30736
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30736
Sigma-Aldrich
Sulfuric acid, fuming
puriss. p.a., 20% SO3
| Synonym: | Oleum |
| CAS Number: | 8014-95-7 |
| Linear Formula: | H2SO4 · (SO3)x |
| Molecular Weight: | 98.08 |
| Beilstein Registry Number: | 2037554 |
| MDL number: | MFCD00137792 |
| PubChem Substance ID: | 24858586 |
Properties
| vapor density | 3 (vs air) |
| vapor pressure | 2 mmHg ( 25 °C) |
| grade | puriss. p.a. |
| assay | ≤87% total SO3 basis |
| 20-30% free SO3 basis | |
| total impurities | 0.0002% ammonium (NH4) |
| 0.0005% heavy metals (as Pb) | |
| ign. residue | 0.001% |
| density | 1.90 g/mL at 20 °C |
| 1.925 g/mL at 25 °C(lit.) | |
| anion traces | chloride (Cl-): 5 mg/kg |
| nitrate (NO3-): 1 mg/kg | |
| cation traces | As: 0.03 mg/kg |
| Fe: 10 mg/kg |
Safety
| Personal Protective Equipment | Faceshields, full-face respirator (US), Gloves, Goggles, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
| Hazard Codes | C |
| Risk Statements | 14-35-37 |
| Safety Statements | 26-30-45 |
| RIDADR | UN 1831 8/PG 1 |
| WGK Germany | 1 |
| RTECS | WS5605000 |
References
| Merck | Merck 13,9064 |
| reference | RegBook 1 (3), 3249:I / RegBook 1 (3), 3249:H / RegBook 1 (3), 3249:J / Sax 6, 2489 |
