Sodium sulfate

Product Name

Sodium sulfate, BioUltra, anhydrous, ≥99.0% (T)

InChI key

PMZURENOXWZQFD-UHFFFAOYSA-L

InChI

1S/2Na.H2O4S/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q2*+1;/p-2

SMILES string

[Na+].[Na+].[O-]S([O-])(=O)=O

grade

anhydrous

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

Quality Level

100