Iodine vs Resublimed Iodine
Iodine yog cov khoom siv tshuaj muaj tus lej atomic 53 thiab cov cim tshuaj lom neeg I. Cov tshuaj lom neeg no belongs rau pab pawg ntawm halogens hauv lub sijhawm. Iodine paub txog nws lub peev xwm tshwj xeeb los ua sublimation. Sublimation yog vaporization ntawm iodine crystals yam tsis tau mus rau theem ua kua. Tab sis yog tias cov sublimation thiab deposition tau ua ntau zaus, peb tuaj yeem tau txais ib daim ntawv ntshiab ntawm iodine hu ua resublimed iodine. Qhov sib txawv tseem ceeb ntawm iodine thiab resublimed iodine yog tias iodine yog cov khoom siv tshuaj muaj cim kuv thaum resublimed iodine yog cov tshuaj muaj tshuaj formula I2
Iodine yog dab tsi?
Iodine yog ib yam tshuaj muaj atomic tooj 53 thiab tshuaj cim I. Nws yog ib tug tswv cuab ntawm pawg halogen. Halogen pawg yog pawg 17 ntawm lub sijhawm teem sijhawm. Iodine yog qhov loj tshaj plaws halogen vim nws muaj tus lej atomic siab tshaj plaws ntawm lwm cov halogens hauv pawg ntawd. Iodine yog nonmetal.
Lub ntsiab lus ntawm iodine yog 113.7 ° C. Yog li ntawd, iodine muaj nyob rau hauv cov khoom ntawm chav tsev kub thiab siab. Qhov kub ntawm iodine yog 184.3 ° C. Iodine crystals kuj tuaj yeem ua rau sublimation.
Lub xeev oxidation ruaj khov tshaj plaws ntawm iodine yog -1. Qhov no yog vim hais tias, thaum ib tug electron ntxiv rau ib tug iodine atom, tag nrho cov orbitals ntawm iodine yog sau nrog electrons, uas yog ib tug heev ruaj khov lub xeev. Cov electrons configuration ntawm iodine yog [Kr] 4d10 5s2 5p5 Cov electron ntxiv rau hauv sab nraud 5p orbital. Qhov no tsim cov iodide anion (I–). Yog li ntawd iodine yog ib tug zoo oxidizing neeg sawv cev (ib yam khoom uas yuav txo tau los ntawm oxidizing ib tug sib txawv compound). Txawm li cas los xij, lub atomic radius ntawm iodine yog siab dua halogen atoms; Yog li ntawd iodine muaj ib tug tsawg nqi ceev. Qhov no ua rau nws tsis tshua muaj zog dua li lwm cov halogens. Qhov no ua rau iodine tsawg kawg nkaus oxidizing tus neeg sawv cev (ntawm halogens).
Daim duab 01: Iodine
Khoom iodine zoo li tsaus violet crystals. Cov kua iodine thiab iodine vapor muaj cov xim violet ci ntsa iab. Iodine crystals yog heev soluble nyob rau hauv nonpolar solvents. Ej: hexane. Thaum yaj hauv hexane, nws tsim cov kua xim av xim av.
Resublimed Iodine yog dab tsi?
Resublimed iodine yog iodine uas yog sublimed rau ib pliag lossis ntxiv sijhawm. Sublimation ntawm iodine yog hloov dua siab tshiab ntawm cov khoom iodine mus rau hauv iodine vapor ncaj qha, tsis mus dhau ib theem ua kua. Lo lus no yuav tsum tsis txhob totaub nrog "de-sublimation", uas yog cov txheej txheem rov qab ntawm sublimation. Cov txheej txheem muaj xws li sublimation ntawm iodine, tom qab ntawd deposition li crystals, ua raws li sublimation dua.
Daim duab 2: Iodine Evaporation
Resublimed iodine yog purer dua li ib txwm iodine; purity yog li 99-100%. Cov tshuaj formula ntawm resublimed iodine yog I2.
Qhov txawv ntawm Iodine thiab Resublimed Iodine yog dab tsi?
Iodine vs Resublimed Iodine |
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| Iodine yog ib yam tshuaj uas muaj tus lej atomic 53 thiab cov cim tshuaj I. | Resublimed iodine yog iodine uas yog sublimed rau ib pliag lossis ntxiv sijhawm. |
| Nature | |
| Iodine yog ib lub violet tsaus nti ntawm chav sov, uas yog cov kua violet thaum yaj thiab violet vapor thaum vaporized. | Resublimed iodine yog iodine tau los ntawm sublimation ntawm iodine, ces deposition li crystals, ua raws li sublimation dua. |
| Symbol or Formula | |
| Cov cim tshuaj ntawm iodine yog I. | Tshuaj lom neeg ntawm resublimed iodine yog I2. |
Iodine vs Resublimed Iodine
Iodine yog halogen, feem ntau siv los ua tus neeg sawv cev oxidizing. Resublimed iodine yog tsim los ntawm iodine crystals kom tau ib daim ntawv ntshiab ntawm molecular iodine. Qhov sib txawv tseem ceeb ntawm iodine thiab resublimed iodine yog tias iodine yog cov khoom siv tshuaj muaj cim kuv thaum resublimed iodine yog cov tshuaj muaj tshuaj formula I
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