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| LC5434 di-Sodium hydrogen phosphate dihydrate buffer substance for chromatography |
| Order number | Packaging | Quantity | Price € |
| AC32434 | Glass bottle | 250 g | 35.78 |
| Product information | |
| Synonyms | Sodium monohydrogen phosphate, Sodium phosphate dibasic |
| Hill Formula | HNa2O4P * 2 H2O |
| Chemical formula | Na2HPO4 * 2 H2O |
| HS Code | 2835 22 00 |
| EC number | 231-448-7 |
| Molar mass | 177.99 g/mol |
| CAS number | 10028-24-7 |
| Chemical and physical data | |
| Solubility | 93 g/l (20 °C) |
| Melting point | 92.5 °C Elimination of water of crystallisation |
| Molar mass | 177.99 g/mol |
| Density | 2.1 g/cm3 (20 °C) |
| Bulk density | 850 – 1000 kg/m3 |
| pH value | 9.0 – 9.4 (50 g/l, H2O, 20 °C) |
| Safety information | |
| Storage class | 10 – 13 Other liquids and solids |
| WGK | WGK 1 slightly water endangering |
| Disposal | 14 Inorganic salts: Container I. Neutral solutions of the these salts: Container D. Before placing in Container D, check the pH with pH-Universal indicator strips (Item No. 109535). |
| Toxicological data | |
| LD 50 oral | LD50 rat 17000 mg/kg |
| Specifications | |
| Identity | passes test |
| pH-value (5 %; water) | 9.0 – 9.2 |
| Assay (acidimetric) | ≥ 99.0 % |
| Self-absorption – 215 nm; 0.2 mol/l; 1 cm; water |
≤ 0.15 |
| – 220 nm; 0.2 mol/l; 1 cm; water | ≤ 0.05 |
| – 254 nm; 0.2 mol/l; 1 cm; water | ≤ 0.02 |