360481

1,4-Dioxan

ACS reagent, ≥99.0%, contains ≤25 ppm BHT as stabilizer

• Synonym(e): Diethylenoxid, Dioxan
• Empirische Formel (Hill-System): C₄H₈O₂
• CAS-Nummer: 123-91-1
• Molekulargewicht: 88.11
• Beilstein: 102551
• EG-Nummer: 204-661-8
• MDL-Nummer: MFCD00006571
• UNSPSC-Code: 12352005
• PubChem Substanz-ID: 329755260
• NACRES: NA.21

Eigenschaften

• Qualität: ACS reagent
• Qualitätsniveau: 200
• Dampfdichte: 3 (vs air)
• Dampfdruck: 27 mmHg ( 20 °C); 40 mmHg ( 25 °C)
• Assay: ≥99.0%
• Form: liquid
• Selbstzündungstemp.: 356 °F
• Enthält: ≤25 ppm BHT as stabilizer
• Expl.-Gr.: 22 %
• Verunreinigungen: ≤0.0016 meq/g Titr. acid; ≤0.005% Peroxide (as H₂O₂); ≤0.01% Carbonyl (as HCHO); ≤0.05% water
• Abdampfrückstand: ≤0.005%
• Farbe: APHA: ≤20
• Brechungsindex: n20/D 1.422 (lit.)
• pH-Wert: 6.0-8 (20 °C, 500 g/L)
• bp: 100-102 °C (lit.)
• mp (Schmelzpunkt): 10-12 °C (lit.)
• Übergangstemp.: freezing point ≥11.0
• Dichte: 1.034 g/mL at 25 °C (lit.)
• SMILES String: C1COCCO1
• InChI: 1S/C4H8O2/c1-2-6-4-3-5-1/h1-4H2
• InChIKey: RYHBNJHYFVUHQT-UHFFFAOYSA-N

Beschreibung

Allgemeine Beschreibung

1,4-Dioxane is a heterocyclic organic compound that is commonly used as a solvent in several chemical reactions. It is also used as a stabilizer in chlorinated solvents.

Anwendung

1,4-Dioxane can be used as:      

• A solvent in the N-methylation of amines by reductive functionalization of CO₂ in the presence of NaBH₄ as the reducing reagent.      
• An additive to synthesize 3-hydroxylisoindolin-1-ones via hydroxylhydrative aza-cyclization of 2-alkynylbenzamide.

A mixture of 1,4-dioxane/ethanol/formic acid solvent system can be used in the depolymerization of lignin to synthesize value-added phenolic monomers.

Sicherheitshinweise

• Piktogramme: GHS02,GHS08,GHS07
• Signalwort: Danger
• H-Sätze: H225,H319,H335,H350
• P-Sätze: P202 - P210 - P233 - P240 - P305 + P351 + P338 - P308 + P313
• Gefahreneinstufungen: Carc. 1B - Eye Irrit. 2 - Flam. Liq. 2 - STOT SE 3
• Zielorgane: Respiratory system
• Zusätzliche Gefahrenhinweise: EUH019,EUH066
• Lagerklassenschlüssel: 3 - Flammable liquids
• WGK: WGK 3
• Flammpunkt (°F): 51.8 °F - closed cup
• Flammpunkt (°C): 11 °C - closed cup