Identity
Classification
- Categories
- Biological Buffers primary
- Applications
- Biochemistry
Technical Data
Properties
| Property | Value | Unit |
|---|---|---|
| Physical state at 20 °C | Solid | — |
| Colour | White powder | — |
| pH value | 2.5 - 5.0 | — |
| Melting point/ Freezing point [°C] | 152 - 154 °C | °C |
| Solubility in water [% weight] | 213.3 g/L | g/L |
These are recorded catalogue property values. Product specification limits, where available, are listed under Specifications.
Specifications
| Parameter | Specification | Unit | Method |
|---|---|---|---|
| Appearance | White powder | — | — |
| Biological buffer, pKa (20 °C) | 7.15 | — | — |
| Assay | Min 99 % | % | alkalimetric |
| Identity | Passes test | — | IR |
| UV absorbance (; 5%; 1 cm; water) | Max 0.05 | — | — |
| Chloride (Cl) | Max 0.005 % | % | — |
| Sulphate (SO4) | Max 0.005 % | % | — |
| Heavy metal | Max 0.0005 % | % | — |
| Sodium (Na) | Max 0.01 % | % | — |
| Loss on drying (105 °C) | Max 0.5 % | % | — |
Packaging
| Pack size | SKU |
|---|---|
| 25 g | RA002783-PK-25G |
| 100 g | RA002783-PK-100G |