This question is inspired from a previous question(marked unclear). I don't know about the context of that question but I was intrigued by a statement in that question:
Superphosphate is used instead of just phosphate because superphosphate is a compound whereas phosphate is an ion.
Now, the question is how the name "superphosphate" describe a compound? Since, it contains the suffix -ate, shouldn't it be considered an ion just like a phosphate?
Just to add some more context, I googled "superphosphate" and it gave results about it being a fertilizer, its various types and its suppliers. How come a fertilizer be named superphosphate? Is it because it is enrich in phosphorus? Or is it just a trademark name? What is the significance of the word "super"?
Searching for more, I came to know that calcium dihydrogenphosphate is also known as calcium superphosphate. Is it the same superphosphate that we are talking about? Is it the same as superoxide? Does IUPAC recommends its usage? To broaden the clarification, what is "super" even supposed to mean? Can we say in general that an acidic anion can be called super-anion?
If there are superoxide and superphosphate, are there any other ion containing the name "super" like supersulfate or supernitrate? The names seem to be too absurd/obsolete to even pronounce. Searching for "supernitrate" gave 2 results: alibaba and super calcium nitrate which is suppose to be nitrogenous ferilizers. Searching for "supersulfate" gave me results of a type of cement(One example here). So, I think that the name "super" isn't bound to ferilizers only.
To clarify my questions:
- What is the significance of the name "super" in superphosphate? Is it a real chemical name or a trademark name?
- Is the same as superoxide?
- Are there any other ions containing the name "super"?