30736
Sulfuric acid, fuming
puriss. p.a., 20% SO3
Synonym(s):
Oleum
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About This Item
Linear Formula:
H2SO4 · (SO3)x
CAS Number:
Molecular Weight:
98.08
PubChem Substance ID:
UNSPSC Code:
12352106
Beilstein/REAXYS Number:
2037554
MDL number:
Assay:
≤87% total SO3 basis
Concentration:
20-30% (free SO3)
vapor density
3 (vs air)
vapor pressure
2 mmHg ( 25 °C)
grade
puriss. p.a.
assay
≤87% total SO3 basis
concentration
20-30% (free SO3)
impurities
≤0.0002% ammonium (NH4), ≤0.0005% heavy metals (as Pb)
ign. residue
≤0.01%
density
1.90 g/mL at 20 °C, 1.925 g/mL at 25 °C (lit.)
anion traces
chloride (Cl-): ≤5 mg/kg
cation traces
As: ≤0.03 mg/kg, Fe: ≤50 mg/kg
SMILES string
O=S(=O)=O.OS(O)(=O)=O
InChI
1S/H2O4S.O3S/c1-5(2,3)4;1-4(2)3/h(H2,1,2,3,4);
InChI key
HIFJUMGIHIZEPX-UHFFFAOYSA-N
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signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 2 Inhalation - Skin Corr. 1A - STOT SE 3
target_organs
Respiratory system
supp_hazards
Storage Class
6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
Regulatory Information
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