Puas yog iodine ua hluav taws xob?

Iodine yog cov ntxhia tseem ceeb rau tib neeg kev noj qab haus huv. Tab sis nws puas muaj cov khoom hluav taws xob? Xav paub ntau ntxiv txog lub ntsiab lus ntxim nyiam no hauv tsab ntawv no.

Iodine yog xim dub, ci iab, crystalline khoom ntawm chav tsev kub thiab siab. Nws qhia ib qho chaw ntawm sab xis ntawm lub rooj zaum nrog lwm cov halogens. Iodine yog siv nyob rau hauv ntau yam sib txawv xws li ntsev, inks, catalysts, photographic chemicals, thiab LCDs.

Iodine tsis yog ib tug zoo conductor ntawm hluav taws xob vim hais tias covalent bonds tuav nws cov electrons khov kho (daim ntawv cog lus ntawm ob iodine atoms ua lub iodine molecule, I2). Iodine muaj qhov qis tshaj electronegativity ntawm tag nrho cov halogens.

Iodine yog cov khoom siv tshuaj uas suav tias yog cov hlau tsis muaj hlau thiab feem ntau pom muaj nyob hauv lwm qhov hauv ntiaj teb, suav nrog dej hiav txwv.

Kab lus no yuav qhia koj txog ntau yam ntawm iodine thiab seb nws puas ua hluav taws xob.

Yog vim li cas iodine yog ib tug tsis zoo conductor ntawm hluav taws xob?

Iodine tsis ua hluav taws xob vim tias txhua lub molecule yog tsim los ntawm ob lub iodine atoms tuav ua ke los ntawm covalent daim ntawv cog lus uas tsis tuaj yeem txaus siab rau kev txav hluav taws xob.

Yuav ua li cas cov conductivity ntawm iodine hloov ntawm cov khoom thiab kua?

Txawm li cas los xij, nws cov conductivity tsis hloov ntau ntawm cov khoom thiab cov kua. Txawm hais tias iodine tsis yog tus neeg xyuas pib zoo, ntxiv rau lwm cov ntaub ntawv ua rau lawv cov conductors zoo dua. Iodine monochloride yog ib txoj hauv kev ua kom cov pa roj carbon nanotube xaim hluav taws xob zoo dua.

Tus nqi ntawm iodine hauv dej yog dab tsi?

Iodide yog ionic daim ntawv ntawm iodine. Nws muaj tus nqi tsis zoo, zoo li halogen. I- (electrolyte los yog ion) hauv dej yuav ua rau lwm yam dej ntshiab ua hluav taws xob.

Hom insulator zoo tshaj rau iodine?

Yog tias koj tuaj yeem tau txais iodine hauv daim ntawv ua kua, nws yuav yog covalent. Covalent compounds kuj yog qhov zoo tshaj plaws insulators, yog li lawv tsis txhob cia hluav taws xob los ntawm (uas tshwm sim thaum ions txav).

Dab tsi yog cov yam ntxwv ntawm iodine?

Nyob rau hauv chav tsev kub, lub ntsiab iodine yog cov khoom dub, ci iab thiab txheej. Nws yog qee zaum pom nyob rau hauv cov xwm li pob zeb lossis pob zeb, tab sis feem ntau pom muaj nyob rau hauv daim ntawv ntawm iodide, anion (I–). Cov me me yog qhov txaus ntshai me ntsis, tab sis qhov loj me yog qhov txaus ntshai. Hauv nws daim ntawv tseem ceeb, iodine ua rau daim tawv nqaij rwj, thiab iodine gas (I2) irritates lub qhov muag.

Txawm hais tias iodine yuav tsis zoo li cov tshuaj fluorine, chlorine, lossis bromine, nws tseem tsim cov tebchaw nrog ntau lwm cov ntsiab lus thiab suav tias yog corrosive. Iodine yog cov khoom uas tsis yog hlau tab sis muaj qee yam khoom siv hlau (tsuas yog nws lub ntsej muag ci los yog ci ntsa iab). Iodine yog ib qho insulator, zoo li ntau yam tsis yog hlau, yog li nws tsis ua cua sov lossis hluav taws xob zoo heev.

Qhov tseeb txog iodine

• Cov khoom iodine zoo li dub, tab sis nws yog xim xiav-violet xim uas phim cov xim ntawm gaseous iodine, ntshav.
• Iodine yog cov khoom hnyav tshaj plaws uas muaj sia nyob xav tau thiab kuj yog ib qho ntawm qhov tsawg tshaj plaws.
• Feem ntau ntawm iodine tsim txhua xyoo yog siv los ua ib qho ntxiv hauv cov tsiaj pub.
• Thawj zaug siv iodized ntsev yog nyob rau hauv Michigan xyoo 1924. Cov neeg uas nyob ze dej hiav txwv thiab noj nqaij nruab deg hauv Tebchaws Meskas tau txais iodine txaus los ntawm ib puag ncig. Tab sis thaum kawg nws tau pom tias tsis muaj iodine ua rau muaj kev pheej hmoo ntawm goiter thiab nthuav cov thyroid caj pas nyob rau hauv cov neeg nyob rau hauv outback. Cov av los ntawm Rocky Toj siab mus rau Great Lakes thiab sab hnub poob New York tau hu ua "crop Belt".
• Cov thyroid hormone yog qhov tseem ceeb rau kev loj hlob ntawm lub hlwb thiab lub cev. Txij li cov thyroid caj pas xav tau iodine los tsim cov tshuaj hormone thyroxine, qhov tsis muaj iodine ua ntej yug (los ntawm leej niam) lossis thaum menyuam yaus tuaj yeem ua rau muaj teebmeem kev puas hlwb lossis kev loj hlob ntawm tus menyuam. Kev tsis txaus iodine yog qhov ua rau muaj kev puas siab puas ntsws uas tuaj yeem kho tau. Qhov no hu ua congenital hypothyroidism, uas txhais tau hais tias ib tug neeg tsis muaj cov thyroid hormone txaus txij thaum yug los.

Raws li koj tuaj yeem pom, iodine yog cov khoom siv hluav taws xob tsis zoo. Vim li no, nws yog siv nyob rau hauv ntau lub sij hawm raws li ib feem ntawm ib tug uas tsis yog-hluav taws xob conductor. Thaum nrhiav cov khoom siv tsis zoo rau qhov xwm txheej, koj xav kom nws tsis cuam tshuam nrog hluav taws xob.

Ua tib zoo saib qee qhov ntawm peb cov lus hauv qab no.

• Sucrose ua hluav taws xob
• Nitrogen ua hluav taws xob
• Isopropyl cawv ua hluav taws xob