Diethylene glycol
Diethylene glycol (DEG) is an organic compound with the formula (HOCH2CH2)2O. It is a colorless, practically odorless, and hygroscopic liquid with a sweetish taste. It is a four carbon dimer of ethylene glycol. It is miscible in water, alcohol, ether, acetone, and ethylene glycol. DEG is a widely used solvent. It can be a normal ingredient in various consumer products, and it can be a contaminant. DEG has also been misused to sweeten wine and beer, and to viscosify oral and topical pharmaceutical products. Its use has resulted in many epidemics of poisoning since the early 20th century.
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Product Info
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| Names | |
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| IUPAC name
2,2′-Oxydiethanol[1]
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| Other names
2,2′-Oxybis(ethan-1-ol)
2-(2-Hydroxyethoxy)ethan-1-ol Diethylene glycol Ethylene diglycol Diglycol 2,2′-Oxybisethanol 2,2′-Oxydiethanol 3-Oxa-1,5-pentanediol Dihydroxy diethyl ether Digenos Digol |
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| Identifiers | |
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3D model (JSmol)
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| ChEBI | |
| ChemSpider | |
| ECHA InfoCard | 100.003.521 |
| KEGG | |
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PubChem CID
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| UNII | |
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CompTox Dashboard (EPA)
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| Properties | |
| C4H10O3 | |
| Molar mass | 106.12 g/mol |
| Appearance | Colorless liquid |
| Density | 1.118 g/mL |
| Melting point | −10.45 °C (13.19 °F; 262.70 K) |
| Boiling point | 244 to 245 °C (471 to 473 °F; 517 to 518 K) |
| miscible | |
| Hazards | |
| Occupational safety and health (OHS/OSH): | |
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Main hazards
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Flammable, mildly toxic |
| GHS labelling: | |
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| NFPA 704 (fire diamond) | |
| Flash point | Combustible |
| Lethal dose or concentration (LD, LC): | |
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LD50 (median dose)
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2 — 25 g/kg (orally, rats) |
| Related compounds | |
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Related diols
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