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Sigma-Aldrich Potassium phosphate monobasic
List Price $103.00 Your Price $103.00
Sigma-Aldrich Potassium Phosphate Monobasic, 500g - SIAL (Additional S&H Or Hazmat Fees May Apply)
NETA PART: SIAL-04243-500G
MFG.PART: 04243-500G
UNSPSC: 12161700
Manufacturer: Sigma-Aldrich
grade
anhydrous
Quality Level
200
assay
98-100.5% (calc. to the dried substance)
form
crystalline
quality
meets analytical specification of pH. Eur., NF, E340
impurities
org. volatile impurities, complies (GC)
residual solvents, complies
≤0.001% heavy metals (as Pb)
≤0.04% KMnO4 red. matter (as O)
≤0.2% in water insoluble matters
loss
≤1% loss on drying, 130 °C
pH
4.2-4.5 (20 °C, 5%)
pKa (25 °C)
(1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid)
mp
252.6 °C (lit.)
Related Categories
Phosphates
Salts
Application
Potassium phosphate monobasic was used for separating tobacco protein by using aqueous two-phase extraction.[1]
Biochem/physiol Actions
Potassium phosphate monobasic also referred to as monopotassium phosphate or potassium dihydrogen phosphate is a soluble salt of potassium that serves as a buffering agent. It enhances the solubility of calcium and phosphorus in amino acid plus dextrose solutions and hence assists in improving the mineral balance of parenterally fed low birth weight infants.[2]
Preparation Note
Potassium phosphate monobasic dissolves in 4.5 (approx.) parts of water to yield a solution. It is practically insoluble in alcohol.
wgk_germany
WGK 1
| SKU | SIAL-04243-500G |
|---|---|
| Supplier Part Number | 04243-500G |
| UM | EA |
| UNSPSC | 12161700 |
| Manufacturer | Sigma-Aldrich |
| Temperature | room temp |
| ProductLine | SIAL |
| Qty | 1 |
| MinOrderQty | 1 |
| Weight | 10.000000 |
| Lead Time | 9 |
| Hazardous | Y |
| CAS Number | 7778-77-0 |
| Energy Star | No |
| Green | No |
| Controlled | N |