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07208

Sigma-Aldrich

Sulfuric acid

puriss., meets analytical specification of Ph. Eur., BP, 95-97%

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Linear Formula:
H2SO4
CAS Number:
7664-93-9
Molecular Weight:
98.08
Beilstein:
2037554
EC Number:
231-639-5
MDL number:
MFCD00064589
UNSPSC Code:
12352106
PubChem Substance ID:
329748368
NACRES:
NA.21

vapor density

<0.3 (25 °C, vs air)

Quality Level

200

vapor pressure

1 mmHg ( 146 °C)

description

Nominally 95-98% H2SO4

grade

puriss.

Assay

95-97%

form

liquid

quality

meets analytical specification of Ph. Eur., BP

impurities

≤0.0002% KMnO4 red. matter (as O)
≤0.0005% heavy metals (as Pb)

ign. residue

≤0.0005%

bp

~290 °C (lit.)

density

1.840 g/mL at 25 °C (lit.)

anion traces

chloride (Cl-): ≤1 mg/kg
nitrate (NO3-): ≤1 mg/kg

cation traces

As: ≤0.1 mg/kg
Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤2 mg/kg
K: ≤50 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Na: ≤50 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Zn: ≤5 mg/kg

suitability

complies for appearance of solution

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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Application


  • Scanning electrochemical microscopy for the differentiation of radical-induced degradation mechanisms in polymer electrolyte membranes.: This study employs sulfuric acid in scanning electrochemical microscopy to differentiate radical-induced degradation mechanisms in polymer electrolyte membranes, crucial for fuel cell development (Thiel & Eichelbaum, 2024).

  • Formation of Chromophores from cis-Pinonaldehyde Aged in Highly Acidic Conditions.: Investigates the formation of chromophores from cis-Pinonaldehyde under highly acidic conditions, contributing to our understanding of atmospheric chemistry and the role of sulfuric acid (Wong et al., 2024).

  • Optimizing cellulose fraction for enhanced utility: Comparative pre-treatment of Agave tequilana Weber var. blue bagasse fiber for sustainable applications.: This research focuses on optimizing the cellulose fraction using sulfuric acid pre-treatment to enhance the utility of Agave tequilana fibers for sustainable applications (Lazaro-Romero et al., 2024).

  • Studying the Structure and Properties of Epoxy Composites Modified by Original and Functionalized with Hexamethylenediamine by Electrochemically Synthesized Graphene Oxide.: Explores the use of sulfuric acid in the synthesis of graphene oxide for modifying epoxy composites, enhancing their structural and mechanical properties (Mostovoy et al., 2024).

  • Inhibition of corrosion on API 5L X52 pipeline steel in acid media by Tradescantia spathacea.: This study examines the effectiveness of Tradescantia spathacea as a corrosion inhibitor for steel in sulfuric acid media, significant for industrial applications (Rodríguez-Torres et al., 2024).

Packaging

In PE-bottles; also available in Glass-bottles (Material no. ending with *-GL), PE canister (Material no. ending with *-H)

Other Notes

The article number 07208-4X2.5L-M will be discontinued. Please order the single bottle 07208-2.5L-M which is physically identical with the same exact specifications.
The article number 07208-6X1L will be discontinued. Please order the single bottle 07208-1L which is physically identical with the same exact specifications.

Pictograms

Corrosion
GHS05

Signal Word

Danger

Hazard Statements

H290,H314

Hazard Classifications

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

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Information

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Jing Li et al.
Journal of chromatography. A, 1404, 39-43 (2015-06-09)
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Self-Ordering of Cell Arrangement of Anodic Porous Alumina Formed in Sulfuric Acid Solution.
Masuda H, et al.
Journal of the Electrochemical Society, 144(5), L127-L130 (1997)
Investigation of the kinetics and mechanism of the anodic oxidation of aniline in aqueous sulfuric acid solution at a platinum electrode.
Mohilner DM, et al.
Journal of the American Chemical Society, 84(19), 3618-3622 (1962)
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