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25322-68-3 - Polyethylene glycol 400 - PEG 400 - B21992 - Alfa Aesar

B21992 Polyethylene glycol 400

CAS Number
25322-68-3
Synonyms
PEG 400

Size Price ($) Quantity Availability
250g 24.84
1000g 53.73
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Polyethylene glycol 400

MDL
MFCD01779601

Chemical Properties

Formula
H(OCH2CH2)nOH
Melting point
4-8°
Flash Point
240°(464°F)
Density
1.126
Refractive Index
1.4660
Sensitivity
Hygroscopic
Solubility
Miscible with water, acetone, alcohols, benzene, glycerin, glycols and aromatic hydrocarbons. Slightly miscible with aliphatic hydrocarbons.

Applications

Polyethylene glycol is used in a variety of pharmaceutical formulations. It finds application in Hewlett-Packard designjet printers as an ink solvent and a lubricant for the print heads. It is an important raw material for the manufacture of polyuretnae, PEG salts of lauric, oleic and stearic acids and latex.

Notes

Hygroscopic. Incompatible with strong oxidizing agents.

Literature References

Polyethylene glycols can act as effective solvents and low-cost phase-transfer catalysts by complexing with cations (see Appendix 2). Examples of reactions promoted by these species:

Nucleophilic displacements of benzyl halides: Synthesis, 184 (1977). Permanganate oxidations: J. Org. Chem., 43, 1532 (1978); Tetrahedron Lett., 3543 (1979). Dichromate oxidations; similar results to carcinogenic HMPA, and to crown ethers.

Good solvent for borohydride reductions: Tetrahedron Lett., 4581 (1979). Stereoselective reduction of alkynes to cis-alkenes using NaBH4 and a catalytic amount of PdCl2 in dichloromethane-PEG: J. Chem. Soc., Chem. Commun., 515 (1982).

Wacker oxidation of olefins to methyl ketones: Tetrahedron Lett., 26, 2263 (1985). Conversion of acids to peracids; see Potassium peroxydisulfate, A15310. Recyclable medium for rapid Baylis-Hillman reactions (see Ammonium bismuth citrate, A17003): Tetrahedron Lett., 45, 5865 (2004).

Liu, W.; Wang, Y.; Li, W.; Yang, Y.; Wang, N.; Song, Z.; Xia, X. F.; Wang, H. Polyethylene Glycol-400-Functionalized Dicationic Acidic Ionic Liquids for Highly Efficient Conversion of Fructose into 5-Hydroxymethylfurfural. Catal. Lett. 2015, 145 (4), 1080-1088.

Din, A. M.; Ahmad, M. A.; Hameed, B. H. Ordered mesoporous carbons originated from non-edible polyethylene glycol 400 (PEG-400) for chloramphenicol antibiotic recovery from liquid phase. Chem. Eng. J. 2015, 260, 730-739.

Other References

Merck
14,7568
Harmonized Tariff Code
3907.20
TSCA
Yes
RTECS
TQ3675000

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