I can't vouch for purity but it worked fine in my application. I used it to make sodium alginate gell.

Worked great for my lab activity! Exactly what I needed.

For classroom experiments this gives consistent results.

Impure (looked like sand mixed in with it?), and one of my bottles arrived broken. After filtering the my salt solution they produced great crystals though.

Superb Quality! Very Pure!