Water Glass question. Very lost.

[Fishy888]

I would not assume one is more suitable for our use than the other. They are often concerned with different things. Food grade is focused on what might happen to a person eating it if certain impurities (such as lead and arsenic) may be present, while reagent grade focusses on other impurities and, for example, sodium in potassium chloride might prevent it from being reagent grade.

So either one will have the same purity levels?

 

[Randy Holmes-Farley Verified Community Expert]

So either one will have the same purity levels?

No, it means they have different types of purity assessments. Both are likely fine for our purposes, but one should not assume they are the same. Unfortunately, without buying one of the books that lists all of the requirements, it is not always easy to find the exact requirements.