103965 Besi(II) sulfat heptahidrat untuk analisis EMSURE® ACS,ISO,Reag. Ph Eur
atau disebut juga : Iron vitriol
Simpan pada +15°C hingga +25°C.
| Assay (manganometric) | 99.5 - 102.0 % |
| Identity | passes test |
| Appearance of solution | passes test |
| Insoluble matter | ≤ 0.01 % |
| pH-value (5 %; water) | 3.0 - 4.0 |
| Chloride (Cl) | ≤ 0.0005 % |
| Phosphate (PO₄) | ≤ 0.001 % |
| Total nitrogen (N) | ≤ 0.001 % |
| Heavy metals as Pb | ≤ 0.005 % |
| As (Arsenic) | ≤ 0.0002 % |
| Ca (Calcium) | ≤ 0.005 % |
| Cr (Chromium) | ≤ 0.005 % |
| Cu (Copper) | ≤ 0.001 % |
| Fe III (Iron III) | ≤ 0.02 % |
| K (Potassium) | ≤ 0.002 % |
| Mg (Magnesium) | ≤ 0.002 % |
| Mn (Manganese) | ≤ 0.05 % |
| Na (Sodium) | ≤ 0.02 % |
| Ni (Nickel) | ≤ 0.005 % |
| Pb (Lead) | ≤ 0.0005 % |
| Zn (Zinc) | ≤ 0.005 % |
| Substance not precipitated by ammonium hydroxide | ≤ 0.1 % |
| Corresponds to ACS,ISO,Reag. Ph Eur | |