Sigma-Aldrich Sulfurous Acid 5-6% So2 Fo

Quality Level

300

Product Line

EMSURE^®

Form

liquid

Concentration

5-6% (H2SO3)

Impurities

≤0.02 ppm Ag (Silver)
≤0.02 ppm Be (Beryllium)
≤0.02 ppm Co (Cobalt)
≤0.02 ppm Cr (Chromium)
≤0.02 ppm Cu (Copper)
≤0.02 ppm Li (Lithium)
≤0.02 ppm Mn (Manganese)
≤0.02 ppm Mo (Molybdenum)
≤0.02 ppm Ni (Nickel)
≤0.02 ppm Pb (Lead)
≤0.02 ppm Sr (Strontium)
≤0.05 ppm Al (Aluminium)
≤0.05 ppm Ba (Barium)
≤0.05 ppm Cd (Cadmium)
≤0.05 ppm Ge (Germanium)
≤0.05 ppm Tl (Thallium)
≤0.05 ppm V (Vanadium)
≤0.05 ppm Zn (Zinc)
≤0.1 ppm Bi (Bismuth)
≤0.1 ppm K (Potassium)
≤0.1 ppm Mg (Magnesium)
≤0.1 ppm Ti (Titanium)
≤0.1 ppm Zr (Zirconium)
≤0.5 ppm As (Arsenic)
≤0.5 ppm Fe (Iron)
≤0.5 ppm Na (Sodium)
≤1 ppm Ca (Calcium)
≤5 ppm Chloride (Cl)

Ign. Residue

≤0.002% (as sulfate)

Density

1.03 g/cm³at 20 °C

Storage Temp.

15-25°C

Related Categories

Acids

Analysis Note

Assay (iodometric, SO₂): 5 - 6 %
Chloride (Cl): ≤ 5 ppm
Ag (Silver): ≤ 0.02 ppm
Al (Aluminium): ≤ 0.05 ppm
As (Arsenic): ≤ 0.5 ppm
Ba (Barium): ≤ 0.05 ppm
Be (Beryllium): ≤ 0.02 ppm
Bi (Bismuth): ≤ 0.1 ppm
Ca (Calcium): ≤ 1 ppm
Cd (Cadmium): ≤ 0.05 ppm
Co (Cobalt): ≤ 0.02 ppm
Cr (Chromium): ≤ 0.02 ppm
Cu (Copper): ≤ 0.02 ppm
Fe (Iron): ≤ 0.5 ppm
Ge (Germanium): ≤ 0.05 ppm
K (Potassium): ≤ 0.1 ppm
Li (Lithium): ≤ 0.02 ppm
Mg (Magnesium): ≤ 0.1 ppm
Mn (Manganese): ≤ 0.02 ppm
Mo (Molybdenum): ≤ 0.02 ppm
Na (Sodium): ≤ 0.5 ppm
Ni (Nickel): ≤ 0.02 ppm
Pb (Lead): ≤ 0.02 ppm
Sr (Strontium): ≤ 0.02 ppm
Ti (Titanium): ≤ 0.1 ppm
Tl (Thallium): ≤ 0.05 ppm
V (Vanadium): ≤ 0.05 ppm
Zn (Zinc): ≤ 0.05 ppm
Zr (Zirconium): ≤ 0.1 ppm
Residue on ignition (as sulfate): ≤ 0.002 %EMSURE is a registered trademark of Merck KGaA, Darmstadt, GermanyGHS05H290 - H314P234 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 - P363