Potassium phosphate monobasic
for HPLC,≥99.5%(T)
Reagent
Code: #93297
Alias
Potassium dihydrogen phosphate ; Monopotassium phosphate
CAS Number
7778-77-0
blur_circular Chemical Specifications
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Molecular Information
Weight
136.09 g/mol
Formula
KH₂PO₄
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Registry Numbers
EC Number
231-913-4
MDL Number
MFCD00011401
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Physical Properties
Melting Point
252.6 °C(lit.)
Boiling Point
> 450 °C
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Storage & Handling
Density
2.338 g/mL at 25 °C(lit.)
Storage
room temperature
description Product Description
Used extensively in the food industry as a buffering agent and emulsifier, it helps maintain the stability and texture of processed foods. In the pharmaceutical sector, it serves as an excipient in various medications, aiding in the regulation of pH levels. Additionally, it is employed in fertilizers to provide essential phosphorus and potassium nutrients, promoting healthy plant growth. In laboratories, it functions as a component in buffer solutions for biochemical and molecular biology experiments. It also finds application in water treatment processes to control corrosion and scale formation in pipelines.
format_list_bulleted Product Specification
| Test Parameter | Specification |
|---|---|
| Purity (Neutralization Titration) | 99.5-100% |
| UV Absorption (210 nm A) | 0-0.1 |
| UV Absorption (220 nm A) | 0-0.06 |
| UV Absorption (230 nm A) | 0-0.04 |
| UV Absorption (300 nm A) | 0-0.02 |
| UV Absorption (500 nm A) | 0-0.02 |
| Appearance | White to light yellow powder to crystals |
| Filter Test | Corresponds to Standard |
| pKa (25°C) | (1) 2.15, (2) 6.82, (3) 12.38 (Phosphoric Acid) |
| Solubility (H2O) | Soluble 0.1 g/mL at 25 |
| Test for RP Gradient | Corresponds to Standard |
| X-ray Diffraction | Conforms to Structure, 10% in H2O |
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