Sodium sulfate
SIGALD/13464 - puriss., meets analytical specification of Ph. Eur., BP, USP, anhydrous, 99.0-100.5% (calc. to the dried substance)
CAS Number: 7757-82-6
Empirical Formula (Hill Notation): Na2O4S
Molecular Weight: 142.04
EC Number: 231-820-9
MDL Number: MFCD00003504
Linear Formula: Na2SO4
Product Type: Chemical
| anion traces | chloride (Cl-): ≤200 mg/kg |
| assay | 99.0-100.5% (calc. to the dried substance) |
| cation traces | As: ≤2 mg/kg |
| Ca: ≤50 mg/kg | |
| Fe: ≤50 mg/kg | |
| Mg: ≤50 mg/kg | |
| Zn: ≤300 mg/kg | |
| density | 2.68 g/mL at 25 °C (lit.) |
| form | crystalline |
| grade | puriss. |
| impurities | acidity or alkalinity, complies |
| residual solvents, complies | |
| ≤0.001% heavy metals (as Pb) | |
| ≤0.04% free alkali (as NaOH) | |
| ≤0.05% free acid (as H2SO4) | |
| InChI | 1S/2Na.H2O4S/c;;1-5(2,3)4 |
| InChI key | PMZURENOXWZQFD-UHFFFAOYSA |
| loss | ≤0.5% loss on drying, 130 °C |
| mp | 884 °C (lit.) |
| pH | 5.2-8 (20 °C, 50 g/L) |
| quality | meets analytical specification of Ph. Eur., BP, USP |
| Quality Level | 200  |
| SMILES string | [Na+].[Na+].[O-]S([O-])(= |
| suitability | complies for appearance of solution |
| Application: | Sodium sulfate (Na2SO4) may be employed as a reagent for the precipitation of globulins during the estimation of proteins in blood. |
| General description: | Sodium sulfate (Na2SO4) can be obtained directly via precipitation from a saturated solution of Na2SO4 at room temperature (20°C). Its crystallization and growth rates at room temperature (20°C) under various conditions have been investigated. Sodium sulfate can be produced during Leblanc process, from sodium chloride and sulfuric acid. |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 1 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | 99.0-100.5% (calc. to the dried substance) |
| mp | 884 °C (lit.) |
| Density | 2.68 g/mL at 25 °C (lit.) |
| UNSPSC | 12352302 |