Deskripsi
MERCK – 108087 Potassium Sodium Tartrate Tetrahydrate for Analysis EMSURE
MERCK – 108087 Potassium Sodium Tartrate Tetrahydrate for Analysis EMSURE
| Specifications | |
|---|---|
| Assay (alkalimetric) | : 99.0 – 102.0 % |
| Insoluble matter | : ≤ 0.005 % |
| pH-value (5 %; water; 25 °C) | : 7.0 – 8.5 |
| Chloride (Cl) | : ≤ 0.0005 % |
| Phosphate (PO₄) | : ≤ 0.001 % |
| Sulfate (SO₄) | : ≤ 0.005 % |
| Heavy metals (as Pb) | : ≤ 0.0005 % |
| Ca (Calcium) | : ≤ 0.004 % |
| Cu (Copper) | : ≤ 0.0005 % |
| Fe (Iron) | : ≤ 0.0005 % |
| NH₄ (Ammonium) | : ≤ 0.002 % |
| Pb (Lead) | : ≤ 0.0005 % |
