what is trisodium phosphate
Trisodium phosphate (TSP) is the inorganic compound with the chemical formula Na 3 PO 4.It is a white, granular or crystalline solid, highly soluble in water producing an alkaline solution. TSPs are used as cleaning agent, lubricant, food additive, stain remover and degreaser.he item of commerce is often partially hydrated and may range from anhydrous Na 3 PO 4, to the dodecahydrate, Na 3 PO4 Â·12 H 2 O. Most often found in white powder form, it can also be called trisodium orthophosphate or simply sodium phosphate. Contents.