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Chlorsure
Chloride Acid · C01485 · NA-9191 · chloric · NA 2626 · Hypure C · chloricacid · Chloric acid solution
Identifikatoren & physikalische Daten
| CAS No. | 7790-93-4 |
|---|---|
| Summenformel | ClHO3 |
| Durchschnittliche Molmasse | 84,46 g/mol |
| Monoisotopische Masse | 83,96142157 g/mol |
| SMILES | [O-][Cl+2]([O-])O |
| InChIKey | LSUVGSGHYCLVPU-UHFFFAOYSA-N |
| PubChem CID | 19654 |
| ChEMBL | CHEMBL1161633 |
| ChEBI | CHEBI:17322 |
| EC No. | 232-233-0 |
| DTXSID | DTXSID1047449 |
| Lokaler Name | Chlorsure |
Chemische & physikalische Eigenschaften
| XLogP | 2,1 |
|---|---|
| Polarare Oberfläche (TPSA) | 54,4 |
| H-Brücken-Donoren | 1 |
| H-Brücken-Akzeptoren | 3 |
| Frei drehbare Bindungen | 0 |
| Schwere Atome | 4 |
| Formalladung | 0 |
| Komplexität | 46,2 |
| Stoffklassen | Toxic Gases & Vapors -> Acids, InorganicReactive agents - 4th degree |
| Physical Description | Chloric acid is a colorless liquid. It will accelerate the burning of combustible materials and can ignite most on contact. It is corrosive to metals and tissue. It is used as a reagent in chemical analysis and to make other chemicals.Found only in aqueous solution[Merck Index] Clear colorless liquid[MSDSonline] |
| Schmelzpunkt | <-20℃ [CRC10] |
| Siedepunkt | >100 °C |
| Dichte | 1.2 g/mL at 25 °C |
| Löslichkeit | very soluble in H2Overy soluble H2O [CRC10] |
| Farbe | exists only in aqueous solution |
| Merck | 13,2109 |
| CAS Datenbank | 7790-93-4 |
| EPA chemische Informationen | Chloric acid (7790-93-4) |
Sicherheit & Vorschriften
| GHS-Einstufung | DangerH271 (100%): May cause fire or explosionstrong Oxidizer [Danger Oxidizing liquidsOxidizing solids]P210, P220, P260, P264, P280, P283, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P306+P360, P316, P321, P363, P370+P378, P371+P380+P375, P405, P420, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 39 reports by companies from 1 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.H271: May cause fire or explosion |
|---|---|
| Regulatorische Informationen | Chloric acid: Does not have an individual approval but may be used under an appropriate group standardThe 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.) |
| DOT-Kennzeichnung | Oxidizer |
| Brandgefahren | Excerpt from ERG Guide 140 [Oxidizers]:CAUTION: Ammonium nitrate products may explode if involved in fire or contaminated with hydrocarbons (fuels), organic matter, other contaminants or when hot molten and contained. Treat as an explosive (GUIDE 112). |
| Gesundheitsgefahren | Excerpt from ERG Guide 140 [Oxidizers]:· Inhalation, ingestion or contact (skin, eyes) with vapors or substance may cause severe injury, burns or death. |
| Gefahrenübersicht | A strong skin and mucous membrane irritant[Merck Index] Corrosive to tissue[CAMEO] An eye irritant[eChemPortal: ERMA] A corrosive substance that can cause injury to the skin, eyes, and respiratory tractInhalation may cause chemical pneumonitis and pulmonary edema[MSDSonline] |
| DOT-Nummer und Handbuch | 2626 140 |
| Reaktive Gruppe | Acids, Strong Oxidizing |
| Reactivity Alerts | Strong Oxidizing Agent |
| Reactivity Profile | Self-reactive. Concentrations of CHLORIC ACID above 40% decompose [Mellor 2 Supp. 1:576 1956]. Antimony sulfide and concentrated solutions of chloric acid react with incandescence [Mellor Supp. II Part I:584 1956]. Arsenic sulfide and concentrated solutions of chloric acid react with incandescence. Reacts with vigor even explodes with other metal sulfides, i.e. copper sulfide [Mellor Supp. II Part I:584 1956]. In contact with oxidizable materials, including ammonia, reactions can be extremely violent. Filter paper ignites after soaking in chloric acid, [Mellor, 1946, Vol. 2, 310]. Explosions have been recorded by mixtures of chloric acid solution with metals such as: antimony, bismuth, and iron. This is due to the formation of explosive compounds including hydrogen. |
| Air and Water Reactions | Water soluble. |
| Hazard Classes and Categories | Ox. Liq. 1 (100%)Oxidizing liquids - Category 1-2Reactive agents - 4th degree |
| Brandbekämpfung | Excerpt from ERG Guide 140 [Oxidizers]: |
| Freisetungsmaßnahmen | · CALL 911. Then call emergency response telephone number on shipping paper. If shipping paper not available or no answer, refer to appropriate telephone number listed on the inside back cover.· Keep combustibles (wood, paper, oil, etc.) away from spilled material. |
| Erste Hilfe | Excerpt from ERG Guide 140 [Oxidizers]:General First Aid: |
| Expositionsschutz und Persönliche Schutzausrüstung | · Wear positive pressure self-contained breathing apparatus (SCBA). |
| Freisetung ohne Brand | Excerpt from ERG Guide 140 [Oxidizers]: |
| Isolation and Evacuation | Excerpt from ERG Guide 140 [Oxidizers]:Immediate precautionary measure |
| Personal Protective Equipment (PPE) | Excerpt from ERG Guide 140 [Oxidizers]: |
| Emergency Response Planning Guidelines | Small Fire |
| Unerwünschte Wirkungen | Dermatotoxin - Skin burns. |
| TSCA-Inventar-Status | TSCA listed |
| UN-Transportnummer | UN 2626 |
| R-Sätze (R) | 8-34 |
| Gefahrensymbole | O,C |
| Sicherheitshinweise (S) | 17-26-36/37/39-45 |
| Gefahrenklasse | 5.1 |
| Verpackungsgruppe | II |
Anwendungen & Verwendung
Beschreibung
Chloric acid, HClO3, is an oxoacid of chloride, and the formal precursor of chlorate salts. It is a strong acid (pKa＝-1) and a strong oxidizing agent. It is stable in cold aqueous solution up to a concentration of approximately 30%, and solution of up to 40% can be prepared by careful evaporation under reduced pressure. Above these concentrations, and on warming, chloric acid solutions decompose to give a variety of products, for example: 8HClO3→4HClO4＋2H2O＋2Cl2＋3O2 Note that it disproportionates into perchloric acid in which the chlorine atom has a＋7 oxidation state and also the zero oxidation state of chlorine gas (an oxidation–reduction reaction). Thus, under the proper conditions, it can also be used to make perchloric acid. 3HClO3→HClO4＋H2O＋2ClO2
Verwenden
Oxidizing agent; with H2SO3 as catalyst in acrylonitrile polymerization.