Qhov txawv ntawm Ethylmercury thiab Methylmercury

Cov txheej txheem:

Qhov txawv ntawm Ethylmercury thiab Methylmercury
Qhov txawv ntawm Ethylmercury thiab Methylmercury

Video: Qhov txawv ntawm Ethylmercury thiab Methylmercury

Video: Qhov txawv ntawm Ethylmercury thiab Methylmercury
Video: Qhov txawv ntawm Zaj Tshoob and Txiv Xaiv 2024, Lub Xya hli ntuj
Anonim

Qhov sib txawv tseem ceeb ntawm ethylmercury thiab methylmercury yog tias ethylmercury muaj ib pawg ethyl nrog rau cov mercury whereas methyl mercury muaj ib pab pawg methyl nrog rau cov mercury. Cov tshuaj formula ntawm ethylmercury yog C2H5Hg+ thiab cov tshuaj formula ntawm methylmercury yog CH 3Hg+

Ob qho tib si ethylmercury thiab methylmercury yog organometallic cations. Qhov ntawd txhais tau tias; Ob lub tebchaw no muaj cov nqi zoo nrog rau cov hlau thiab ib pawg organic.

YEthylmercury yog dab tsi?

Ethylmercury yog ib qho organometallic cation uas muaj cov tshuaj formula C2H5Hg+. Ntawm no, ib pawg ethyl txuas nrog mercury (II) chaw. Nws yog ib qho metabolite uas peb siv feem ntau ua cov tshuaj tiv thaiv hauv qee cov tshuaj tiv thaiv.

Cov nyiaj sib koom ua ke ntawm cov pa roj carbon hauv pawg ethyl thiab mercury atom yog covalent daim ntawv cog lus. Nws yog vim qhov sib piv me ntsis qhov sib txawv ntawm cov txiaj ntsig electronegativity ntawm carbon thiab mercury. Ntxiv mus, cov kws tshawb fawb tau pom tias lub kaum sab xis ntawm daim ntawv cog lus yog linear ntawm carbon thiab mercury.

Qhov txawv ntawm Ethylmercury thiab Methylmercury
Qhov txawv ntawm Ethylmercury thiab Methylmercury

Daim duab 1: Cov qauv ntawm Ethylmercury

Cov kev tshawb fawb ntawm ethylmercury toxicity tseem tab tom ua. Yog li ntawd, peb siv cov ntaub ntawv toxicity ntawm methylmercury los kwv yees qhov toxicity ntawm cov compound no. Ethylmercury tuaj yeem muab faib rau txhua lub cev nqaij daim tawv, txawm tias hla cov hlab ntsha-hlwb barrier. Tsis tas li ntawd, qhov sib xyaw no txav mus los ntawm lub cev.

Methylmercury yog dab tsi?

Methylmercury yog ib qho organometallic cation uas muaj cov tshuaj formula CH3Hg+Nyob ntawd, ib pawg methyl txuas nrog mercury (II). Rau txhua tus tib neeg, qhov sib xyaw no yog qhov tseem ceeb ntawm cov organic mercury. Txawm li cas los xij, qhov no yog bio-accumulative thiab tseem yog ib puag ncig toxicant.

Qhov txawv tseem ceeb - Ethylmercury vs Methylmercury
Qhov txawv tseem ceeb - Ethylmercury vs Methylmercury

Daim duab 2: Cov qauv ntawm Methylmercury

Vim tias cov ion no muaj cov nqi zoo, nws tau nkag mus rau cov anions xws li chloride ion. Ntxiv mus, qhov no muaj kev sib raug zoo rau cov sulfur-muaj anions ib yam nkaus. Thaum xav txog qhov tsim ntawm cov tshuaj no, nws tsim los ntawm microbial kev ua haujlwm ntawm inorganic mercury. Cov kab mob uas nyob hauv pas dej, dej ntws, cov av ntub dej, av, thiab lwm yam tuaj yeem ua tau li no. Txawm li cas los xij, qee qhov chaw ntuj tsim xws li hluav taws kub, hluav taws kub hnyiab, thiab lwm yam tuaj yeem tsim qhov no.

Methylmercury yog tshuaj lom heev thiab yog tias peb noj nws, cov tshuaj no tau nkag mus rau hauv lub plab zom mov. Nws tuaj yeem tsim cov complexes nrog cysteine thiab protein nyob rau hauv cov amino acids. Qhov tseem ceeb tshaj plaws, cov khoom sib xyaw no yog cov tshuaj lom heev thiab nws muaj tshuaj lom ntau dua li ethylmercury thiab.

Qhov txawv ntawm Ethylmercury thiab Methylmercury yog dab tsi?

Ethylmercury yog ib qho organometallic cation uas muaj cov tshuaj formula C2H5Hg+ Methylmercury yog ib qho organometallic cation muaj cov tshuaj formula CH3Hg+ Yog li ntawd, qhov sib txawv tseem ceeb ntawm ethylmercury thiab methylmercury yog ethyl mercury muaj ib pawg ethyl nrog. nrog mercury whereas methyl mercury muaj ib pawg methyl nrog rau mercury.

Ntxiv mus, methylmercury yog tshuaj lom heev hauv kev sib piv rau ethylmercury. Tsis tas li, raws li lwm qhov sib txawv tseem ceeb ntawm ethylmercury thiab methylmercury, peb tuaj yeem hais tias ethylmercury tsis yog bio-accumulative tab sis methylmercury yog bio-accumulative heev.

Cov lus hauv qab no qhia txog qhov sib txawv ntawm ethylmercury thiab methylmercury.

Qhov sib txawv ntawm Ethylmercury thiab Methylmercury hauv Tabular Form
Qhov sib txawv ntawm Ethylmercury thiab Methylmercury hauv Tabular Form

Summary – Ethylmercury vs Methylmercury

Ethylmercury thiab methylmercury yog organometallic cations. Qhov sib txawv tseem ceeb ntawm ethylmercury thiab methylmercury yog tias ethyl mercury muaj ib pawg ethyl nrog rau cov mercury thaum methyl mercury muaj ib pawg methyl nrog rau cov mercury. Ntxiv mus, methylmercury yog tshuaj lom heev nyob rau hauv kev sib piv rau ethylmercury.

Pom zoo: