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For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf
1.12080
Sulfuric acid
98%, for analysis EMSURE®
Synonym(s):
Sulfuric acid
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€57.80
€78.10
€153.00
€160.00
€569.00
€57.80
Estimated to ship on15 December 2025Details
About This Item
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Product Name
Sulfuric acid 98%, for analysis EMSURE®
vapor density
<0.3 (25 °C, vs air)
Quality Level
vapor pressure
0.0001 hPa ( 20 °C)
1 mmHg ( 146 °C)
product line
EMSURE®
Assay
≥98% (alkalimetric)
form
liquid
impurities
≤0.0002% Substances reducing potassium permanganate (as SO2)
ign. residue
≤0.0005%
color
APHA: ≤10
pH
0.3 (25 °C, 49 g/L in H2O)
bp
~290 °C (lit.)
mp
-20 °C
density
1.840 g/mL at 25 °C (lit.)
anion traces
chloride (Cl-): ≤0.00001%
nitrate (NO3-): ≤0.00002%
phosphate (PO43-): ≤0.00005%
cation traces
Ag: ≤0.000002%
Al: ≤0.000005%
As: ≤0.000001%
Ba: ≤0.000005%
Be: ≤0.000001%
Bi: ≤0.00001%
Ca: ≤0.00002%
Cd: ≤0.000002%
Co: ≤0.000001%
Cr: ≤0.000005%
Cu: ≤0.000001%
Fe: ≤0.00001%
Ge: ≤0.000005%
K: ≤0.00001%
Li: ≤0.000001%
Mg: ≤0.000005%
Mn: ≤0.000001%
Mo: ≤0.000005%
NH4+: ≤0.0002%
Na: ≤0.00005%
Ni: ≤0.000002%
Pb: ≤0.000002%
Se: ≤0.0001%
Sr: ≤0.000002%
Ti: ≤0.00001%
Tl: ≤0.000005%
V: ≤0.000001%
Zn: ≤0.000005%
Zr: ≤0.00001%
SMILES string
OS(O)(=O)=O
storage temp.
no temp limit
InChI
1S/H2O4S/c1-5(2,3)4/h(H2,1,2,3,4)
InChI key
QAOWNCQODCNURD-UHFFFAOYSA-N
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This Item | 1.00716 | 1.00731 | 1.01833 |
|---|---|---|---|
| assay ≥98% (alkalimetric) | assay - | assay 95-97% (alkalimetric) | assay 95-97% (alkalimetric) |
| Quality Level 300 | Quality Level 300 | Quality Level 300 | Quality Level 200 |
| form liquid | form liquid | form liquid | form liquid |
| storage temp. no temp limit | storage temp. no temp limit | storage temp. no temp limit | storage temp. no temp limit |
| pH 0.3 (25 °C, 49 g/L in H2O) | pH - | pH 0.3 (25 °C, 49 g/L in H2O) | pH 0.3 (25 °C, 49 g/L in H2O) |
| impurities ≤0.0002% Substances reducing potassium permanganate (as SO2) | 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) | impurities - | impurities ≤2 ppm Substances reducing potassium permanganate (as SO2) |
Application
- Simultaneous determination of monochloropropanediol esters and glycidyl esters in vegetable oils by acidic transesterification-gas chromatography-mass spectrometry.: This study by Wang et al. presents a method for detecting harmful compounds in vegetable oils using sulfuric acid for transesterification, followed by GC-MS analysis (Wang et al., 2022).
- Evaluation of an improved acid hydrolysis-HPLC assay for the acetyl content in chitin and chitosan.: Ng et al. developed an enhanced HPLC method for measuring acetyl content in biopolymers, utilizing sulfuric acid for hydrolysis to ensure accurate quantification (Ng et al., 2006).
Analysis Note
Colour: ≤ 10 Hazen
Chloride (Cl): ≤ 0.00001 %
Nitrate (NO₃): ≤ 0.00002 %
Phosphate (PO₄): ≤ 0.00005 %
Ag (Silver): ≤ 0.000002 %
Al (Aluminium): ≤ 0.000005 %
As (Arsenic): ≤ 0.000001 %
Ba (Barium): ≤ 0.000005 %
Be (Beryllium): ≤ 0.000001 %
Bi (Bismuth): ≤ 0.00001
Ca (Calcium): ≤ 0.00002 %
Cd (Cadmium): ≤ 0.000002 %
Co (Cobalt): ≤ 0.000001 %
Cr (Chromium): ≤ 0.000005 %
Cu (Copper): ≤ 0.000001 %
Fe (Iron): ≤ 0.00001
Ge (Germanium): ≤ 0.000005 %
K (Potassium): ≤ 0.00001 %
Li (Lithium): ≤ 0.000001 %
Mg (Magnesium): ≤ 0.000005 %
Mn (Manganese): ≤ 0.000001 %
Mo (Molybdenum): ≤ 0.000005 %
NH₄ (Ammonium): ≤ 0.0002 %
Na (Sodium): ≤ 0.00005 %
Ni (Nickel): ≤ 0.000002 %
Pb (Lead): ≤ 0.000002 %
Se (Selenium): ≤ 0.0001 %
Sr (Strontium): ≤ 0.000002 %
Ti (Titanium): ≤ 0.00001
Tl (Thallium): ≤ 0.000005 %
V (Vanadium): ≤ 0.000001 %
Zn (Zinc): ≤ 0.000005 %
Zr (Zirconium): ≤ 0.00001
Substances reducing potassium permanganate (as SO₂): ≤ 0.0002 %
Residue on ignition: ≤ 0.0005 %
Date of expiry: see product label
Legal Information
Signal Word
Danger
Hazard Statements
Precautionary 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
Certificates of Analysis (COA)
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Glass bottles are ideal for storing acids because they are inert and offer a long shelf life.
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Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf
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