Calcium Chloride MSDS

[AquaTDV]

I was looking through the pool section of LOWES and noticed a different pelletized calcium chloride by Arch Chemicals. Instead of the usual one by DuPont that I've been using for years. So I called Arch Chemicals to have the MSDS faxed to me.

97% Calcium Chloride
2% Potassum Chloride
1% Sodium Chloride
>1% Water

How do you find the purity of a compound? Do all chemicals need to be listed on the MSDS, or represented as "other"?

The percentage of Calcium Chloride is some of the highest I've seen.

 

[bertoni]

The problem is trace contaminants, which aren't listed. Only a lot of expensive testing can determine whether the product is safe. That said, people seem to be successful with a wide range of calcium chloride products. Personally, I would find something else, though.