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| LC5634 Sulfur trioxide pyridine complex for synthesis |
| Order number | Packaging | Quantity | Price € |
| AC32634 | Glass bottle | 100 g | 27.00 |
| Product information | |
| Hill Formula | C5H5NO3S |
| Chemical formula | C5H5N * O3S |
| HS Code | 2942 00 00 |
| EC number | 247-683-3 |
| Molar mass | 159.16 g/mol |
| CAS number | 26412-87-3 |
| Chemical and physical data | |
| Ignition temperature | >350 °C |
| Solubility | (20 °C) (decomposition) |
| Melting point | 155 – 165 °C |
| Molar mass | 159.16 g/mol |
| Bulk density | 600 kg/m3 |
| pH value | (H2O) acidic |
| Safety information according to GHS | |
| Hazard Statement(s) | H302: Harmful if swallowed. H315: Causes skin irritation. H319: Causes serious eye irritation. |
| Precautionary Statement(s) | P260: Do not breathe dust. P302 + P352: IF ON SKIN: Wash with plenty of soap and water. P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. |
| Signal Word | Warning |
| Hazard Pictogram(s) |  |
| Storage class | 8 A Combustible substances, corrosive |
| WGK | WGK 2 water endangering |
| Disposal | 12 Inorganic acids and anhydrides thereof should first be diluted or hydrolyzed by stirring carefully into ice water and then neutralized (protective gloves, fume cupboard!) with sodium hydroxide solution (Cat. No. 105587). Before filling into container D, check the pH with pH universal indicator strips (Cat. No. 109535). Fuming sulfuric acid should be carefully stirred dropwise into 40 % sulfuric acid (Cat. No. 109286). Ensure that plenty of ice is available for cooling! When sufficiently cool, treat the highly concentrated sulfuric acid as described above. Analogous to this procedure, other anhydrides can be converted into their corresponding acids. Acid gases (e.g. hydrogen halide, chlorine, phosgene, sulfur dioxide) can be introduced into dilute sodium hydroxide solution and after neutralization disposed of in container D. |
| Safety information | |
| R Phrase | R 22-36/38 Harmful if swallowed.Irritating to eyes and skin. |
| S Phrase | S 22-26 Do not breathe dust.In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
| Categories of danger | harmful, irritant |
| Hazard Symbol |  Harmful |
| Transport information | |
| Declaration (transport by sea) IMDG-Code | UN 3261 CORROSIVE SOLID, ACIDIC, ORGANIC, N.O.S.(SULFURTRIOXIDE-PYRIDINE COMPLEX), 8, II, Segregation Group: 1 (Acids) |
| Declaration (transport by air) IATA-DGR | UN 3261 CORROSIVE SOLID, ACIDIC, ORGANIC, N.O.S.(SULFURTRIOXIDE-PYRIDINE COMPLEX), 8, II |
| Toxicological data | |
| LD 50 oral | LD50 rat 500 – 2000 mg/kg |
| Specifications | |
| Assay (acidimetric) | ≥ 97 % |
| Melting range – lower value |
≥ 160 °C |
| – upper value | ≤ 170 °C |
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