SX0760E

Sodium sulfate

anhydrous, crystals, Meets ACS Specifications Tracepur^®

• Synonym(s): Disodium Sulfate
• Linear Formula: Na₂SO₄
• CAS Number: 7757-82-6
• Molecular Weight: 142.04
• MDL number: MFCD00003504
• UNSPSC Code: 12352302
• EC Index Number: 231-820-9

Properties

• Quality Level: 200
• product line: Tracepur^®
• Assay: ≥99.0%
• form: crystals
• impurities: ≤0.01% Insoluble matter; ≤1% Mesh size (100 and finer)
• loss: ≤0.5% loss on ignition
• color: white
• pH: 5.2-8.0 (20 °C, 50 g/L in H₂O)
• mp: 884 °C (lit.)
• solubility: 200 g/L
• density: 2.68 g/mL at 25 °C (lit.)
• anion traces: chloride (Cl^-): ≤0.001%; phosphate (PO₄^3-): ≤0.001%
• cation traces: Ca: ≤0.01%; Fe: ≤0.001%; K: ≤0.01%; Mg: ≤0.005%; N: ≤5 ppm; heavy metals: ≤5 ppm
• shipped in: ambient
• storage temp.: room temp
• SMILES string: [Na+].[Na+].[O-]S([O-])(=O)=O
• InChI: 1S/2Na.H2O4S/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q2*+1;/p-2
• InChI key: PMZURENOXWZQFD-UHFFFAOYSA-L

Description

Application

anhydrous, crystals, Meets ACS Specifications Tracepur^®

Analysis Note

Assay99.0% minCalcium (Ca)0.01% maxChloride (Cl)0.001% maxColorWhiteFormCrystalsHeavy Metals (by ICP-OES)5ppm maxInsoluble matter0.01% maxIron (Fe)0.001% maxLoss on ignition0.5% maxMagnesium (Mg)0.005% maxMesh size (10-30)80% minMesh size (10-60)95% minMesh size (100 and finer)1.0% maxNitrogen compounds (as N)5ppm maxPhosphate (PO4)0.001% maxPotassium (K)0.01% maxSuitability for residue analysis (dried 400°/4 hr)To pass testpH of a 5% solution at 25°C5.2-9.2

Legal Information

TRACEPUR is a registered trademark of Merck KGaA, Darmstadt, Germany

Safety Information

• Storage Class Code: 13 - Non Combustible Solids
• WGK: WGK 1
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable