1.00761

Sulfurous acid

5-6% SO₂, for analysis EMSURE^®

• Synonym(s): Sulfur dioxide solution
• UNSPSC Code: 12352301
• NACRES: NA.21

Properties

• product name: Sulfurous acid 5-6% SO₂, for analysis EMSURE^®
• 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/cm³ at 20 °C
• storage temp.: 15-25°C

Description

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 %

Legal Information

EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany

Safety Information

• Pictograms: GHS05
• Signal Word: Danger
• Hazard Statements: H290 - H314
• Precautionary Statements: P234 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 - P363
• Hazard Classifications: Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1B
• Storage Class Code: 8B - Non-combustible, corrosive hazardous materials
• WGK: WGK 1
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable