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Propionsureanhydrid
propionic · Propionic acid anhydride · PROPANOIC ANHYDRIDE · propionyloxide · Propionyl oxide · C2H5C(O)OC(O)C2H5 · Propinoicanhydride · Propanic Anhydride
Identifikatoren & physikalische Daten
| CAS No. | 123-62-6 |
|---|---|
| Summenformel | C6H10O3 |
| Durchschnittliche Molmasse | 130,14 g/mol |
| Monoisotopische Masse | 130,06299418 g/mol |
| SMILES | CCC(=O)OC(=O)CC |
| InChIKey | WYVAMUWZEOHJOQ-UHFFFAOYSA-N |
| PubChem CID | 31263 |
| ChEMBL | CHEMBL3186472 |
| EC No. | 204-638-2 |
| DTXSID | DTXSID1027007 |
| Lokaler Name | Propionsureanhydrid |
Chemische & physikalische Eigenschaften
| XLogP | 0,8 |
|---|---|
| Polarare Oberfläche (TPSA) | 43,4 |
| H-Brücken-Donoren | 0 |
| H-Brücken-Akzeptoren | 3 |
| Frei drehbare Bindungen | 4 |
| Schwere Atome | 9 |
| Formalladung | 0 |
| Komplexität | 103 |
| Stoffklassen | Other Classes -> Acid Anhydrides, OtherCorrosives |
| SpringerMaterials Properties | Acentric factor |
| Geruch | Very rancid odorPungent odor |
| Dichte | 1.01 at 68 °F (USCG, 1999) - Denser than waterwill sink1.011 g/cu cm at 20 °CRelative density (water = 1): 1.011.012 @25 °C1.015 g/mL at 25 °C(lit.) |
| Viscosity | 1.144 cP at 20 °C0.978 cP at 30 °C0853 cP at 40 °C0.7511 cP at 50 °C |
| Color/Form | Colorless liquid |
| Löslichkeit | Decomposed by watersoluble in methanol, ethanol, ether and chloroformSoluble in alkaliesMiscible with etherslightly soluble in carbon tetraachlorideSolubility in water: reactionH2O: decomposes (when in contact with water)hydrolyses |
| Flammpunkt | 145 °F (USCG, 1999)165 °F (74 °C) (Open Cup)145 °F (63 °C) (Closed Cup)63 °C c.c. |
| Siedepunkt | 336 °F at 760 mmHg (USCG, 1999)170 °C167 °C167 °C @760 [mm Hg]167 °C(lit.) |
| Decomposition | When heated to decomposition it emits acrid smoke and irritating fumes. |
| Schmelzpunkt | -45 °F (USCG, 1999)-45 °C-42 °C |
| Dampfdichte | 4.49 (Air = 1)Relative vapor density (air = 1): 4.54.5 (vs air) |
| Dampfdruck | 10 mm Hg ( 57.7 °C) |
| Brechungsindex | n20/D 1.404(lit.) |
| Lagerbedingungen | Store below +30°C. |
| Aggregatzustand | clear liquid |
| Farbe | Colorless to Almost colorless |
| Geruch | like acetaldehyde |
| pH | 2.5 (100g/l, H2O, 20℃)(calculated on the free acid) |
| Explosionsgrenze | 1.3-9.5%(V) |
| Merck | 14,7826 |
| BRN | 507066 |
| Dielektrizitätskonstante | 18.0(16℃) |
| Stabilität | Stable. Combustible. Incompatible with strong oxidizing agents, water, moisture, most common metals, active halogen compounds, ammonia, amines. |
| InChI | 1S/C6H10O3/c1-3-5(7)9-6(8)4-2/h3-4H2,1-2H3 |
| InChIKey | WYVAMUWZEOHJOQ-UHFFFAOYSA-N |
| SMILES | CCC(=O)OC(=O)CC |
| LogP (Verteilungskoeffizient) | 0.33 at 20℃ |
| CAS Datenbank | 123-62-6(CAS DataBase Reference) |
| NIST chemische Informationen | Propanoic acid, anhydride(123-62-6) |
| EPA chemische Informationen | Propionic anhydride (123-62-6) |
Sicherheit & Vorschriften
| GHS-Einstufung | DangerH314: Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]P260, P264, P280, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P316, P321, P363, P405, and P501 (click each P-code to see the statement)H314 (100%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]P260, P264, P264+P265, 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) |
|---|---|
| Regulatorische Informationen | Chemical: Propanoic acid, anhydrideList I Chemical: A chemical specified by regulation that, in addition to legitimate uses, is used in manufacturing a controlled substance in violation of the Act and is important to the manufacture of a controlled substance. (21 eCFR 1310.02)Propanoic acid, 1,1'-anhydride is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Propanoic acid, 1,1'-anhydride 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)Status: Active Update: 04-01-2023 https://echa.europa.eu/registration-dossier/-/registered-dossier/5412Propionic anhydride: 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.) |
| Weitere Sicherheitsinformationen | IMAP assessments - Propanoic acid, anhydride: Human health tier I assessment |
| DOT-Kennzeichnung | Corrosive |
| Brandgefahren | Excerpt from ERG Guide 156 [Substances - Toxic and/or Corrosive (Combustible / Water-Sensitive)]:· Combustible material: may burn but does not ignite readily.Combustible. Above 63 °C explosive vapour/air mixtures may be formed. |
| Brandpotenzial | Combustible liquid |
| Gesundheitsgefahren | Inhalation causes irritation of eyes and respiratory tract. Contact with liquid causes burns of eyes and skin. Ingestion causes burns of mouth and stomach. (USCG, 1999) |
Anwendungen & Verwendung
Verwenden
Propionic anhydride is used as a esterifying agent for certain perfume oils, fats, oils, and especially cellulose and as a reagent in organic synthesis. In the production of alkyd resins, dyestuffs and drugs. Has been used as a dehydrating agent in some sulfonations and nitrations.