Magnesium chloride flake

[t5Nitro]

Wondering if anyone has used alternate products other than Dead Sea's Mag Flake for DIY mag supplement?

Was looking at this:


Let me know what you guys are using or what you think of the above product. Looks like 100% MgCl₂ from what I can tell.

Screen shot from a customer review:

My third option is to buy the BRS stuff since that's readily available.

 

[t5Nitro]

Or perhaps this one is easy to find

Safe Step 8300 Magnesium Chloride Pet Friendly Crystal Ice Melt 8 lb - Ace Hardware

Safe Step Mag Chloride 8300 is one of the fastest-acting premium ice melters on the market. Made from 100% magnesium chloride hexahydrate, it works in extremely cold temperatures while also being gentler on vegetation and concrete.Find the ICE MELT MAG CHL 8LB JUG at Ace.

www.acehardware.com

 

[Randy Holmes-Farley]

I do not know if it is adequately pure. One concern with such materials is ammonia. If you try an off brand, I’d measure it for ammonia.9.

 

[t5Nitro]

Ah bummer -- I read a handful of posts of people using it so figured it might be alright. I purchased mg sulfate usp from Target and the safe step 8300 from the local hardware store.

Has anyone else found a good source of pure magnesium chloride flake? Find it hard to believe you have to buy what BRS is selling. I'm sure they don't make it lol!