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Diethoxymethan
Methane, diethoxy- · ETHYLAL · FORMALDEHYDE DIETHYL ACETAL · diethoxy-methan · Ethoxymethoxy-ethane · Ethylal >DIETHYLFORMAL · Diethoxymethane · 3,5-dioxaheptene
Identifikatoren & physikalische Daten
| CAS No. | 462-95-3 |
|---|---|
| Summenformel | C5H12O2 |
| Durchschnittliche Molmasse | 104,15 g/mol |
| Monoisotopische Masse | 104,08372962 g/mol |
| SMILES | CCOCOCC |
| InChIKey | KLKFAASOGCDTDT-UHFFFAOYSA-N |
| PubChem CID | 10024 |
| EC No. | 207-330-6 |
| DTXSID | DTXSID6052112 |
| Lokaler Name | Diethoxymethan |
Chemische & physikalische Eigenschaften
| XLogP | 0,8 |
|---|---|
| Polarare Oberfläche (TPSA) | 18,5 |
| H-Brücken-Donoren | 0 |
| H-Brücken-Akzeptoren | 2 |
| Frei drehbare Bindungen | 4 |
| Schwere Atome | 7 |
| Formalladung | 0 |
| Komplexität | 25,3 |
| Stoffklassen | Flammable agents - 3rd degree |
| SpringerMaterials Properties | Boiling point |
| LogP (Verteilungskoeffizient) | 0.84 |
| Aromastoffe | EU Flavoring substances |
| Physical Description | Diethoxymethane appears as a colorless volatile liquid with an agreeable odor. Less dense than water. Vapors heavier than air. May be narcotic in high concentrations. Used as a solvent and in the manufacture of cosmetics.CBI |
| Schmelzpunkt | -66.5 °C |
| Siedepunkt | 87-88 °C (lit.) |
| Dichte | 0.831 g/mL at 25 °C (lit.) |
| Dampfdichte | 3.6 (vs air) |
| Dampfdruck | 60 mm Hg ( 25 °C) |
| Brechungsindex | n20/D 1.373(lit.) |
| Flammpunkt | 22 °F |
| Lagerbedingungen | Store below +30°C. |
| Löslichkeit | 91g/l4.2 G/100 ML |
| Aggregatzustand | Liquid |
| Farbe | Clear colorless |
| Geruch | Very diffusive, sweet-ethereal odor, somewhat reminiscent of Acetone and Methyl acetate |
| Geruchsart | Sweet, ethereal, slightly fruity taste. Not very powerful |
| Explosionsgrenze | 1.5%(V) |
| BRN | 1697253 |
| Henry-Konstante | 1.5×10-1 mol/(m3Pa) at 25℃, Duchowicz et al. (2020) |
| Dielektrizitätskonstante | 2.5299999999999998 |
| Stabilität | Stable. Highly flammable. Incompatible with strong oxidizing agents, strong acids. |
| Kosmetik-Inhaltsstoffe Funktionen | SOLVENT |
| InChI | 1S/C5H12O2/c1-3-6-5-7-4-2/h3-5H2,1-2H3 |
| InChIKey | KLKFAASOGCDTDT-UHFFFAOYSA-N |
| SMILES | CCOCOCC |
| LogP (Verteilungskoeffizient) | 0.84 |
| CAS Datenbank | 462-95-3(CAS DataBase Reference) |
| NIST chemische Informationen | Diethoxymethane(462-95-3) |
| EPA chemische Informationen | Ethane, 1,1'-[methylenebis(oxy)]bis- (462-95-3) |
Sicherheit & Vorschriften
| GHS-Einstufung | DangerH225 (100%): Highly Flammable liquid and vapor [Danger Flammable liquids]P210, P233, P240, P241, P242, P243, P261, P264, P264+P265, P271, P280, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P370+P378, P403+P233, P403+P235, P405, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 207 reports by companies from 9 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies. |
|---|---|
| Regulatorische Informationen | Chemical: Ethane, 1,1'-[methylenebis(oxy)]bis-Commission Regulation (EC) No 1565/2000 (Repealed by Com. Implementing Reg. (EU) No 872/2012)Ethane, 1,1'-[methylenebis(oxy)]bis- is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Ethane, 1,1'-[methylenebis(oxy)]bis- 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: 02-07-2021 https://echa.europa.eu/registration-dossier/-/registered-dossier/11805Diethoxymethane: 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 | Flammable Liquid |
| Brandgefahren | Excerpt from ERG Guide 127 [Flammable Liquids (Water-Miscible)]:· HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames. |
| Gesundheitsgefahren | Excerpt from ERG Guide 127 [Flammable Liquids (Water-Miscible)]:· Inhalation or contact with material may irritate or burn skin and eyes. |
| DOT-Nummer und Handbuch | 2373 127 |
| Reaktive Gruppe | Ethers |
| Reactivity Alerts | Highly Flammable |
| Reactivity Profile |
Anwendungen & Verwendung
Verwenden
Diethoxymethane (DEM) is offered by Eastman Chemical Company as a cost-effective replacement solvent for monoglyme (1,2- dimethoxyethane) and methylal. The DEM diether is stable under alkaline conditions, but can be cleaved by strong acids. Diethoxymethane can be used as a chemical intermediate in many organic synthesis reactions. Diethoxymethane is useful as a solvent in lithium batteries with nonaqueous electrolytes, as a solvent for polymeric materials, and as a fuel additive. As a chemical intermediate DEM can act as an ethoxymethylating reagent for alcohols and phenols and serve as a source for formaldehyde in organic synthesis.