Potassium phosphate dibasic trihydrate
SIAL/P5504 - ReagentPlus®, ≥99.0%
Synonym: Dipotassium hydrogen phosphate trihydrate; Dipotassium phosphate; di-Potassium hydrogen phosphate trihydrate
CAS Number: 16788-57-1
Empirical Formula (Hill Notation): HK2O4P · 3H2O
Molecular Weight: 228.22
EC Number: 231-834-5
MDL Number: MFCD00149926
Linear Formula: K2HPO4 · 3H2O
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: P5504-100G
This image depicts SKU: P5504-100G
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: P5504-1KG
This image depicts SKU: P5504-1KG
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: P5504-500G
This image depicts SKU: P5504-500G
| assay | ≥99.0% |
| form | powder or crystals |
| InChI | 1S/2K.H3O4P.3H2O/c;;1-5(2 |
| InChI key | XQGPKZUNMMFTAL-UHFFFAOYSA |
| pH | 9.2-9.4 (25 °C, 50 g/L) |
| product line | ReagentPlus® |
| Quality Level | 200  |
| SMILES string | O.O.O.[K+].[K+].OP([O-])( |
| solubility | water: 100 mg/mL, clear, colorless |
| storage temp. | room temp |
| Application: | Potassium phosphate dibasic trihydrate has been used in the preparation of potassium phosphate buffer for the resuspension of polyelectrolyte capsules. It has also been used as a buffer during glutaminase‑1 (GLS-1) enzyme assay and GLS-2 enzyme assay. |
| General description: | Potassium phosphate solution have very high buffering capacity that is widely used in molecular biology, biochemistry, and chromatography. Potassium phosphate dibasic trihydrate is a key component of potassium phosphate buffer, phosphate-buffered saline (PBS), and phosphate-buffered EDTA (PBE). It is extensively used in the preparation of biological samples for various biological experiments. Potassium phosphate buffer is also used in methods such as equilibrium dialysis, high-performance liquid chromatography (HPLC), and affinity capillary electrophoresis (ACE) to study the characteristics of drug-protein interactions in the body. Potassium phosphate buffer solutions consist of mixtures of the potassium phosphate monobasic and potassium phosphate dibasic forms. |
| Legal Information: | ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany |
| Packaging: | 1 kg in poly bottle |
| Packaging: | 100, 500 g in poly bottle |
| Packaging: | 5, 10 kg in poly drum |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 1 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | ≥99.0% |
| Storage Temp. | room temp |
| UNSPSC | 12161700 |