Identity
Classification
- Categories
- Biological Buffers primary
- Applications
- Biochemistry
Technical Data
Properties
| Property | Value | Unit |
|---|---|---|
| Physical state at 20 °C | Solid | — |
| Colour | White crystalline | — |
| pH value | 10.5 - 12 | — |
| Melting point/ Freezing point [°C] | 167 - 172 °C | °C |
| Boiling point [°C] | 219 - 220 °C | °C |
| Initial boiling point [°C] | 219 °C | °C |
| Final boiling point [°C] | 220 °C | °C |
| Solubility in water [% weight] | Soluble in water | — |
These are recorded catalogue property values. Product specification limits, where available, are listed under Specifications.
Specifications
| Parameter | Specification | Unit | Method |
|---|---|---|---|
| Appearance | White crystalline powder | — | — |
| at 280 nm | Max 0.02 | — | — |
| at 300 nm | Max 0.02 | — | — |
| at 405 nm | Max 0.004 | — | — |
| at 430 nm | Max 0.004 | — | — |
| Assay | Min 99.5 % | % | HClO4 titration |
| pH | 10 - 11 | — | — |
| Melting point | 169 - 171 °C | °C | — |
| Chloride (Cl) | Max 0.001 % | % | — |
| Sulphated ash | Max 0.01 % | % | — |
| Water | Max 0.5 % | % | — |
| at 260 nm | Max 0.02 | — | — |
Available grades
4 grades of this substance are listed. Each grade is a separate product with its own specifications, pack sizes and documents.
Packaging
| Pack size | SKU |
|---|---|
| 100 g | RA002652-PK-100G |
| 500 g | RA002652-PK-500G |
| 5 kg | RA002652-PK-5KG |