Purest calcium chloride available?

[pjt]

Where can I get the purest calcium chloride? It appears that even pool store calcium chloride comes with fillers and additives, to the point that they're less pure than some snow melt products.

 

[Newdude]

Hey PJ !!
I Amazon'd this one and was happy with it. I've seen many others here using it too. https://www.amazon.com/Puri-Tech-Calcium-Hardness-Increaser/dp/B012B9HU8W/ref=sr_1_16?crid=142NT7NUFCPWE&dchild=1&keywords=calcium+chloride&qid=1607394291&sprefix=Calcium+c,aps,188&sr=8-16&th=1

 

[JamesW]

It appears that even pool store calcium chloride comes with fillers and additives, to the point that they're less pure than some snow melt products.

It's not fillers or additives, it's just water.

The 77% stuff is calcium chloride dihydrate, which means that there are 2 water molecules attached to each molecule of calcium chloride.

 

[JamesW]

Hey PJ !!
I Amazon'd this one and was happy with it. I've seen many others here using it too. https://www.amazon.com/Puri-Tech-Calcium-Hardness-Increaser/dp/B012B9HU8W/ref=sr_1_16?crid=142NT7NUFCPWE&dchild=1&keywords=calcium+chloride&qid=1607394291&sprefix=Calcium+c,aps,188&sr=8-16&th=1

Even though the product is labeled as Calcium Chloride.....100%, it is actually calcium chloride dihydrate at 77%.