Potassium Hydrogen Phthalate 25Grm
Potassium hydrogen phthalate certified secondary standard reference material for pH measurement; directly traceable to primary SRM from NIST/PTB pH(S) = 4.00₅ (25°C) Certipur®. CAS 877-24-7, pH 4.0 (50 g/l, H₂O, 20 °C).
Manufacturer: Merck
Catalog ID: 101965.0025
Stock: In Stock
Description
| Catalogue Number | 101965 |
Product Information
| CAS number | 877-24-7 |
| EC number | 212-889-4 |
| Hill Formula | C₈H₅KO₄ |
| Molar Mass | 204.22 g/mol |
| HS Code | 2917 39 95 |
Applications
| Application | Potassium hydrogen phthalate certified secondary standard reference material for pH measurement; directly traceable to primary SRM from NIST/PTB pH(S) = 4.00₅ (25°C) Certipur®. CAS 877-24-7, pH 4.0 (50 g/l, H₂O, 20 °C). |
Physicochemical Information
| Density | 1.636 g/cm3 |
| Melting Point | 295 - 300 °C |
| pH value | 4.0 (50 g/l, H₂O, 20 °C) |
| Bulk density | 900 kg/m3 |
| Solubility | 80 g/l |
Toxicological Information
| LD 50 oral | LD50 Rat > 3200 mg/kg |
Storage and Shipping Information
| Storage | Store at +15°C to +25°C. |
