Sodium sulfate

grade

ACS reagent
anhydrous

Quality Level

200

Assay

≥99.0%

form

powder

impurities

≤0.01% insolubles
≤5 ppm N compounds

loss

≤0.5% loss on ignition

pH

5.2-9.2 (25 °C 5% in water)
5.2-9.2

mp

884 °C (lit.)

density

2.68 g/mL at 25 °C (lit.)

anion traces

chloride (Cl^–): ≤0.001%
phosphate (PO₄^3-): ≤0.001%

cation traces

Ca: ≤0.002%
Fe: ≤0.001%
K: ≤0.002%
Mg: ≤0.001%
heavy metals: ≤5 ppm (by ICP-OES)

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