Ethylene glycol, tseem hu ua glycol, yog qhov yooj yim tshaj plaws aliphatic diol. Nws muaj cov khoom siv tshuaj lom neeg ntawm cov cawv, xws li lub peev xwm los tsim cov ethers thiab esters, tuaj yeem oxidized los tsim cov aldehydes lossis acids, thiab tuaj yeem condense los tsim cov ethers.

Tsos: tsis muaj xim, pob tshab, kua nplaum.

Siv: Ethylene glycol feem ntau yog siv ua cov khoom siv raw rau polyester fibers thiab kuj siv rau hauv lwm cov polyester resins, unsaturated polyester resins, thiab 1730 polyester xim. Ntau hom surfactants tuaj yeem tau los ntawm ethylene glycol thiab polyethylene glycol. Nws cov dinitro compound, dinitroethylene glycol, yog ib qho khoom tawg. Ethylene glycol tuaj yeem txo qhov khov ntawm cov kua dej thiab yog li ntawd feem ntau siv ua antifreeze.

Cov Khoom ntawm Ethylene glycol

Melting point -13°C (lit.)

Kub taw tes 195-198 ° C

Qhov Ceev 1.113 g/mL ntawm 25°C (lit.)

Qhov ceev ntawm cov pa roj 2.1 (piv rau huab cua) Qhov siab ntawm cov pa roj 0.08 mmHg (20°C)

Qhov kub hnyiab 230°F

Cov xwm txheej cia khoom 2-8 ° C

Kev yaj hauv dej: Miscible Form Viscous liquid Acidity coefficient (pKa) 14.22 (ntawm 25 ° C)

Xim xiav

Qhov sib piv polarity 0.79 pH tus nqi 6-7.5 (100 g/l, H2O, 20°C) Tsw (Tsw) Tsis muaj ntxhiab

Cov ntaub ntawv tiv tauj:

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