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

B21992 Polyethylene glycol 400

CAS 번호
25322-68-3
동의어
PEG 400

사이즈 가격 ($) 수량 재고 여부
250g 27.90
1000g 60.30
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Polyethylene glycol 400

MDL
MFCD01779601

화학적 특성

화학식
H(OCH2CH2)nOH
융점
4-8°
인화점
240°(464°F)
밀도
1.126
굴절률
1.4660
감도
Hygroscopic
용해도
Miscible with water, acetone, alcohols, benzene, glycerin, glycols and aromatic hydrocarbons. Slightly miscible with aliphatic hydrocarbons.

용도

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.

참고

Hygroscopic. Incompatible with strong oxidizing agents.

참조 문헌

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.

기타 참조

Merck
14,7568
통합 관세 코드
3907.20
TSCA(독성물질규제법)"
Yes
RTECS(화학물질 독성 등록)
TQ3675000

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