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107-21-1 - Ethylene glycol, 99% - 1,2-Dihydroxyethane - 1,2-Ethanediol - A11591 - Alfa Aesar

A11591 Ethylene glycol, 99%

CAS 번호
107-21-1
동의어
1,2-Dihydroxyethane
1,2-Ethanediol

사이즈 가격 ($) 수량 재고 여부
250g 16.70
500g 23.90
2500g 66.00
10000g 196.00
장바구니에 추가 대량 견적에 추가 항목 보기

Ethylene glycol, 99%

MDL
MFCD00002885
EINECS
203-473-3

화학적 특성

화학식
C2H6O2
화학 식량
62.07
융점
-13°
비등점
196-198°
인화점
119°(246°F)
밀도
1.113
굴절률
1.4310
감도
Hygroscopic
용해도
Miscible with water, toluene, tetrahydrofuran, alcohol, chloroform and other organic solvents.

용도

Ethylene glycol is used as a precursor for the syntheses of polymers like polyester fibers, resins and polyethylene terephthalate, which finds application in making plastic bottles. It acts as an intermediate in the synthesis of 1,4-dioxane. It plays an important role in organic synthesis as a protecting group for carbonyl groups. It is a useful desiccant due to its high boiling point and affinity towards water. It plays an important role to remove water vapor from natural gas before proceeding for further processes. Its major application is as a medium for convective heat transfer in automobiles and liquid cooled computers.

참고

Hygroscopic. Keep the container tightly closed in a dry and well-ventilated place. Incompatible with strong acids, strong oxidizing agents, strong bases, aldehydes and aluminum.

참조 문헌

For examples of use in acetal (1,3-dioxolane) formation, catalyzed by tosic acid with azeotropic water removal, see: Org. Synth. Coll., 6, 567 (1988); 7, 241, 271 (1990). A mild dehydrating agent, e.g. triethyl orthoformate may be used as an alternative: J. Org. Chem., 48, 2122 (1983). PPTS (Pyridinium p-toluenesulfonate, A15708) has been recommended as a catalyst for the formation and cleavage of ethylene acetals, being less likely to cause acid-catalyzed rearrangements than tosic acid itself: Synthesis, 724 (1979). For acetalization of ɑß-enals, tartaric acid in the presence of anhydrous MgSO4 gives good results: J. Org. Chem., 60, 2931 (1995). Review of the preparation of acetals: Synthesis, 501 (1981). See also 2,2-Dimethyl-1,3-dioxolane, L00482.

In combination with TMS chloride, ɑß-enones are converted to ß-chloro acetals in one step: Tetrahedron Lett., 25, 3805 (1984).

Pluta, M.; Piorkowska, E. Tough and transparent blends of polylactide with block copolymers of ethylene glycol and propylene glycol. Polym. Test. 2015, 41, 209-218.

Zahmatkesh, H. G,, Javanbakht, M.; Ghaemi, M. Ethylene glycol-assisted hydrothermal synthesis and characterization of bow-tie-like lithium iron phosphate nanocrystals for lithium-ion batteries. J. Power Sources 2015, 284, 339-348.

GHS 해저드 및 주의 설명서

해저드 설명서 (EU): H302-H373

Harmful if swallowed. May cause damage to organs through prolonged or repeated exposure.

주의 설명서: P260-P264-P270-P301+P312a-P314-P501a

Do not breathe dust/fume/gas/mist/vapours/spray. Wash thoroughly after handling. Do not eat, drink or smoke when using this product. IF SWALLOWED: Call a POISON CENTER/doctor if you feel unwell. Get medical advice/attention if you feel unwell. Dispose of contents/container in accordance with local/regional/national/international regulations.

기타 참조

Merck
14,3798
바일슈타인
505945
통합 관세 코드
2905.31
TSCA(독성물질규제법)"
Yes
RTECS(화학물질 독성 등록)
KW2975000

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