Reagent hais txog tib lub ntsiab lus ntawm chemistry ib yam li lwm tus. Nws yog ib qho tshuaj reagent uas activates lub tsim nyog muaj pes tsawg leeg thiab activates cov tshuaj tiv thaiv. Nws feem ntau yog koom nrog hauv cov tshuaj tiv thaiv nws tus kheej. Tab sis dab tsi ntxiv koj tuaj yeem paub txog nws? Nws muaj dab tsi thiab qhov tshwm sim dab tsi tuaj yeem cuam tshuam tsis ncaj ncees lawm ntawm qee cov ntsiab lus ua rau? Thiab tseem yog dab tsi nthuav cov khoom muaj cov reagents, txij li thaum lawv raug tso cai siv nyob rau hauv lub neej txhua hnub? Tag nrho cov no thiab ntau ntxiv yog paub rau txhua tus kws tshaj lij kws tshuaj uas tau txais kev kawm tsim nyog.
Dab tsi yog reagent? Yog lawm, txhua tus neeg tau kawm chemistry hauv tsev kawm ntawv cov ntaub ntawv kawm, tab sis nws tsis zoo li tias tam sim no nws yuav yooj yim rau nco qab lub ntsiab lus thiab siv cov reagent. Yog li ntawd, me ntsis tom qab, txhua txoj kev nthuav dav ntawm kev siv nws yuav raug nthuav tawm.
reagent yog dab tsi thiab txhais li cas?
Nws txoj haujlwm yog ua kom muaj kev tawm tsam lossis ua kom nrawm nrawm. Nws yog ib qho active tshuaj. Yog hais tias peb tham txog lub ntsiab lus ntawm lo lus "reagent", nws yog tsim nyog sau cia hais tias nws yog los ntawm lo lus"react", synonymous nrog reagent - reagent. Ib qho reagent, piv txwv li, hydrogen fluoride, yog qhov txaus ntshai thiab yog ib yam khoom hnyav heev. Tab sis nws cov khoom muaj txiaj ntsig, uas muaj peev xwm ua rau muaj qhov tsim nyog tshwm sim, tsuas yog hloov tsis tau hauv kev lag luam tshuaj niaj hnub no.
Cov tshuaj reagent ua rau cov tshuaj lom neeg tuaj yeem ua rau lub neej thiab txav mus los, hauv lwm lo lus, nws ua rau lawv txav mus, ua kom lawv nrawm dua. Qhov tshwm sim yog qhov kev sim tshuaj lom neeg lossis qhov ua tiav ntawm qhov xav tau cov tshuaj tiv thaiv. Txuas ntxiv los tham txog lub ntsiab lus ntawm reagent, nws yuav tsum tau hais tias lo lus no tau txhais los ntawm Latin li "ib yam khoom uas nyob hauv lwm yam khoom." Tab sis qhov no tsuas yog piv txwv, vim nws txaus rau nws tsuas yog kov lwm lub ntsiab lus, sai li sai tau thaum cov tshuaj tiv thaiv pib.
Siv reagent
Dab tsi yog reagent, peb twb tau txheeb xyuas lawm, nws tsuas yog nrhiav kom paub qhov chaw ntawm nws siv tsis yog hauv chemistry nkaus xwb, tab sis kuj tseem muaj nyob rau hauv industrial thiab domestic ntau lawm. Lub hom phiaj feem ntau ntawm kev ntxiv cov reagent yog kom tau cov hlau. Nws tsis pub leejtwg paub tias qee qhov sib txuas ntawm cov khoom pheej yig thiab yooj yim muaj hlau nrog cov reagent tuaj yeem hnov qab thiab tsim cov hlau muaj txiaj ntsig. Xws li kub, piv txwv li.
Ntxiv rau kev rho tawm thiab tsim nws tus kheej ntawm cov hlau, cov reagent yog siv hauv kev tshawb fawb hauv chav kuaj. Chemists koom nrog hauv kev tsim tshuaj thiab kev tawm tsam cov kab mob tuaj yeem sau npe txhua hom kev tshwm sim paub rau lawv nrog qhov tseeb tseeb. Lawv kuj siv lawv hauv lawv qhov kev sim. Nws kuj tsimdeactivating formulations. Yog li, los ntawm kev ntxiv qhov tseeb ntawm reagent rau qhov sib tov, cov khoom tsis zoo tuaj yeem tau txais uas txwv tsis pub cov tshuaj tiv thaiv. Ntau cov kua qaub, alkalis ntawm txhua yam, thiab ntau yam ntsev - thiab lawv xa mus rau qhov reagent tuaj yeem tsim.
Reagent hauv tib neeg lub neej
Ib txhia yuav xav tsis thoob, tab sis qhov tseem ceeb xws li kev kuaj cev xeeb tub kuj muaj cov tshuaj reagents. Tom qab tag nrho, nws yog tus uas pab txiav txim seb tus ntxhais xeeb tub los yog tsis. Dab tsi yog reagent hauv lub neej txhua hnub? Cov tshuaj ntxuav tais diav, ntsev, hmoov - tag nrho cov khoom siv hauv tsev niaj hnub no tau tsim los siv cov tshuaj reagent.
