71959

Sodium sulfate

BioUltra, anhydrous, ≥99.0% (T)

• Synonym(s): Disodium sulfate, Sodium sulphate, Sulfuric acid disodium salt
• Linear Formula: Na₂SO₄
• CAS Number: 7757-82-6
• Molecular Weight: 142.04
• EC Number: 231-820-9
• MDL number: MFCD00003504
• UNSPSC Code: 12352302
• PubChem Substance ID: 57652381
• NACRES: NA.26
• grade: anhydrous
• form: powder or crystals
• solubility: H₂O: 1 M at 20 °C, clear, colorless

Properties

• grade: anhydrous
• Quality Level: 100
• product line: BioUltra
• Assay: ≥99.0% (T)
• form: powder or crystals
• impurities: insoluble matter, passes filter test; ≤0.0005% total nitrogen (N)
• loss: ≤0.2% loss on ignition, 900 °C
• pH: 5.0-7.5 (25 °C, 1 M in H₂O)
• mp: 884 °C (lit.)
• solubility: H₂O: 1 M at 20 °C, clear, colorless
• density: 2.68 g/mL at 25 °C (lit.)
• anion traces: chloride (Cl^-): ≤10 mg/kg; phosphate (PO₄^3-): ≤20 mg/kg
• cation traces: Al: ≤5 mg/kg; As: ≤1 mg/kg; Ba: ≤5 mg/kg; Bi: ≤5 mg/kg; Ca: ≤20 mg/kg; Cd: ≤5 mg/kg; Co: ≤5 mg/kg; Cr: ≤5 mg/kg; Cu: ≤5 mg/kg; Fe: ≤5 mg/kg; K: ≤100 mg/kg; Li: ≤5 mg/kg; Mg: ≤20 mg/kg; Mn: ≤5 mg/kg; Mo: ≤5 mg/kg; Ni: ≤5 mg/kg; Pb: ≤5 mg/kg; Sr: ≤5 mg/kg; Zn: ≤5 mg/kg
• λ: 1 M in H₂O
• UV absorption: λ: 260 nm A_max: 0.020; λ: 280 nm A_max: 0.018
• 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

Safety Information

• Storage Class Code: 13 - Non Combustible Solids
• WGK: WGK 1
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves