Linear Formula: Na2SO4
CAS Number: 7757-82-6
Molecular Weight: 142.04
MDL number: MFCD00003504
UNSPSC Code: 12352302
EC Index Number: 231-820-9
NACRES: NA.21
grade: ACS
reagent
form: solid
Grade: ACS
reagent
Quality Level: 300
Agency:
reag. ISO
reag. Ph. Eur.
product line: EMSURE®
Assay:
≥99.0% (alkalimetric)
98.5-101% dry basis (alkalimetric)
Form: solid
Potency: >2000 mg/kg
LD50, oral (Rat)
Impurities: ≤0.01%
Insoluble matter
Loss:
≤0.5% loss on drying, 130 °C
≤0.5% loss on ignition, 800 °C
pH: 5.2-8.0
(20 °C, 50 g/L in H2O)
mp: 884 °C
(lit.)
density: 2.68 g/mL at
25 °C (lit.)
bulk density: 1400‑1600 kg/m3
anion traces:
chloride (Cl-): ≤0.001%
phosphate (PO43-): ≤0.001%
cation traces:
As: ≤0.0001%
Ca: ≤0.005%
Fe: ≤0.0005%
K: ≤0.002%
Mg: ≤0.001%
N: ≤0.0005%
heavy metals: ≤0.0005%
heavy metals (as Pb): ≤0.0005%
storage temp.: 2-30°C
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
Linkage
Replaces: SX0761-20
Analysis Note
Assay (alkalimetric): ≥ 99.0 %
Assay (alkalimetric, calculated on dried substance): 98.5 - 101.0 %
Identity: passes test
Appearance of solution: passes test
Insoluble matter: ≤ 0.01 %
Acidity or alkalinity: passes test
pH-value (5 %; water; 25 °C): 5.2 - 8.0
Chloride (Cl): ≤ 0.001 %
Phosphate (PO₄): ≤ 0.001 %
Total nitrogen (N): ≤ 0.0005 %
Heavy metals (ACS): ≤ 0.0005 %
Heavy metals (as Pb): ≤ 0.0005 %
As (Arsenic): ≤ 0.0001 %
Ca (Calcium): ≤ 0.005 %
Fe (Iron): ≤ 0.0005 %
K (Potassium): ≤ 0.002 %
Mg (Magnesium): ≤ 0.001 %
Loss on drying (130 °C): ≤ 0.5 %
Loss on ignition (800 °C): ≤ 0.5 %
Corresponds to ACS, ISO, Reag. Ph Eur
Legal Information
EMSURE is a registered trademark of Merck KGaA, Darmstadt,
Germany
