143-24-8 Usage
Description
Tetraethylene glycol dimethyl ether, also known as tetraglyme, is an organic aprotic colorless solvent with film-forming ability. It is a clear liquid that exhibits chemical and thermal stability, making it suitable for various applications.
Uses
Used in Solvent Applications:
Tetraethylene glycol dimethyl ether is used as a solvent for various purposes due to its chemical and thermal stability. It is particularly effective as a solvent for high-temperature reactions because of its high boiling point.
Used in Lithium-Ion Battery Technology:
In the field of lithium-ion battery technology, tetraethylene glycol dimethyl ether is utilized in conjunction with trifluoroethanol as a working pair for organic absorption heat pumps.
Used in Cleaning and Degreasing:
Tetraethylene glycol dimethyl ether is employed as a solvent for cleaning and degreasing applications, taking advantage of its chemical and thermal stability to effectively remove contaminants.
Used in the Promotion of Cell Adhesion:
This solvent is also used in the selective adsorption of proteins during the promotion of cell adhesion, which is crucial in various biological and medical applications.
Used in High-Temperature Reactions:
Due to its high boiling point, tetraethylene glycol dimethyl ether is an ideal solvent for high-temperature reactions, ensuring that the reaction proceeds efficiently without the risk of the solvent evaporating prematurely.
Flammability and Explosibility
Nonflammable
Safety Profile
Mildly toxic by ingestion. Experimental reproductive effects. An eye irritant. Many glycol ethers are suspected of having dangerous human reproductive effects. When heated to decomposition it emits acrid smoke and irritating fumes. See also GLYCOL ETHERS
Purification Methods
Stand the ether over CaH2, LiAlH4 or sodium, and distil it when required. [Beilstein 1 IV 2404.]
Check Digit Verification of cas no
The CAS Registry Mumber 143-24-8 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 1,4 and 3 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 143-24:
(5*1)+(4*4)+(3*3)+(2*2)+(1*4)=38
38 % 10 = 8
So 143-24-8 is a valid CAS Registry Number.
InChI:InChI=1/C8H18O5.C2H6O/c9-1-3-11-5-7-13-8-6-12-4-2-10;1-3-2/h9-10H,1-8H2;1-2H3
143-24-8Relevant articles and documents
METHOD FOR THE PRODUCTION OF POLYOXYMETHYLENE DIALKYL ETHERS FROM TRIOXAN AND DIALKYLETHERS
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Page/Page column 6, (2008/06/13)
The invention relates to a method for production of polyoxymethylene dialkyl ethers of formula H2m+1CmO(CH2O)nCmH2m+1, where n = 2 - 10, m independently = 1 or 2, in which a dialkyl ether selected from dimethyl ether, methyl ethyl ether or diethyl ether and trioxan are fed into a reactor and reacted in the presence of an acid catalyst, whereby the amount of water introduced into the reaction mixture with the dialkyl ether, trioxan and/or the catalyst is 1 wt. %, with relation to the reaction mixture.
Cleavage of different ether bonds in butyl glycidyl ether and allyl glycidyl ether by K-, K+ (15-crown-5)2
Grobelny, Zbigniew,Stolarzewicz, Andrzej,Maercker, Adalbert,Krompiec, Stanis?aw,Bieg, Tadeusz
, p. 133 - 138 (2007/10/03)
The kind of substituent in alkyl glycidyl ethers affects the course of their reaction with K1, K+ (15-crown-5)2. The cyclic oxirane ring is exclusively cleaved in the case of butyl glycidyl ether whereas the presence of the unsaturated allyl group in the glycidyl ether molecule unexpectedly prefers the scission of the linear ether bond. In both the systems organometallic intermediates are formed. They react with crown ether causing its ring opening. Allylpotassium formed from allyl glycidyl ether reacts also with another glycidyl ether molecule; the oxirane ring is opened in this case.
SYNTHESIS OF DIALKYL ETHERS OF POLYETHYLENE GLYCOLS
Barnakov, Ch. N.,Volgin, A. A.
, p. 152 - 155 (2007/10/02)
Methods were developed for synthesis of dimethyl and diethyl ethers of polyethylene glycols in one step (without isolation of intermediates) with the general formula R(OC2H4)mOR, where R=CH3, C2H5 and m=2-6 (degree of polyglycolicity).As starting materials monomethyl and monoethyl ethers of polyethylene glycols of the formula R(OC2H4)nOH were used, where n=1-3.As reagents toluenesulfonyl chloride and methanesulfonyl chloride were used.