07208

Sulfuric acid

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

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

Properties

• 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

Description

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.

Safety Information

• pictograms: GHS05
• signalword: Danger
• hcodes: H290,H314
• pcodes: P234 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 - P363
• Hazard Classifications: Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A
• Storage Class: 8B - Non-combustible corrosive hazardous materials
• wgk_germany: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable