Disodium phosphate (DSP), or sodium hydrogen phosphate, is the inorganic compound with the formula Na2HPO4. It is one of several sodium phosphates. The salt is known in anhydrous form as well as forms with 2, 7, 8, and 12 hydrates. All are water-soluble white powders; the anhydrous salt being hygroscopic.
|Assay||NLT 98.0% &NMT 100.5% of Na2HPO4 on dried basis|
|Loss on drying||43.0% - 50.0%|
|Insoluble substances||0.4% max|
|Arsenic||16 PPM Max|