Hi everybody.
I want to try CDS. I have got NaClO2, but have questions about HCl. I could get technical grade, but I cannot get food grade HCl. I am kind of afraid because the internet is telling me for example this: "Technical grade is used for commercial and industrial purposes; however, like many others, it is not pure enough to be offered for food, drug, or medicinal use of any kind." Maybe this is irrelevant information, when using HCl as an activator for CDS, but I just want to be sure there's nothing to worry about.
Can anyone please confirm to me that creating CDS using HCl in technical grade (contains e.g. heavy metals, etc.) is safe and will not cause any harm or side effects? Couldn't the impurity in the HCl also react with the NaClO2 to form some harmful components?