Sodium sulfate - 31481
Code: 31481
Sodium sulfate
Puriss. p.a., ACS Reagent, Reag. ISO, Reag. Ph. Eur., anhydrous, ≥99.0%
≥99.0%, ACS Reagent, Reag. ISO, Reag. Ph. Eur., anhydrous
CAS Number: 7757-82-6
Linear Formula: Na2SO4
Molar Mass: 142.04 g/mol
EC Number: 231-820-9
MDL Number: MFCD00003504
| Property |
Value |
| Assay |
min. 99.0 % |
| Assay (calculated to the dried substance) |
99 - 101.0 % |
| Loss on ignition (800°C) |
max. 0.5 % |
| Loss on drying (130°C) |
max. 0.5 % |
| Water insoluble matter |
max. 0.01 % |
| PH (5 %, 25 °C) |
5.2 - 8.0 |
| Free acid (as H2SO4) |
max. 0.05 % |
| Free alkali (as NaOH) |
max. 0.03 % |
| Arsenic (As) |
max. 0.0001 % |
| Calcium (Ca) |
max. 20 ppm |
| Iron (Fe) |
max. 5 ppm |
| Potassium (K) |
max. 0.01 % |
| Magnesium (Mg) |
max. 25 ppm |
| Zinc (Zn) |
max. 0.02 % |
| Heavy metals (as Pb) |
max. 5 ppm |
| Chloride (Cl) |
max. 10 ppm |
| Phosphate (PO4) |
max. 0.001 % |
| Total N |
max. 5 ppm |
| Appearance of the solution |
complying |
| Property |
Value |
| Freezing point |
884 °C |
| Density |
2.68 g/cm3 |
