Tetra-Sodium Diphosphate Decahydrate GR 2.5Kg
for analysis EMSURE® ACS,Reag. Ph Eur
Manufacturer: Merck
Catalog ID: 106591.2500
Stock: In Stock
Description
| Catalogue Number | 106591 |
| Replaces | SX0740-1 |
| Synonyms | tetra-Sodium pyrophosphate, TSPP |
| Description | tetra-Sodium diphosphate decahydrate |
Product Information
| CAS number | 13472-36-1 |
| EC number | 231-767-1 |
| Grade | ACS,Reag. Ph Eur |
| Hill Formula | Na₄O₇P₂ * 10 H₂O |
| Chemical formula | Na₄P₂O₇ * 10 H₂O |
| Molar Mass | 446.06 g/mol |
| HS Code | 2835 39 00 |
Physicochemical Information
| Density | 1.82 g/cm3 (20 °C) |
| Melting Point | 988 °C (anhydrous substance) |
| pH value | 9.5 - 10.5 (50 g/l, H₂O, 20 °C) |
| Bulk density | 650 kg/m3 |
| Solubility | 60 g/l (anhydrous substance) |
Storage and Shipping Information
| Storage | Store at +5°C to +30°C. |
Specifications
| Assay (acidimetric) | 99.0 - 103.0 % |
| Insoluble matter | ≤ 0.01 % |
| pH-value (5 %; water, 25 °C) | 9.5 - 10.5 |
| Chloride (Cl) | ≤ 0.001 % |
| Orthophosphate (PO4) | ≤ 0.1 % |
| Sulfate (SO₄) | ≤ 0.005 % |
| Total nitrogen (N) | ≤ 0.001 % |
| Heavy metals (as Pb) | ≤ 0.0005 % |
| Fe (Iron) | ≤ 0.0005 % |
| K (Potassium) | ≤ 0.005 % |
| Corresponds to ACS, Reag. Ph Eur |
