1.00732

Ácido sulfúrico

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

• Sinónimos: Sulfuric acid
• Fórmula lineal: H₂SO₄
• Número de CAS: 7664-93-9
• Peso molecular: 98.08
• Beilstein: 2037554
• Número MDL: MFCD00064589
• Código UNSPSC: 12352301
• Número índice de la CE: 231-639-5

Propiedades

• grado: ACS reagent
• Nivel de calidad: 300
• Agency: reag. ISO; reag. Ph. Eur.
• densidad de vapor: <0.3 (25 °C, vs air)
• presión de vapor: 0.0001 hPa ( 20 °C); 1 mmHg ( 146 °C)
• Línea del producto: EMSURE^®
• Análisis: 95-97% (alkalimetric)
• formulario: liquid
• residuo de ign.: ≤5 ppm
• color: APHA: ≤10
• pH: 0.3 (25 °C, 49 g/L in H₂O)
• bp: ~290 °C (lit.)
• mp: -20 °C
• densidad: 1.840 g/mL at 25 °C (lit.)
• trazas de anión: chloride (Cl^-): ≤0.1 ppm; nitrate (NO₃^-): ≤0.2 ppm; phosphate (PO₄^3-): ≤0.5 ppm
• trazas de catión: 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
• cadena SMILES: OS(O)(=O)=O
• temp. de almacenamiento: no temp limit
• InChI: 1S/H2O4S/c1-5(2,3)4/h(H2,1,2,3,4)
• Clave InChI: QAOWNCQODCNURD-UHFFFAOYSA-N

Descripción

Aplicación

• 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).

Nota de análisis

Assay (alkalimetric): 95.0 - 97.0 %
Identity: passes test
Color: ≤ 10 Hazen
Appearance: passes test
Density (d 20/20): 1.834 - 1.837
Chloride (Cl): ≤ 0.1 ppm
Nitrate (NO₃): ≤ 0.2 ppm
Phosphate (PO₄): ≤ 0.5 ppm
Heavy metals (as Pb): ≤ 1 ppm
Ag (Silver): ≤ 0.02 ppm
Al (Aluminium): ≤ 0.05 ppm
As (Arsenic): ≤ 0.01 ppm
Ba (Barium): ≤ 0.05 ppm
Be (Beryllium): ≤ 0.01 ppm
Bi (Bismuth): ≤ 0.1
Ca (Calcium): ≤ 0.2 ppm
Cd (Cadmium): ≤ 0.02 ppm
Co (Cobalt): ≤ 0.01 ppm
Cr (Chromium): ≤ 0.05 ppm
Cu (Copper): ≤ 0.01 ppm
Fe (Iron): ≤ 0.1
Ge (Germanium): ≤ 0.05 ppm
Hg (Mercury): ≤ 0.005 ppm
K (Potassium): ≤ 0.1
Li (Lithium): ≤ 0.01 ppm
Mg (Magnesium): ≤ 0.05 ppm
Mn (Manganese): ≤ 0.01 ppm
Mo (Molybdenum): ≤ 0.05 ppm
NH₄ (Ammonium): ≤ 2 ppm
Na (Sodium): ≤ 0.5 ppm
Ni (Nickel): ≤ 0.02 ppm
Pb (Lead): ≤ 0.02 ppm
Sr (Strontium): ≤ 0.02 ppm
Ti (Titanium): ≤ 0.1
Tl (Thallium): ≤ 0.05 ppm
V (Vanadium): ≤ 0.01 ppm
Zn (Zinc): ≤ 0.05 ppm
Zr (Zirconium): ≤ 0.1
Substances reducing potassium permanganate (as SO₂): ≤ 2 ppm
Residue on ignition: ≤ 5 ppm
Date of expiry: see product label

Información legal

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

Información de seguridad

• Pictogramas: GHS05
• Palabra de señalización: Danger
• Frases de peligro: H290 - H314
• Consejos de prudencia: P234 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 - P363
• Clasificaciones de peligro: Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A
• Código de clase de almacenamiento: 8B - Non-combustible, corrosive hazardous materials
• Clase de riesgo para el agua (WGK): WGK 1
• Punto de inflamabilidad (°F): Not applicable
• Punto de inflamabilidad (°C): Not applicable