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Key Documents

1.00732

Supelco

Sulfuric acid

95-97%, for analysis (max. 0.005 ppm Hg) EMSURE® ACS,ISO,Reag. Ph Eur

Sinónimos:

Sulfuric acid

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About This Item

Fórmula lineal:
H2SO4
Número de CAS:
Peso molecular:
98.08
Beilstein/REAXYS Number:
2037554
MDL number:
UNSPSC Code:
12352301
EC Index Number:
231-639-5
NACRES:
NA.21

product name

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

grade

ACS reagent

Quality Level

agency

reag. ISO
reag. Ph. Eur.

vapor density

<0.3 (25 °C, vs air)

vapor pressure

0.0001 hPa ( 20 °C)
1 mmHg ( 146 °C)

product line

EMSURE®

assay

95-97% (alkalimetric)

form

liquid

ign. residue

≤5 ppm

color

APHA: ≤10

pH

0.3 (25 °C, 49 g/L in H2O)

bp

~290 °C (lit.)

mp

-20 °C

density

1.840 g/mL at 25 °C (lit.)

anion traces

chloride (Cl-): ≤0.1 ppm
nitrate (NO3-): ≤0.2 ppm
phosphate (PO43-): ≤0.5 ppm

cation traces

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

storage temp.

no temp limit

InChI

1S/H2O4S/c1-5(2,3)4/h(H2,1,2,3,4)

InChI key

QAOWNCQODCNURD-UHFFFAOYSA-N

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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).



Analysis Note

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

Legal Information

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

pictograms

Corrosion

signalword

Danger

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


Certificados de análisis (COA)

Busque Certificados de análisis (COA) introduciendo el número de lote del producto. Los números de lote se encuentran en la etiqueta del producto después de las palabras «Lot» o «Batch»

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