1,4-Dioxane
SIGALD/33147 - puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., ≥99.5% (GC)
Synonym: Diethylene oxide; Dioxane
CAS Number: 123-91-1
Empirical Formula (Hill Notation): C4H8O2
Molecular Weight: 88.11
EC Number: 204-661-8
MDL Number: MFCD00006571
Linear Formula: C4H8O2
Product Type: Chemical
| agency | reag. ISO |
| reag. Ph. Eur. | |
| USP/NF | |
| assay | ≥99.5% (GC) |
| autoignition temp. | 356 °F |
| bp | 100-102 °C (lit.) |
| cation traces | Al: ≤0.5 mg/kg |
| B: ≤0.02 mg/kg | |
| Ba: ≤0.1 mg/kg | |
| Ca: ≤0.5 mg/kg | |
| Cd: ≤0.05 mg/kg | |
| Co: ≤0.02 mg/kg | |
| Cr: ≤0.02 mg/kg | |
| Cu: ≤0.02 mg/kg | |
| Fe: ≤0.1 mg/kg | |
| Mg: ≤0.1 mg/kg | |
| Mn: ≤0.02 mg/kg | |
| Ni: ≤0.02 mg/kg | |
| Pb: ≤0.1 mg/kg | |
| Sn: ≤0.1 mg/kg | |
| Zn: ≤0.1 mg/kg | |
| contains | ~25 mg/L 2,6-di-tert.-butyl-4-methylphenol as stabilizer |
| density | 1.034 g/mL at 25 °C (lit.) |
| expl. lim. | 22 % |
| form | liquid |
| grade | ACS reagent |
| puriss. p.a. | |
| impurities | ≤0.001% free acid (as CH3COOH) |
| ≤0.001% non-volatile matter | |
| ≤0.005% acetaldehyde | |
| ≤0.005% peroxides (as H2O2) | |
| ≤0.01% carbonyl compounds (as HCHO) | |
| ≤0.05% water (Karl Fischer) | |
| InChI | 1S/C4H8O2/c1-2-6-4-3-5-1/ |
| InChI key | RYHBNJHYFVUHQT-UHFFFAOYSA |
| mp | 10-12 °C (lit.) |
| pH | 6.0-8 (20 °C, 500 g/L) |
| Quality Level | 200 ![]() |
| refractive index | n |
| n |
|
| SMILES string | C1COCCO1 |
| technique(s) | GC/GC: suitable |
| transition temp | solidification point ≤11 °C |
| vapor density | 3 (vs air) |
| vapor pressure | 27 mmHg ( 20 °C) |
| 40 mmHg ( 25 °C) |
| Application: | 1,4-Dioxane has been employed as a solvent in the synthesis of N-(4-(prop-2-ynyloxy)pheny |
| General description: | 1,4-Dioxane is widely used as a solvent for various organic compounds in industry. It is a non-biodegradable contaminant found in industrial effluents. Oxidative degradation of 1,4-dioxane by using oxygen and ozone has been useful in converting it into biodegradable products, which can be easily removed by conventional methods. |
| Other Notes: | The article number 33147-6X1L will be discontinued. Please order the single bottle 33147-1L which is physically identical with the same exact specifications. |
| Symbol | ![]() ![]() GHS02,GHS07,GHS08 |
| Signal word | Danger |
| Hazard statements | H225 - H319 - H335 - H351 |
| Precautionary statements | P202 - P210 - P233 - P240 - P305 + P351 + P338 - P308 + P313 |
| Hazard Codes | F,Xn |
| Risk Statements | 11-19-36/37-40-66 |
| Safety Statements | 9-16-36/37-46 |
| RIDADR | UN1165 - class 3 - PG 2 - Dioxane |
| WGK Germany | WGK 2 |
| Flash Point(F) | 51.8 °F - closed cup |
| Flash Point(C) | 11 °C - closed cup |
| Supplemental Hazard Statements | EUH019 - EUH066 |
| Purity | ≥99.5% (GC) |
| bp | 100-102 °C (lit.) |
| mp | 10-12 °C (lit.) |
| Density | 1.034 g/mL at 25 °C (lit.) |
| Refractive Index | n |
| UNSPSC | 12352005 |




