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1.00761

Sulfurous acid

5-6% SO₂, for analysis EMSURE®

Synonym(s):

Sulfur dioxide solution

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About This Item

UNSPSC Code:
12352301
NACRES:
NA.21
Concentration:
5-6% (H2SO3)
Form:
liquid
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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

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

pictograms

Corrosion
GHS05

signalword

Danger

Hazard Classifications

Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1B

Storage Class

8B - Non-combustible, corrosive hazardous materials

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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