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84736

Sigma-Aldrich

Sulfuric acid solution

puriss. p.a., ≥25% (T)

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About This Item

Linear Formula:
H2SO4
CAS Number:
7664-93-9
Molecular Weight:
98.08
Beilstein:
2037554
MDL number:
MFCD00064589
UNSPSC Code:
12352106
PubChem Substance ID:
329769318
NACRES:
NA.21

grade

puriss. p.a.

Quality Level

200

form

liquid

concentration

≥25% (T)

impurities

≤0.0008% KMnO4-reducing matter (as O)

ign. residue

≤0.0005%

density

1.80-1.84 g/cm3

anion traces

chloride (Cl-): ≤0.5 mg/kg
nitrate (NO3-): ≤0.2 mg/kg

cation traces

Ag: ≤0.02 mg/kg
Al: ≤0.05 mg/kg
As: ≤0.01 mg/kg
Ba: ≤0.05 mg/kg
Bi: ≤0.1 mg/kg
Ca: ≤0.2 mg/kg
Cd: ≤0.02 mg/kg
Co: ≤0.01 mg/kg
Cr: ≤0.05 mg/kg
Cu: ≤0.01 mg/kg
Fe: ≤0.1 mg/kg
K: ≤0.1 mg/kg
Li: ≤0.01 mg/kg
Mg: ≤0.05 mg/kg
Mn: ≤0.01 mg/kg
Mo: ≤0.05 mg/kg
NH4+: ≤2 mg/kg
Na: ≤0.5 mg/kg
Ni: ≤0.02 mg/kg
Pb: ≤0.02 mg/kg
Sr: ≤0.01 mg/kg
Tl: ≤0.05 mg/kg
Zn: ≤0.1 mg/kg

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

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General description

Sulfuric acid is a strong mineral acid. It participates as a medium in the anodic oxidation of aniline at a platinum electrode. Anodic oxidation has been reported to proceed via a free radical mechanism and octamer emeraldimine has been obtained as a major product.

Application

Sulfuric acid solution has been used as a solvent for the preparation of 1M xylenol orange and 2.5mM ammonium ferrous sulfate solution in a study.

Pictograms

Corrosion
GHS05

Signal Word

Danger

Hazard Statements

H290,H314

Hazard Classifications

Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A

Storage Class Code

8A - Combustible corrosive hazardous materials

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Investigation of the kinetics and mechanism of the anodic oxidation of aniline in aqueous sulfuric acid solution at a platinum electrode.
Mohilner DM, et al.
Journal of the American Chemical Society, 84(19), 3618-3622 (1962)
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