Potassium phosphate monobasic
SIAL/60229 - tested according to Ph. Eur., anhydrous
Synonym: Kalii dihydrogenophosphas; Monopotassium phosphate; Potassium dihydrogen phosphate; prim.-Potassium phosphate
CAS Number: 7778-77-0
Empirical Formula (Hill Notation): H2KO4P
Molecular Weight: 136.09
EC Number: 231-913-4
MDL Number: MFCD00011401
Linear Formula: KH2PO4
Product Type: Chemical
agency | tested according to Ph. Eur. |
USP/NF | |
assay | 98-100.5% dry basis |
density | 2.338 g/mL at 25 °C (lit.) |
form | crystalline |
grade | anhydrous |
InChI | 1S/K.H3O4P/c;1-5(2,3)4/h; |
InChI key | GNSKLFRGEWLPPA-UHFFFAOYSA |
loss | <2.0% loss on drying |
mp | 252.6 °C (lit.) |
pKa (25 °C) | (1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid) |
Quality Level | 200 ![]() |
SMILES string | [K+].OP(O)([O-])=O |
solubility | water: 208 g/L at 20 °C |
RIDADR | NONH for all modes of transport |
Flash Point(F) | Not applicable |
Flash Point(C) | Not applicable |
Purity | 98-100.5% dry basis |
mp | 252.6 °C (lit.) |
Density | 2.338 g/mL at 25 °C (lit.) |
UNSPSC | 12161700 |