Ethylene glycol CAS 107-21-1

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, kom oxidized los tsim cov aldehydes lossis acids, thiab kom condense los tsim cov ethers. Nws kuj tseem tuaj yeem hloov los ntawm halogens. Thaum reacting nrog acyl chlorides lossis acid anhydrides, diesters feem ntau tsim. Thaum cua sov nyob rau hauv lub xub ntiag ntawm ib tug catalyst (manganese dioxide, txhuas oxide, zinc oxide lossis sulfuric acid), nws tuaj yeem dehydrated intramolecularly lossis intermolecularly los tsim cyclic ethylene glycol acetal, uas reacts nrog nitric acid los tsim ethylene glycol dinitrate (ib qho tawg). Ethylene glycol yog ib qho khoom siv raw rau kev tsim cov polyester resins, alkyd resins, thiab polyester fibers. Nws kuj tseem siv tau ua ib qho automotive antifreeze thiab aircraft engine refrigerant.

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, yog li nws feem ntau siv ua tus neeg sawv cev antifreeze.

Txoj kev tsim khoom

1. Ethylene oxide ncaj qha hydration txoj kev

2. Ethylene oxide sulfuric acid catalytic hydration txoj kev

3. Txoj kev ua kom dej Ethylene ncaj qha

4. Txoj kev sib xyaw Ethylene dichloride.

5. Txoj kev formaldehyde

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