As an item of commerce TSP is usually partially hydrated and may vary from anhydrous Na3PO4 to your dodecahydrate Na3PO4·12H2O. Most frequently it can be present in white powder type. It can be named trisodium orthophosphate or simply sodium phosphate. Find out more In 1789 the French chemist Antoine-Laurent Lavoisier https://masons998met7.frewwebs.com/profile