Sulfuric acid

Quality Level

100

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

grade

ACS reagent, puriss. p.a.

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

color

APHA: ≤10

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-): ≤0.00005%

SMILES string

OS(O)(=O)=O

cation traces

Ag: ≤0.000002%, Al: ≤0.000005%, As: ≤0.01 ppm, Ba: ≤0.000005%, Be: ≤0.000001%, Bi: ≤0.000005%, Ca: ≤0.00002%, Cd: ≤0.000002%, Co: ≤0.000001%, Cr: ≤0.000005%, Cu: ≤0.000001%, Fe: ≤0.1 ppm, Ge: ≤0.000005%, Hg: ≤0.005 ppm, K: ≤0.00001%, Li: ≤0.000001%, Mg: ≤0.000005%, Mn: ≤0.000001%, Mo: ≤0.000002%, Na: ≤0.00005%, Ni: ≤0.000002%, Pb: ≤0.000002%, Sr: ≤0.000002%, Ti: ≤0.00001%, Tl: ≤0.000005%, V: ≤0.000001%, Zn: ≤0.000005%, Zr: ≤0.1 mg/kg

InChI

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

InChI key

QAOWNCQODCNURD-UHFFFAOYSA-N