Trisodium Phosphate TSP Techical Grade

Trisodium Phosphate(TSP, E339) is a cleaning agent, food additive, stain remover and degreaser. Sodium phosphate tribasic is a white, granular or crystalline solid, highly soluble in water producing an alkaline solution. The item of commerce is often partially hydrated and may range from Anhydrous Trisodium Phosphate, Na3PO4, to the Trisodium Phosphate dodecahydrate, Na3PO4·12H2O. Most often found in white powder form, it can also be called trisodium orthophosphate or just plain sodium phosphate. Trisodium Phosphate was at one time extensively used in formulations for a wide variety of consumer grade soaps and detergents, but ecological problems have largely ended that practice, at least in the western world. Substitutes are not as effective, but the raw chemical can be bought in bulk to add to underpowered detergents. Trisodium Phosphate Specifications Product Name Trisodium Phosphate Anhydrous TSP Trisodium Phosphate Dodecahydrate TSP.12H2O Appearance White Powder Crystal Particle Trisodium Phosphate Na3PO4  (on dried material) %(w/w) min 97.0 min 97.0 Water Insoluble % (w/w) max 0.2 max 0.2 Arsenic (As) mg/kg max 3 max 3 Fluoride (as F) mg/kg max 50 max 50 Heavy Metal (as Pb) mg/kg max 10 max 10 Loss on lgnition % (w/w) max 2 45-57 Trisodium Phosphate Functions 1. Cleaning The major use for Trisodium Phosphate is in cleaning agents. The pH of a 1% solution is 12, and the Trisodium Phosphate solution is sufficiently alkaline to saponify grease.