638-56-2

Basic information

• Product Name: DIETHYLENE GLYCOL BIS(2-CHLOROETHYL) ETHER
• Synonyms: BIS[2-(2-CHLOROETHOXY)ETHYL] ETHER;DIETHYLENE GLYCOL BIS(2-CHLOROETHYL) ETHER;1,11-DICHLORO-3,6,9-TRIOXAUNDECANE;TETRAETHYLENE GLYCOL DICHLORIDE;ether,bis(2-(2-chloroethoxy)ethyl);DEGbis(2-chloroethyl)ether;TETRAGLYCOLDICHLORIDE;1,1''-OXYBIS(2-(2-CHLOROETHOXY)ETHANE)
• CAS NO: 638-56-2
• Molecular Formula: C₈H₁₆Cl₂O₃
• Molecular Weight: 231.12
• Mol File: 638-56-2.mol
• Article Data: 22

Chemical Properties

• Boiling Point: 139°C/3mm
• Flash Point: 108.7 °C
• Appearance: /
• Density: 1.18 g/mL at 20 °C(lit.)
• Vapor Pressure: 0.00234mmHg at 25°C
• Refractive Index: n20/D 1.464
• BRN: 1071710
• CAS DataBase Reference: DIETHYLENE GLYCOL BIS(2-CHLOROETHYL) ETHER(CAS DataBase Reference)
• NIST Chemistry Reference: DIETHYLENE GLYCOL BIS(2-CHLOROETHYL) ETHER(638-56-2)
• EPA Substance Registry System: DIETHYLENE GLYCOL BIS(2-CHLOROETHYL) ETHER(638-56-2)

Safety Data

• Hazard Codes: T,Xi
• Statements: 21-25
• Safety Statements: 36/37/39-45
• RIDADR: UN 2810 6.1/PG 3
• WGK Germany: 3
• RTECS: KN0525000
• HazardClass: 6.1(b)
• PackingGroup: III
• Hazardous Substances Data: 638-56-2(Hazardous Substances Data)

Usage

Chemical Properties

Colorless liquid. Slightly soluble in water. Combustible.

Uses

Different sources of media describe the Uses of 638-56-2 differently. You can refer to the following data:
1. Bis[2-(2-chloroethoxy)ethyl] ether was used in preparation of series of para-(1,1,3,3-tetramethylbutyl)-phenoxypoly(ethoxy)ethanols. It was used in the synthesis of 1-(4-pyridiniumaldoxime)-2-(((2-chloroethoxy)-2-ethoxy)ethoxy)ethane.
2. High-boiling solvent and extractant for oils, fats, waxes, and greases; chemical intermediate.

InChI:InChI=1/C8H16Cl2O3/c9-1-3-11-5-7-13-8-6-12-4-2-10/h1-8H2

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Relevant articles and documents

Polyethylene glycol chain connected dication ionic liquid and preparation method thereof, and SO2 gas trapping method

The invention discloses a polyethylene glycol (PEG) chain connected dication ionic liquid and a preparation method thereof, and an SO2 trapping method. According to the PEG chain linked dication ionicliquid, an ionic liquid composition comprises an anion and a cation; the cation is described in the specification, wherein R is CmH2m+1, m is an integer, m is more than or equal to 0 and less than orequal to 10, and n is an integer and is greater than or equal to 1 and less than or equal to 12. A PEG chain is connected with two imidazole or imidazole analogue biimidazole cations to be matched with different types of anions to form the stable and low-toxicity PEG chain connected functional dication ionic liquid, and the PEG chain connected functional dication ionic liquid is used for SO2 treatment, so that an efficient and reversible absorption effect can be achieved.

Lead(ii) tetrafluoroborate and hexafluorophosphate complexes with crown ethers, mixed O/S- and O/Se-donor macrocycles and unusual [BF4] - and [PF6]- coordination

The reaction of Pb[BF4]2 in H2O/MeCN solution with the macrocycle 18-crown-6 gave the dinuclear complex [{Pb(18-crown-6)(H2O)(μ2-BF4)} 2][BF4]2, containing two nine-coordinate lead centres, each bound to all six oxygens of a crown ligand, one water molecule and bridged by two μ2-BF4 groups. In contrast, the oxa-thia crown [18]aneO4S2 gave the mononuclear [Pb([18]aneO4S2)(H2O)2(BF 4)][BF4] in which the lead is coordinated O 4S2 within the puckered ring of the macrocycle, and with two water molecules on one side of the plane and a chelating (κ2) BF4- on the other. The [Pb([18]aneO4Se2)(BF4)2] has the two BF4- groups arranged mutually cis and with the macrocycle folded; within each BF4- group the Pb-F distances differ by ～0.5 A, producing a very unsymmetrical chelate. The 15-membered ring macrocycles 15-crown-5 and [15]aneO3S2 produce sandwich complexes [Pb(macrocycle)2][BF4]2 which contain 10-coordinate lead centres. Pb[PF6]2 in H2O/MeCN solution formed [Pb(18-crown-6)(H2O) 2(PF6)][PF6] and [Pb([18]aneO4S 2)(H2O)2(PF6)][PF6] which contain weak κ2-coordination of the PF6- group on the opposite side of the macrocyclic ring to two coordinated water molecules, giving 10-coordinate lead. In contrast, [Pb([18]aneO 4Se2)(PF6)2] has two κ2-coordinated PF6- groups disposed cis, with a very folded macrocycle conformation. In [Pb(18-crown-6)(NO 3)(PF6)] a chelating nitrate group occupies the coordination sites at Pb(ii) instead of the two water molecules, and the weakly coordinating PF6- group is tridentate. The crystal structures of the lead nitrate complexes, [Pb(15-crown-5)(NO3) 2] and [Pb([18]aneO4Se2)(NO3) 2], containing nine- and 10-coordinate lead respectively, are also reported. In solution the complexes are labile, and both conductivity and 19F NMR spectroscopic studies show the BF4- and PF6- groups are dissociated, whereas in the nitrate complexes the anion coordination is retained in solution. The identification of the coordination modes of the NO3- and BF4 - groups in the solid complexes by IR spectroscopy is discussed. The Royal Society of Chemistry 2013.

Studies on the photochemical behavior of N-salicylidenaniline in chloroform

An N-salicylidenaniline (SA), compound 1 with 15-crown-5 moiety, was synthesized. The time-dependent NMR was used to track its photochromic process. The experimental results showed that ultraviolet irradiation would lead compound 1 to decompose into the corresponding salicylaldehyde and amine in chloroform solution, instead of experiencing a photochromic process. By the same method, the reported photochromic results of other SAs were also corrected.