Merck
All Photos(2)

1.00716

Supelco

Sulfuric acid 25%

for analysis EMSURE®

Synonym(s):
Sulfuric acid solution
Linear Formula:
H2SO4
CAS Number:
Molecular Weight:
98.08
Beilstein:
2037554
MDL number:

Quality Level

product line

EMSURE®

assay

≥25.0% (alkalimetric)

form

liquid

impurities

≤0.010 ppm As (Arsenic)
≤0.010 ppm Be (Beryllium)
≤0.010 ppm Co (Cobalt)
≤0.010 ppm Cu (Copper)
≤0.010 ppm Li (Lithium)
≤0.010 ppm Mn (Manganese)
≤0.010 ppm Sr (Strontium)
≤0.010 ppm V (Vanadium)
≤0.020 ppm Ag (Silver)
≤0.020 ppm Cd (Cadmium)
≤0.020 ppm Ni (Nickel)
≤0.020 ppm Pb (Lead)
≤0.050 ppm Al (Aluminium)
≤0.050 ppm Ba (Barium)
≤0.050 ppm Cr (Chromium)
≤0.050 ppm Ge (Germanium)
≤0.050 ppm Mg (Magnesium)
≤0.050 ppm Mo (Molybdenum)
≤0.050 ppm Tl (Thallium)
≤0.100 ppm Bi (Bismuth)
≤0.100 ppm Fe (Iron)
≤0.100 ppm K (Potassium)
≤0.100 ppm Ti (Titanium)
≤0.100 ppm Zn (Zinc)
≤0.100 ppm Zr (Zirconium)
≤0.2 ppm Nitrate (NO3)
≤0.200 ppm Ca (Calcium)
≤0.5 ppm Chloride (Cl)
≤0.500 ppm Na (Sodium)
≤2 ppm NH? (Ammonium)
≤2 ppm Substances reducing potassium permanganate (as SO2)

ign. residue

≤5 ppm

color

APHA: ≤10

bp

103 °C/1013 hPa

density

1.18 g/cm3 at 20 °C

storage temp.

no temp limit

SMILES string

OS(O)(=O)=O

InChI

1S/H2O4S/c1-5(2,3)4/h(H2,1,2,3,4)

InChI key

QAOWNCQODCNURD-UHFFFAOYSA-N

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Related Categories

Analysis Note

Assay (alkalimetric): ≥ 25.0 %
Colour: ≤ 10 Hazen
Chloride (Cl): ≤ 0.5 ppm
Nitrate (NO₃): ≤ 0.2 ppm
Ag (Silver): ≤ 0.020 ppm
Al (Aluminium): ≤ 0.050 ppm
As (Arsenic): ≤ 0.010 ppm
Ba (Barium): ≤ 0.050 ppm
Be (Beryllium): ≤ 0.010 ppm
Bi (Bismuth): ≤ 0.100 ppm
Ca (Calcium): ≤ 0.200 ppm
Cd (Cadmium): ≤ 0.020 ppm
Co (Cobalt): ≤ 0.010 ppm
Cr (Chromium): ≤ 0.050 ppm
Cu (Copper): ≤ 0.010 ppm
Fe (Iron): ≤ 0.100 ppm
Ge (Germanium): ≤ 0.050 ppm
K (Potassium): ≤ 0.100 ppm
Li (Lithium): ≤ 0.010 ppm
Mg (Magnesium): ≤ 0.050 ppm
Mn (Manganese): ≤ 0.010 ppm
Mo (Molybdenum): ≤ 0.050 ppm
NH₄ (Ammonium): ≤ 2 ppm
Na (Sodium): ≤ 0.500 ppm
Ni (Nickel): ≤ 0.020 ppm
Pb (Lead): ≤ 0.020 ppm
Sr (Strontium): ≤ 0.010 ppm
Ti (Titanium): ≤ 0.100 ppm
Tl (Thallium): ≤ 0.050 ppm
V (Vanadium): ≤ 0.010 ppm
Zn (Zinc): ≤ 0.100 ppm
Zr (Zirconium): ≤ 0.100 ppm
Substances reducing potassium permanganate (as SO₂): ≤ 2 ppm
Residue on ignition: ≤ 5 ppm

Legal Information

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

Pictograms

Corrosion

Signal Word

Danger

Hazard Statements

Hazard Classifications

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

Storage Class Code

8B - Non-combustible, corrosive hazardous materials

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Quality

Enter Lot Number to search for Certificate of Quality (COQ).

Protocols

Analytical Method: Iodine in table salt

Analytical Method: Iodine in table salt

Analytical Method: Color, ADMI as per APHA 2120 F

Method: Spectrophotometric, ADMI weighted ordinate method for colored water and wastewater

Analytical Method: Analytical Quality Assurance, Standard for Sulfide

Preparation of a standard solution for Sulfide

Analytical Method: ADMI Color Measurement for Prove

Photometric determination using the indophenol blue method after extraction with calcium chloride solution

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