Diethylene glycol diethyl ether
Structural formula | ||||||||||||||||||||||
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General | ||||||||||||||||||||||
Surname | Diethylene glycol diethyl ether | |||||||||||||||||||||
other names |
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Molecular formula | C 8 H 18 O 3 | |||||||||||||||||||||
Brief description |
colorless liquid with a characteristic odor |
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properties | ||||||||||||||||||||||
Molar mass | 162.23 g mol −1 | |||||||||||||||||||||
Physical state |
liquid |
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density |
0.91 g cm −3 |
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Melting point |
−44 ° C |
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boiling point |
189 ° C |
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Vapor pressure |
0.79 mbar (20 ° C) |
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solubility |
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Refractive index |
1.4115 (20 ° C) |
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safety instructions | ||||||||||||||||||||||
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Toxicological data | ||||||||||||||||||||||
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . Refractive index: Na-D line , 20 ° C |
Diethylene glycol diethyl ether is a chemical compound from the group of glycol ethers .
Extraction and presentation
Diethylene glycol diethyl ether can be obtained by reacting ethylene glycol monoethyl ether with diethyl sulfate .
properties
Diethylene glycol diethyl ether is a slightly volatile, colorless, oily, hardly flammable liquid with a characteristic odor that is miscible with water. According to Antoine, the vapor pressure function results from ln (P) = A− (B / (T + C)) (P in kPa, T in K) with A = 17.5759, B = 5675.286 and C = −21.321 im Temperature range from 363 to 453 K. The enthalpy of vaporization at the boiling point is 48.3 kJ · mol −1 .
use
Diethylene glycol diethyl ether is used as a high boiling point solvent .
safety instructions
The vapors of diethylene glycol diethyl ether can form an explosive mixture ( flash point 70 ° C, ignition temperature 174 ° C) when heated with air .
Individual evidence
- ↑ Entry on DIETHOXYDIGLYCOL in the CosIng database of the EU Commission, accessed on June 27, 2020.
- ↑ a b c d e f g h i j k l m Entry for CAS no. 112-36-7 in the GESTIS substance database of the IFA , accessed on July 6, 2015(JavaScript required) .
- ^ William M. Haynes: CRC Handbook of Chemistry and Physics, 96th Edition . CRC Press, 2015, ISBN 978-1-4822-6097-7 , pp. 176 ( limited preview in Google Book search).
- ↑ a b c Entry on diethylene glycol diethyl ether in the Hazardous Substances Data Bank , accessed on July 6, 2015.
- ↑ Ming-Jer Lee, Chang-Ching Su, Ho-mu Lin: Vapor Pressures of Morpholine, Diethyl Methylmalonate, and Five Glycol Ethers at Temperatures up to 473.15 K in J. Chem. Eng. Data 50 (2005) 1535-1538, doi : 10.1021 / je049627d .
- ↑ Stephenson, RM; Malanowski, S .: Handbook of the Thermodynamics of Organic Compounds , Springer 1987, ISBN 978-94-010-7923-5 , doi : 10.1007 / 978-94-009-3173-2 .