1.00732

Schwefelsäure (95–97 %)

for analysis (max. 0.005 ppm Hg) EMSURE^® ACS,ISO,Reag. Ph Eur

• Synonym(e): Schwefelsäure
• Lineare Formel: H₂SO₄
• CAS-Nummer: 7664-93-9
• Molekulargewicht: 98.08
• Beilstein: 2037554
• MDL-Nummer: MFCD00064589
• UNSPSC-Code: 12352301
• EG-Index-Nummer: 231-639-5

Eigenschaften

• Qualität: ACS reagent
• Qualitätsniveau: 300
• Agentur: reag. ISO; reag. Ph. Eur.
• Dampfdichte: <0.3 (25 °C, vs air)
• Dampfdruck: 0.0001 hPa ( 20 °C); 1 mmHg ( 146 °C)
• Produktlinie: EMSURE^®
• Assay: 95-97% (alkalimetric)
• Form: liquid
• Glührückstand: ≤5 ppm
• Farbe: APHA: ≤10
• pH-Wert: 0.3 (25 °C, 49 g/L in H₂O)
• bp: ~290 °C (lit.)
• mp (Schmelzpunkt): -20 °C
• Dichte: 1.840 g/mL at 25 °C (lit.)
• Anionenspuren: chloride (Cl^-): ≤0.1 ppm; nitrate (NO₃^-): ≤0.2 ppm; phosphate (PO₄^3-): ≤0.5 ppm
• Kationenspuren: Ag: ≤0.02 ppm; Al: ≤0.05 ppm; As: ≤0.01 ppm; Ba: ≤0.05 ppm; Be: ≤0.01 ppm; Bi: ≤0.1 ppm; Ca: ≤0.2 ppm; Cd: ≤0.02 ppm; Co: ≤0.01 ppm; Cr: ≤0.05 ppm; Cu: ≤0.01 ppm; Fe: ≤0.1 ppm; Ge: ≤0.05 ppm; Hg: ≤0.005 ppm; K: ≤0.1 ppm; Li: ≤0.01 ppm; Mg: ≤0.05 ppm; Mn: ≤0.01 ppm; Mo: ≤0.05 ppm; NH₄⁺: ≤2 ppm; Na: ≤0.5 ppm; Ni: ≤0.02 ppm; Pb: ≤0.02 ppm; Sr: ≤0.02 ppm; Ti: ≤0.1 ppm; Tl: ≤0.05 ppm; V: ≤0.01 ppm; Zn: ≤0.05 ppm; Zr: ≤0.1 ppm; heavy metals (as Pb): ≤1 ppm
• SMILES String: OS(O)(=O)=O
• Lagertemp.: no temp limit
• InChI: 1S/H2O4S/c1-5(2,3)4/h(H2,1,2,3,4)
• InChIKey: QAOWNCQODCNURD-UHFFFAOYSA-N

Beschreibung

Anwendung

• Nuclear magnetic resonance analysis of a chemically cross-linked ferrous-methylthymol blue-polyvinyl alcohol radiochromic gel dosimeter.: Researchers applied NMR to analyze a ferrous-methylthymol blue-polyvinyl alcohol gel dosimeter, showing its potential for accurate radiation dose measurements in medical and industrial applications (Eyadeh et al., 2019).



• Discriminate sensing of pyrophosphate using a new tripodal tetramine-based dinuclear Zn(II) complex under an indicator displacement assay approach.: This work presented a novel sensing method for pyrophosphate detection using a Zn(II) complex and methylthymol blue in an indicator displacement assay, highlighting its selectivity and efficiency (Watchasit et al., 2014).



• Direct colorimetric detection of copper(II) ions in sampling using diffusive gradients in thin-films.: The study introduced a colorimetric technique utilizing methylthymol blue for direct detection of copper(II) ions via diffusive gradients in thin-films, offering a simple and effective analytical tool (McGifford et al., 2010).



• Experimental correlation between the pKa value of sulfonphthaleins with the nature of the substituents groups.: This research explored the relationship between the pKa values of sulfonphthaleins, including methylthymol blue, and their substituent groups, providing insights for better understanding and predicting their behavior in various chemical environments (Balderas-Hernández et al., 2008).

Hinweis zur Analyse

Gehalt (alkalimetrisch): 95,0 - 97,0 %
Identität: entspricht
Farbe: ≤ 10 Hazen
Aussehen: entspricht
Dichte (d 20/20): 1,834 - 1,837
Chlorid (Cl): ≤ 0,1 ppm
Nitrat (NO₃): ≤ 0,2 ppm
Phosphat (PO₄): ≤ 0,5 ppm
Schwermetalle (als Pb): ≤ 1 ppm
Ag (Silber): ≤ 0,02 ppm
Al (Aluminium): ≤ 0,05 ppm
As (Arsen): ≤ 0,01 ppm
Ba (Barium): ≤ 0,05 ppm
Be (Beryllium): ≤ 0,01 ppm
Bi (Bismut): ≤ 0,1
Ca (Calcium): ≤ 0,2 ppm
Cd (Cadmium): ≤ 0,02 ppm
(Cobalt): ≤ 0,01 ppm
Cr (Chrom): ≤ 0,05 ppm
Cu (Kupfer): ≤ 0,01 ppm
Fe (Eisen): ≤ 0,1
Ge (Germanium): ≤ 0,05 ppm
Hg (Quecksilber): ≤ 0,005 ppm
K (Kalium): ≤ 0,1
Li (Lithium): ≤ 0,01 ppm
Mg (Magnesium): ≤ 0,05 ppm
Mn (Mangan): ≤ 0,01 ppm
Mo (Molybdän): ≤ 0,05 ppm
NH₄ (Ammonium): ≤ 2 ppm
Na (Natrium): ≤ 0,5 ppm
Ni (Nickel): ≤ 0,02 ppm
Pb (Blei): ≤ 0,02 ppm
Sr (Strontium): ≤ 0,02 ppm
Ti (Titan): ≤ 0,1
Tl (Thallium): ≤ 0,05 ppm
V (Vanadium): ≤ 0,01 ppm
Zn (Zink): ≤ 0,05 ppm
Zr (Zirkonium): ≤ 0,1
Kaliumpermanganat reduzierende Substanzen (als SO₂): ≤ 2 ppm
Glührückstand: ≤ 5 ppm
Verfallsdatum: siehe Produktetikett

Rechtliche Hinweise

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

Sicherheitshinweise

• Piktogramme: GHS05
• Signalwort: Danger
• H-Sätze: H290 - H314
• P-Sätze: P234 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 - P363
• Gefahreneinstufungen: Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A
• Lagerklassenschlüssel: 8B - Non-combustible, corrosive hazardous materials
• WGK: WGK 1
• Flammpunkt (°F): Not applicable
• Flammpunkt (°C): Not applicable