Description
Potassium Phosphate buffers consists of a mixture of monobasic dihdrogen phosphate and dibasic monohydrogen phosphate. These buffers have a very high buffering capacity and are highly soluble in water.
Prepare 800 mL of dH2O in a suitable container.
Add 16.284 g of K2HPO4 to the solution.
Add 0.888 g of KH2PO4 to the solution.
Add distilled water until volume is 1 L. Potassium Phosphate (pH 5.8 to 8.0)
Potassium Phosphate, Monobasic
KH2PO4 F.W. 136.09 CAS #7778-77-0
A.C.S. Specifications:
| Insls. and Calcium, and NH4OH ppt | 0.01% |
| Loss on drying over H2SO4 | 0.2% |
| pH of 5% Solution @ 25°C | 4.1-4.5 |
| Chloride | 0.001% |
| Nitrogen Compounds | 0.001% |
| Sulfate | 0.003% |
| Sodium | 0.005% |
| Iron | 0.002% |
