Identifikatoren & physikalische Daten
| CAS No. | 14265-45-3 |
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| Summenformel | H2O3S |
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| Durchschnittliche Molmasse | 82,08 g/mol |
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| Monoisotopische Masse | 81,97246492 g/mol |
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| SMILES | O=S(O)O |
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| InChIKey | LSNNMFCWUKXFEE-UHFFFAOYSA-N |
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| PubChem CID | 1100 |
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| ChEMBL | CHEMBL1161699 |
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| ChEBI | CHEBI:48854 |
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| EC No. | 231-973-1 |
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| DTXSID | DTXSID7042435 |
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Chemische & physikalische Eigenschaften
| XLogP | -0,5 |
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| Polarare Oberfläche (TPSA) | 76,7 |
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| H-Brücken-Donoren | 2 |
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| H-Brücken-Akzeptoren | 4 |
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| Frei drehbare Bindungen | 0 |
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| Schwere Atome | 4 |
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| Formalladung | 0 |
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| Komplexität | 26,3 |
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| Stoffklassen | Toxic Gases & Vapors -> Acids, InorganicCorrosives |
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| Lebensmittelzusatzstoffe | Use unspecified -> FDA Substance added to food |
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| Dichte | 1.03 @25 °C |
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| Löslichkeit | 558.5 mg/mL |
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| Physical Description | Sulfurous acid appears as a colorless liquid with a pungent burning sulfur odor. Corrosive to metals and tissue.Clear colorless liquid with a suffocating odor of sulfur dioxide[Merck Index]Solid |
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Sicherheit & Vorschriften
| GHS-Einstufung | This chemical does not meet GHS hazard criteria for 0.8% (1 of 130) of reports.DangerH314 (95.4%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]P260, P261, P264, P264+P265, P271, P280, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P316, P317, P321, P363, P405, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 130 reports by companies from 8 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies. |
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| Regulatorische Informationen | Chemical: Sulfurous acidSulfurous acid is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Sulfurous acid are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)The New Jersey Worker and Community Right to Know Act requires public and private employers to provide information about hazardous substances at their workplaces. (N.J.S.A. 34:5A-1 et. seq.) |
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| DOT-Kennzeichnung | Corrosive |
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| Brandgefahren | Excerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]:· Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes. |
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| Gesundheitsgefahren | Excerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]:· TOXIC and/or CORROSIVEinhalation, ingestion or skin contact with material may cause severe injury or death. |
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| Gefahrenübersicht | Aqueous solution of approximately 6% sulfur dioxideGradually oxidized by air forming sulfuric acidCorrosive[Merck Index] A strong oxidizing agentCauses burns[CAMEO] Human ingestion of 0.5 mg/kg causes diarrhea, other gastrointestinal changes, and nausea or vomiting[RTECS] Causes burnsHarmful by inhalation[Alfa Aesar MSDS] See Sulfur dioxide and Sulfuric acid. |
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