Potassium Disulfate GR -1Kg
for analysis EMSURE® ACS
Manufacturer: Merck
Catalog ID: 105107.1000
Stock: In Stock
Description
| Catalogue Number | 105107 |
| Replaces | PX1581; PX1581-1; PX1581-3; PX1581-20; PX1581-5W; PX1581-5 |
| Synonyms | Potassium pyrosulfate |
Product Information
| CAS number | 7790-62-7 |
| EC number | 232-216-8 |
| Grade | ACS |
| Hill Formula | K₂O₇S₂ |
| Molar Mass | 254.33 g/mol |
| HS Code | 2833 29 80 |
Physicochemical Information
| Melting Point | 325 °C |
| pH value | 0.8 (50 g/l, H₂O, 20 °C) |
| Bulk density | 830 kg/m3 |
Storage and Shipping Information
| Storage | Storage temperature: no restrictions. |
Specifications
| Assay (acidimetric, as K₂S₂O₇) | 97.5 - 100.0 % |
| Acidity (as H₂SO₄) | 37.5 - 38.6 % |
| Insoluble and by ammoniumhydroxide precipitated matter | ≤ 0.01 % |
| Chloride (Cl) | ≤ 0.0005 % |
| Phosphate (PO₄) | ≤ 0.001 % |
| Total nitrogen (N) | ≤ 0.002 % |
| Heavy metals (as Pb) | ≤ 0.001 % |
| Al (Aluminium) | ≤ 0.001 % |
| As (Arsenic) | ≤ 0.0005 % |
| Ca (Calcium) | ≤ 0.002 % |
| Fe (Iron) | ≤ 0.0005 % |
| Mg (Magnesium) | ≤ 0.0005 % |
| Na (Sodium) | ≤ 0.01 % |
| Water (H₂O) | ≤ 2.5 % |
| Conforms ACS. |
