4.80364

Sulfuric acid

c(H₂SO₄) = 2.5 mol/l (5 N), Titripur^®

• Synonym(s): Sulfuric acid solution
• Linear Formula: H₂SO₄
• CAS Number: 7664-93-9
• Molecular Weight: 98.08
• Beilstein: 2037554
• MDL number: MFCD00064589
• UNSPSC Code: 12352301

Properties

• Quality Level: 200
• product line: Titripur^®
• form: liquid
• quality: Analyzed in our ISO 17025 accredited QC lab
• reaction suitability: reaction type: Acid-base reactions
• concentration: 2.5 M
• technique(s): titration: suitable
• pH: 1 (20 °C in H₂O)
• density: 1.15 g/cm³ at 20 °C
• storage temp.: 15-25°C
• 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

• Stability and Structure of Potentially Atmospherically Relevant Glycine Ammonium Bisulfate Clusters: This research examines the complex interactions and stability of atmospheric aerosols involving sulfuric acid, providing insights valuable for environmental scientists and chemists studying atmospheric chemistry and pollution mitigation strategies (Hariharan et al., 2024).


• Nanostructured Niobium and Titanium Carbonitrides as Electrocatalyst Supports: Discusses the role of sulfuric acid in synthesizing nanostructured materials for energy applications, relevant for material scientists and researchers in renewable energy technologies (McLeod et al., 2024).


• Synthesis and characterization of hydroxyapatite nanoparticles from calcium hydroxide fouled with gases evolved from the smokestack of the glass industry: Highlights the utility of sulfuric acid in the synthesis of nanoparticles for industrial applications, crucial for researchers in materials science and industrial manufacturing (Abdelmoaty and Mousa, 2024).


• Enabling nucleophilic reactivity in molecular calcium fluoride complexes: This study features sulfuric acid in the activation and stabilization of reactive intermediates in chemical syntheses, pivotal for chemists and pharmaceutical researchers engaged in synthetic chemistry (Struijs et al., 2024).


• Nucleophilic hydrolysis enables HF-etched MXene kilofarad specific capacitance and excellent rate performance: Demonstrates the application of sulfuric acid in enhancing the performance of electrochemical storage devices, relevant for material scientists working on advanced battery technologies (Xu et al., 2024).

Features and Benefits

Accreditation:
This volumetric solution is analyzed by our calibration laboratory D-K-15185-01-00 which is accredited according to DIN EN ISO/IEC 17025 for analysis of amount-of-substance concentrations in volumetric solutions by DAkkS (Deutsche Akkreditierungsstelle - German National Accreditation Body). The accreditation certificate can be found at www.sigmaaldrich.com/ISO17025.

Packaging

SKU-pack size numbers ending with a "3" are SmartChemicals with an RFID tag on the label for seamless data transfer to the instrument, e.g. xxxxxx1003 or xxxxxxx 4003. More information on www.sigmaaldrich.com/SmartChemicals

Analysis Note

Form liquid
Amount-of-substance concentration 2.4875 - 2.5125 mol/L
Measurement uncertainty ± 0.0075 mol/L
Traceability NIST SRM

The concentration is determined by volumetric titration and refers to 20°C.
The amount-of-substance concentration of this volumetric solution is traceable to a primary standard reference material (SRM) from the National Institute of Standards and Technology, Gaithersburg, USA (NIST SRM 723 Tris(hydroxymethyl)aminomethane) by means of volumetric standard Tris(hydroxymethyl)aminomethane (article number 1.02408), certified reference material according to ISO 17034, analyzed by our accredited calibration laboratory of Merck KGaA, Darmstadt, Germany according to DIN EN ISO/IEC 17025. The uncertainty is expressed as expanded measurement uncertainty with a coverage factor k=2 covering a confidence level of 95%.

Note: The titer is a correction factor to correct for variations of the volumetric solution, the titration equipment, the temperature and other laboratory conditions. For correct titration results it is recommended to determine a titer with the laboratory specific equipment and under laboratory specific conditions directly after opening a new bottle and at regular time intervals.

Legal Information

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

Safety Information

• Pictograms: GHS05
• Signal Word: Danger
• Hazard Statements: H290 - H314
• Precautionary Statements: P234 - P280 - P301 + P330 + P331 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Hazard Classifications: Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A
• Storage Class Code: 8B - Non-combustible, corrosive hazardous materials
• WGK: WGK 1