Sodium sulfate

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 (PO₄^3-): ≤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