1.00732

Acide sulfurique

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

• Synonyme(s) : Sulfuric acid
• Formule linéaire : H₂SO₄
• Numéro CAS: 7664-93-9
• Poids moléculaire : 98.08
• Numéro Beilstein : 2037554
• Numéro MDL: MFCD00064589
• Code UNSPSC : 12352301
• Numéro de classement CE : 231-639-5

Propriétés

• Qualité: ACS reagent
• Niveau de qualité: 300
• Agence: reag. ISO; reag. Ph. Eur.
• Densité de vapeur: <0.3 (25 °C, vs air)
• Pression de vapeur: 0.0001 hPa ( 20 °C); 1 mmHg ( 146 °C)
• Gamme de produits: EMSURE^®
• Pureté: 95-97% (alkalimetric)
• Forme: liquid
• Résidus de calcination: ≤5 ppm
• Couleur: APHA: ≤10
• pH: 0.3 (25 °C, 49 g/L in H₂O)
• Point d'ébullition: ~290 °C (lit.)
• Pf: -20 °C
• Densité: 1.840 g/mL at 25 °C (lit.)
• Traces d'anions: chloride (Cl^-): ≤0.1 ppm; nitrate (NO₃^-): ≤0.2 ppm; phosphate (PO₄^3-): ≤0.5 ppm
• Traces de cations: 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
• Chaîne SMILES: OS(O)(=O)=O
• Température de stockage: no temp limit
• InChI: 1S/H2O4S/c1-5(2,3)4/h(H2,1,2,3,4)
• Clé InChI: QAOWNCQODCNURD-UHFFFAOYSA-N

Description

Application

• 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).

Remarque sur l'analyse

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

Informations légales

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

Informations sur la sécurité

• Pictogrammes: GHS05
• Mention d'avertissement: Danger
• Mentions de danger: H290 - H314
• Conseils de prudence: P234 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 - P363
• Classification des risques: Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A
• Code de la classe de stockage: 8B - Non-combustible, corrosive hazardous materials
• Classe de danger pour l'eau (WGK): WGK 1
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable