This question is inspired from a previous question(marked unclear). I don't know the context of that question but I was intrigued by a statement:
Superphosphate is used instead of just phosphate because superphosphate is a compound whereas phosphate is an ion.
How the name "superphosphate" describe a compound? Since it contains the suffix -ate, shouldn't it be considered an ion just like phosphate?
I googled "superphosphate" and it gave results about it being a fertilizer, its various types and its suppliers. Is it a type of phosphate fertilizer or is it just a trademark name? What is the significance of the word "super" in this context?
On some more searching, I came to know that the other name of calcium dihydrogenphosphate is calcium superphosphate. Is it the same superphosphate that we are talking about? Does IUPAC recommends its usage?
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 be used. Searching for "supernitrate" gave 2 results: alibaba and super calcium nitrate which seems to be nitrogenous fertilizers. 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 fertilizers only.
To clarify my questions:
- What is the significance of "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"?