Sulfuric acid

grade

ACS reagent
puriss. p.a.

Quality Level

200

Agency

USP/NF
reag. ISO
reag. Ph. Eur.

vapor density

<0.3 (25 °C, vs air)

vapor pressure

1 mmHg ( 146 °C)

description

Nominally 95-98% H₂SO₄

Assay

95.0-97.0%

form

liquid

impurities

≤1 ppm heavy metals (as Pb)
≤2 ppm KMnO₄ red. matter (as O)
≤2 ppm ammonium (NH₄)

ign. residue

≤5 ppm

pH

1.2 (5 g/L)

bp

~290 °C (lit.)

density

1.840 g/mL at 25 °C (lit.)

anion traces

chloride (Cl^-): ≤0.1 ppm
nitrate (NO₃^-): ≤0.2 ppm
phosphate (PO₄^3-): ≤0.5 mg/kg

cation traces

Ag: ≤0.02 mg/kg
Al: ≤0.05 mg/kg
As: ≤0.01 ppm
Ba: ≤0.05 mg/kg
Be: ≤0.01 mg/kg
Bi: ≤0.05 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 ppm
Ge: ≤0.05 mg/kg
Hg: ≤5 ppb
K: ≤0.1 mg/kg
Li: ≤0.01 mg/kg
Mg: ≤0.05 mg/kg
Mn: ≤0.01 mg/kg
Mo: ≤0.02 mg/kg
Na: ≤0.5 mg/kg
Ni: ≤0.02 mg/kg
Pb: ≤0.02 mg/kg
Sr: ≤0.02 mg/kg
Ti: ≤0.1 mg/kg
Tl: ≤0.05 mg/kg
V: ≤0.01 mg/kg
Zn: ≤0.05 mg/kg
Zr: ≤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