Potassium chloride bad?

[Coral Dilema]

Looking for a new source of calcium chloride for RHF 2 part formulas. Looking at this:
http://www.homedepot.com/catalog/pdfImages/01/0174ff6b-3a87-4d9a-ab8c-66af6a14c63e.pdf

Anyone see any problems with using this?

 

[disc1]

The KCl isn't really a concern. I don't see anything in that MSDS that throws up any red flags. That said I'm always a little leery of CaCl2 products that aren't being sold expressly for aquarium use if I haven't seen anyone else using it with good results.