Thaum muab piv cov refergity ntawm leej faj thiab iodine, nws yog ib qho tseem ceeb kom nco ntsoov tias cov khoom lag luam feem ntau suav nrog ntau dua li cov leej faj. Qhov kev cuam tshuam no siab dua ntawm nws tuaj yeem yog ntaus nqi rau ntau yam, suav nrog nws txoj haujlwm hauv lub rooj ntu thiab nws cov khoom siv hluav taws xob.Tshuaj aisaudais, Ua ib lub halogen, muaj ntau dua electronegativity thiab ntau dua kev nyiam ua ionic piv rau cov leej txiv, uas yog Chalcogen. Qhov loj dua atomic loj ntawm cov khoom tseem ua rau nws muaj kev cuam tshuam ntau ntxiv, vim nws muaj hluav taws xob rau nws ntau dua rau cov tshuaj lom neeg. Ib qho ntxiv, nws tuaj yeem yooj yim ua daim ntawv sib khi sib haum nrog lwm cov ntsiab lus, koom nrog ntau cov organic thiab inorganic cov tshuaj tiv thaiv. Cov xeeb ceem no ua rau cov khoom lag luam muaj ntau yam khoom siv nyob rau ntau cov ntawv thov, suav nrog cov tshuaj tshuaj, cov polymers, thiab tshuaj tshwj xeeb. Thaum cov txiv neej sulfur yog qhov tseeb reactive nyob rau hauv nws tus kheej txoj cai, tshwj xeeb hauv nws daim ntawv qhia kev sib cais qib theem ntawm nws hla ntau yam tshuaj lom neeg tshuaj lom neeg.
Peb muab iodine npas? 12190-71-5, Thov saib mus rau lub vev xaib hauv qab no rau cov ncauj lus kom ntxaws thiab cov ntaub ntawv.
Khoom:https://www.bloomteechz.com/chemical-reagent/laboratory-reagent/iodine-Qhia-casо{{{{4.html
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Yam cuam tshuam rau cov kev siv hluav taws xob ntawm cov sulphur thiab iodine
Atomic qauv thiab hluav taws xob configuration
Atomic qauv thiab hluav taws xob configuration ntawm leej faj thiabtshuaj aisaudaisyog cov ntsiab lus tseem ceeb uas cuam tshuam lawv cov tshuaj lom neeg xws li. Sulphur, nrog lub tshuab hluav taws xob kev teeb tsa [NE] 3S²3p⁴, muaj rau kev siv hluav taws xob valence hauv nws lub plhaub roj sab nraud. Cov tshuab hluav taws xob ua rau leej fajle kuj yuav ua tau, raws li nws xav tau ob lub electrons ntau dua los ua tiav octet octet kev teeb tsa. Sulphur tuaj yeem tsim cov kev sib txuas lus sib khi nrog ntau yam, feem ntau sib qhia nws lub peev hluav taws xob ua kom tiav nws lub plhaub sab nraud. Nws yog feem ntau pom nyob rau hauv cov lus sib xyaw zoo li sulfur dioxide (so₂) lossis sulfuric acid (hatso₄), uas nws sib haum nrog cov ntsiab lus xws li oxygen. Ntawm qhov tod tes, nws muaj lub tshuab hluav taws xob [KR] 4D¹⁰5s²5p⁵, nrog xya lub peev hluav taws xob hauv nws cov plhaub sab nraud. Ua ib qho hluav taws xob luv luv ntawm lub octet tag nrho, cov khoom lag luam yog cov ntaub ntawv reactive thiab yooj yim npaj nrog lwm cov plhaub. Iodine cov kev ntseeg cuav yog pom tseeb nyob rau hauv nws lub peev xwm kom tau txais hluav taws xob ua kom muaj kev sib txuas lus zoo li cov khoom siv hluav taws xob zoo li kev sib txuas lus zoo li cov khoom siv hluav taws xob zoo li kev sib txuas lus zoo li cov khoom siv hluav taws xob zoo li kev sib txuas lus zoo li cov khoom siv hluav taws xob zoo li kev sib sau ua ke Qhov kev teeb tsa ntawm nws ua rau nws mob siab rau kev koom tes nrog kev koom tes nrog cov tshuaj lom neeg piv piv rau cov leej twg kom tau txais lossis cov tshuab nqa khoom ntau dua.
ElectroneGativity thiab Electron affinity
ElectroneGativity thiab electron affinity yog qhov tseem ceeb uas cuam tshuam rau cov tshuaj xws li kev siv tshuaj lom neeg.Tshuaj aisaudais, raws li halogen, ua pov thawj lub electronegativity tshaj li leej faj. ElectroneGativity tau hais txog ib qho atom lub peev xwm los nyiam cov hluav taws xob hauv kev sib raug zoo tshuaj. Vim nws cov electronegativity, nws muaj lub zog rub tawm ntawm cov tshuab hluav taws xob thaum sib khi nrog lwm cov ntsiab lus, ua rau nws muaj feem ntau los ua polar sib xyawalent lossis ionic sib txuas. Qhov no nce hluav taws xob nyiam ua rau iodine lub peev xwm los koom rau ntau yam ntawm cov tshuaj lom neeg. Ntxiv rau ElectroneGativity, iodine kuj muaj ntau dua electron affinity piv rau cov neeg Sulphur. Laurational yog cov nyiaj ntawm lub zog tso tawm thaum ib qho atom nce ib lub tshuab hluav taws xob. Qhov ntau dua hluav taws xob affinity ntawm cov khoom txhais tau tias nws tau yooj yim lees txais cov hluav taws xob thaum cov tshuaj lom neeg. Cov cuab yeej no ua rau iodine ntau reasive ntau dua li leej faj, raws li nws tuaj yeem tsim cov acions ruaj khov (xws li i⁻) yooj yim, yooj yim rau cov hlau thiab lwm yam tsis muaj peev xwm. Nyob rau hauv kev sib piv, leej faj, nrog lub electronegativity thiab electron affinity, yog li ntawd, zoo li tsis tshua muaj kev cuam tshuam hauv kev sib piv rau iodine. Cov kev sib txawv no hauv electroneGativity thiab electron aroninity pab piav txog qhov tsis sib xws ntawm ob lub ntsiab lus.
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Dab tsi yog qhov cuam tshuam cuam tshuam txog kev siv dag zog ntawm cov sulphur thiab iodine?
Oxidation xeev thiab redox muaj peev xwm
Oxidation xeev thiab redox peev xwm ntawm leej faj thiabtshuaj aisaudaiscuam tshuam loj dua lawv cov kev cuam tshuam. Sulfur can exist in multiple oxidation states, ranging from {{0}} to +6, allowing it to participate in various redox reactions. Txawm li cas los xij, cov khoom lag luam feem ntau ua rau cov tshuaj oxidation ntawm {2}}}}} {}, nrog -1 thiab { {9}} Ua cov feem ntau. Lub zog oxidation ntau dua ntawm nws ua rau nws muaj zog oxidizing tus neeg sawv cev piv tau rau cov leej twg muaj kev cuam tshuam rau ntau cov txheej txheem tshuaj lom neeg.
Lub xeev lub xeev thiab molecular qauv
Lub Xeev lub xeev thiab cov qauv molecular ntawm cov leej faj thiab iodine tseem ceeb cuam tshuam rau lawv cov kev cuam tshuam. Sulphur feem ntau tshwm sim nyob rau hauv nws cov khoom lag luam ua sit₈ molecules, uas yog kev teeb tsa raws li ruaj khov, vib cyclic. Tus qauv ruaj khov no tuaj yeem txwv tus neeg Sulphur lub neej vim tias tawg S₈ cov nplhaib yuav tsum muaj lub zog ntxiv. Ntawm qhov tod tes, iodine muaj li diatomic i₂ molecules hauv ob qho khoom siv thiab gasousous. Cov molecules yooj yim no yooj yim dua kom tawg sib nrug hauv cov tshuaj lom neeg, txhim kho lawv cov kev cuam tshuam. Thaum iodine sublimes los ntawm ib qho khoom siv mus rau roj, nws cov kev cuam tshuam nce txawm ntxiv. Nyob rau hauv lub xeev gaseous, iodine molecules muaj ntau qhov chaw sib txuam nrog kev sib cuam tshuam, tso cai rau kev sib cuam tshuam nrog lwm cov tshuaj piv rau lawv cov ntawv foos. Qhov sib txawv no hauv lub xeev lub cev thiab cov qauv molecular muaj txiaj ntsig rau qhov txawv txav ua refitive profiles ntawm cov leej faj thiab iodine.
Yuav ua li cas uaulfur thiab iodine sib txawv hauv lawv tus cwj pwm tshuaj thiab reactivity?
Cov kev tawm tsam nrog cov hlau thiab tsis yog cov hlau
Sulphur thiab iodine nthuav tawm kev coj cwj pwm txawv thaum rov ua cov hlau thiab tsis yog cov hlau. Sulfur nyhav rau tsim cov sulfides nrog cov hlau, thaum cov khoom tsim Iodides. Iodides tsim yog feem ntau ntau soluble thiab tsis ruaj khov tshaj li lawv cov sulfide counterparts. Thaum reacting nrog cov hlau tsis sib xws, iodine ib txwm ua ke sib txuas lus sib txuas ntxiv tau yooj yim dua li cov leej faj. Piv txwv li, cov khoom reacts yooj yim nrog phosphorus kom tsim cov phosphorus tripsiodide, hos leej faj xav xav xav ua nrog phosphorus.
Kev coj cwj pwm hauv cov organic
Hauv cov organic chemistry, leej faj thiab iodine zaub sib txawv ua qauv. Nws yog feem ntau siv ua oxidizing tus neeg sawv cev thiab tuaj yeem koom nrog hauv electrophilic ntxiv cov kev tiv thaiv nrog alkenes. Nws kuj feem ntau ua haujlwm hauv iodination cov kev tawm tsam ntawm cov duab uas muaj ntxhiab. Sulphur, ntawm qhov tod tes, siv tau ntau dua nyob rau hauv nucleophilic tshua muaj, xws li nyob rau hauv synthesis ntawm thiols thiab thioethers. Qhov sib txawv hauv lawv tus cwj pwm hauv cov organic cov kev tawm tsam stems los ntawm lawv qhov txawv hluav taws xob cov khoom thiab muaj peev xwm tsim ntau hom kev sib tw nrog carbon thiab lwm yam.
Hauv kev xaus, thaum ob tus neeg Sulfur thiab cov khoom yog cov ntsiab tseem ceeb nrog ntau yam kev lag luam,tshuaj aisaudaisFeem ntau cov kev nthuav dav ua rau nws cov hluav taws xob teeb tsa, ntau dua hluav taws xob, thiab ntau yam oxidation olidation. Qhov kev nce qib nce ntxiv ua rau nws muaj txiaj ntsig zoo hauv ntau cov txheej txheem tshuaj lom neeg thiab cov khoom lag luam. Yog xav paub ntxiv txog cov khoom, leej faj, thiab lwm yam khoom siv tshuaj lom neeg, thov hu rau peb ntawmSales@bloomtechz.com.
Ntawv Sawv cev
1. Paj rwb, fa, wilkinson, G., & Gaus, PL (1995). Yooj yim hauv kev siv tshuaj chemical (3rd ed.). John wily & tub.
2. Greenwood, NN, & Basyshaw, A. (1997). Chemistry ntawm lub ntsiab (2nd ed.). Butterworworth-heinemann.
3. Smith, MB, & Peb Hlis, J. (2007). Lub peb hlis ntuj cov tshuaj chemicals siab: kev tawm tsam, kev siv tshuab, thiab cov qauv (6 ed.). John wily & tub.
4. Lub tsev hauv tsev, CE, & Sharpe, Ag (2012). Inorganic chemistry (4 ed.). Kev kawm pearson.