Potassium phosphate monobasic
SIGALD/60220 - buffer substance, anhydrous, puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., 99.5-100.5%
Synonym: 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
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material.
This image depicts SKU: 60220-500G
This image depicts SKU: 60220-500G
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material.
This image depicts SKU: 60220-1KG
This image depicts SKU: 60220-1KG
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material.
This image depicts SKU: 60220-2.5KG
This image depicts SKU: 60220-2.5KG
| agency | reag. ISO |
| reag. Ph. Eur. | |
| anion traces | chloride (Cl-): ≤5 mg/kg |
| sulfate (SO42-): ≤30 mg/kg | |
| assay | 99.5-100.5% |
| cation traces | As: ≤0.5 mg/kg |
| Ca: ≤10 mg/kg | |
| Cd: ≤5 mg/kg | |
| Co: ≤5 mg/kg | |
| Cr: ≤15 mg/kg | |
| Cu: ≤5 mg/kg | |
| Fe: ≤5 mg/kg | |
| heavy metals: ≤0.001% (by ICP) | |
| Mg: ≤5 mg/kg | |
| Mn: ≤5 mg/kg | |
| Na: ≤50 mg/kg | |
| Ni: ≤5 mg/kg | |
| Pb: ≤5 mg/kg | |
| Zn: ≤5 mg/kg | |
| density | 2.338 g/mL at 25 °C (lit.) |
| form | crystalline |
| grade | ACS reagent |
| anhydrous | |
| puriss. p.a. | |
| impurities | ≤0.001% total nitrogen (N) |
| InChI | 1S/K.H3O4P/c;1-5(2,3)4/h; |
| InChI key | GNSKLFRGEWLPPA-UHFFFAOYSA |
| loss | ≤0.2% loss on drying, 105 °C |
| mp | 252.6 °C (lit.) |
| pH | 4.2-4.5 (20 °C, 5%) |
| pKa (25 °C) | (1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid) |
| Quality Level | 100  |
| SMILES string | [K+].OP(O)([O-])=O |
| solubility | water: 0.5 g/10 mL, clear, colorless to light yellow |
| Application: | Potassium phosphate monobasic has been used: • to prepare the working luminol solution to study the prooxidant activity in the chemiluminescent system luminol–H2O2 • in phosphate buffer saline (PBS) to culture embryonic stem cells (ESCs) and generate embryoid bodies • in PBS to prepare polydimethylsiloxane (PDMS) substrate |
| General description: | Potassium phosphate is widely used in buffers to prepare biological samples and examine biological interactions. |
| Packaging: | 1, 2.5, 5 kg in poly bottle |
| Packaging: | 500 g in poly bottle |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 1 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | 99.5-100.5% |
| mp | 252.6 °C (lit.) |
| Density | 2.338 g/mL at 25 °C (lit.) |
| UNSPSC | 12352300 |