lol
You apparently have not done enough research.
I am the "chemist" you so readily disparage.
Love those quotes. Perhaps you would take them away if I reminded you that I have a BA from Cornell in Chemisty and also in biology, and a PhD in chemistry from Harvard, have won a variety of national awards from the American Chemical Society, and have co-invented several prescription drugs that have saved many patients, made my company billions of dollars, and perhaps have helped you or your family.
Yes, love those quotes. lol
Get a grip man. realize where you are: my expert forum. lol
The "ice melt' calcium chloride was analyzed by me for purity and I published the results. They match the high quality products from hobby companies in EVERY impurity. Did you do any such analysis? I did not recommend ice melt. I recommended one national brand of calcium chloride that has many uses.
Maybe read up before coming here and posting disparaging comments.
The "warning" was put into the article BY ME when Dead Sea Works complained. Not because the material is impure (I had a full analysis) but because they want to sell a more expensive product to aquarium companies. They have no idea what is needed an an additive.