Anhydrous Calcium Chloride yog dab tsi?

Calcium Chloride Tsis Muaj Dejyog ib qho tshuaj lom neeg uas muaj cov mis CaCl₂, thiab nws yog ib hom ntsev calcium. Lo lus "anhydrous" qhia tias nws tsis muaj cov dej molecules. Cov tshuaj no yog hygroscopic, txhais tau tias nws muaj kev sib raug zoo rau dej thiab yooj yim nqus cov dej noo los ntawm ib puag ncig.

Cov qauv tshuaj ntawm anhydrous calcium chloride muaj ib lub calcium (Ca) atom thiab ob lub chlorine (Cl) atoms. Nws yog ib qho dawb, crystalline khoom khov kho ntawm chav tsev kub, tab sis nws cov tsos tuaj yeem sib txawv nyob ntawm qib ntawm kev huv. Ib qho ntawm cov yam ntxwv tseem ceeb ntawm anhydrous calcium chloride yog nws lub peev xwm los tsim cov hydrated sib xyaw nrog cov dej molecules, ua rau nws muaj txiaj ntsig zoo rau ntau yam kev siv.

Cov calcium chloride anhydrous yog tsim los ntawm kev sib xyaw ntawm calcium carbonate (CaCO₃) nrog hydrochloric acid (HCl). Cov tshuaj lom neeg rau cov txheej txheem no yog:

CaCO₃ + 2HCl → CaCl₂ + CO₂ + H₂O

Cov khoom tsim tawm, anhydrous calcium chloride, ces raug ua tib zoo ua kom tshem tawm cov dej uas tseem tshuav. Qhov tsis muaj cov molecule dej ua rau nws yog ib qho tshuaj sib xyaw ua ke nrog ntau yam kev siv tseem ceeb hauv ntau yam lag luam sib txawv.

Ib qho ntawm cov kev siv tseem ceeb ntawm anhydrous calcium chloride yog ua ib qho desiccant lossis tus neeg sawv cev ziab. Vim nws qhov xwm txheej hygroscopic, nws nqus tau cov pa dej los ntawm huab cua, ua rau nws muaj txiaj ntsig zoo hauv kev tiv thaiv kev puas tsuaj rau ntau yam khoom, suav nrog cov khoom ntim khoom, khoom siv hluav taws xob, thiab tshuaj lom neeg.

Ntxiv rau nws lub luag haujlwm ua cov tshuaj desiccant, cov calcium chloride anhydrous kuj siv dav hauv kev siv de-icing. Thaum muab tso rau ntawm cov chaw khov lossis daus, nws txo qhov chaw khov ntawm dej, ua rau cov dej khov thiab daus yaj. Qhov no ua rau nws yog ib qho khoom xyaw feem ntau hauv cov tshuaj ntsev ntawm txoj kev uas siv los txhim kho kev nyab xeeb ntawm txoj kev thaum lub caij ntuj no los ntawm kev tiv thaiv kev tsim dej khov ntawm txoj kev.

Cov calcium chloride uas tsis muaj dej kuj siv tau rau hauv kev lag luam khoom noj ua ib yam khoom ua kom cov txiv hmab txiv ntoo thiab zaub khov kho. Nws pab tswj cov qauv ntawm cov khoom no thaum lub sijhawm ua thiab khaws cia. Ntxiv mus, nws siv rau hauv kev lag luam roj thiab roj av rau kev khawb qhov dej thiab cov kua dej ua tiav, ua ib yam khoom ua kom qhuav kom tiv thaiv kev o ntawm cov av nplaum.

Txawm hais tias nws siv tau ntau yam los xij, cov tshuaj calcium chloride uas tsis muaj dej yuav tsum tau ceev faj, vim nws tuaj yeem ua rau khaus tawv nqaij thiab qhov muag. Kev ceev faj kom zoo, suav nrog kev siv cov khoom siv tiv thaiv xws li hnab looj tes thiab tsom iav, yog qhov tseem ceeb thaum ua haujlwm nrog cov tshuaj no.

Xaus lus, anhydrous calcium chloride yog ib qho tshuaj lom neeg tseem ceeb uas muaj ntau yam kev siv vim nws qhov xwm txheej hygroscopic. Txij li kev tiv thaiv kev puas tsuaj los ntawm cov dej noo mus rau kev ua haujlwm ua tus neeg sawv cev de-icing, cov tshuaj no ua lub luag haujlwm tseem ceeb hauv ntau yam lag luam, qhia txog nws qhov kev ua tau zoo thiab qhov tseem ceeb hauv kev siv niaj hnub no.