There is, to my best knowledge, NO other, more common name for sodium arsenide than sodium arsenide. So that's it.
Sodium Arsenide
The chemical formula for sodium arsenide is Na3As.
Sodium arsenide is a compound consisting of sodium and arsenic ions. It is a highly toxic and dangerous chemical compound that is used in the production of semiconductors and in research laboratories, but it must be handled with extreme caution due to its toxicity.
lithium arsenide
Borax is the common name
Another common name doesn't exist; the code of sodium benzoate is E211.
Iron (III) Arsenide
The common name for the formula Na is sodium.
The common name of sodium bromide is simply bromide.
Sodium Benzoic Acid
I think you mean As2Ba3. That would be Barium Arsenide.
The common name for borax is sodium borate.