Carbonate, hydroxide thiab calcium carbonate

Calcium ... ua li cas koj paub txog nws? "Qhov no hlau", - cia li mus teb ntau. Thiab yog dab tsi ntawm calcium tebchaw nyob? Thaum no tus taw tes txhua leej txhua tus yuav pib khawb koj lub taub hau. Yog, lub sib paub txog yav dhau los, thiab hais txog nws tus kheej calcium thiab. Okay, wb tham txog nws tom qab, tab sis rau tam sim no cia saib tsawg kawg peb ntawm nws cov tebchaw - carbonate, hydroxide thiab calcium carbonate.

1. Calcium carbonate

Nws yog ib lub ntsev uas yog tsim los ntawm calcium thiab carbonic acid residue. Cov mis ntawm carbonate - CaCO _3.

zog

Nws muaj hauv daim ntawv ntawm ib tug dawb hmoov uas yog insoluble nrog dej thiab ethyl cawv.

Kev npaj ntawm poov hlau carbonate

Nws yog tsim nyob rau thaum lub sij hawm calcination ntawm calcium oxide. Mus rau yav tas, dej twb ntxiv, thiab ces tom qab lub resulting tov ntawm calcium hydroxide yog nqa tawm carbon dioxide. Cov tshuaj tiv thaiv cov khoom yog cov xav carbonate thiab dej, uas yog yooj yim sib cais los ntawm txhua lwm yam. Thaum nws yog rhuab, nws yuav cleavage khoom uas yuav carbon dioxide thiab quicklime. Thaum xaus ntawm carbonate thiab cov pa roj carbon monoxide (II) yuav npaj nyob rau hauv dej ntawm calcium carbonate. Yog hais tias peb muab cov pa roj carbon thiab calcium carbonate, cov khoom ntawm cov tshuaj tiv thaiv yog calcium carbide thiab cov pa roj carbon monoxide.

daim ntawv thov

Qhov no carbonate - cwj mem av dawb yog hais tias peb tsis tu ncua me ntsis nyob rau hauv cov tsev kawm ntawv thiab lwm yam thawj thiab kawm ntawv qib siab. Tsis tas li ntawd, lawv yog whitewashed qab nthab, pleev xim rau nyob rau hauv lub caij nplooj ntoos hlav ntawm tsob ntoo yeej thiab ua yooj yim av nyob rau hauv horticulture kev lag luam.

2. calcium bicarbonate

Nws yog ib tug ntsev ntawm carbonic acid. Muaj cov mis Ca (HCO _{3) 2.}

zog

Soluble dej, zoo li tag nrho cov hydrocarbons. Txawm li cas los, nws yog rau tej lub sij hawm ua rau nws nyuaj. Nyob rau hauv muaj sia nyob, calcium carbonate thiab lwm yam ntsev, ib co ntawm cov tib radicals muaj nuj nqi ntawm regulators ntawm qhov cov ntshav tshua.

txais tos

Nws yog tau los ntawm reacting carbon dioxide, calcium carbonate thiab dej.

daim ntawv thov

Nws yog pom nyob rau hauv cov dej haus, qhov twg lub concentration tej zaum yuav txawv - los ntawm 30 mus rau 400 mg / l.

3. Calcium hydroxide

Formula - Ca (OH) _2. Qhov no tshuaj yog ib tug muaj zog paus. Nyob rau hauv ntau qhov chaw nws yuav tsum hu mus rau slaked txiv qaub los yog "fluff".

txais tos

Nws yog tsim nyob rau thaum reacted calcium oxide thiab dej.

zog

Nws muaj hauv daim ntawv ntawm ib tug dawb hmoov, me ntsis soluble nyob rau hauv cov dej. Nrog ua kub, qhov kawg suav tus nqi ntawm lub solubility tsawg. Tsis tas li ntawd nws muaj peev xwm mus neutralize acid tsim thaum lub sij hawm cov tshuaj tiv thaiv tus coj calcium ntsev thiab dej. Yog hais tias ntxiv rau nws yaj nyob rau hauv dej, carbon dioxide, yog tau tag nrho cov dej ib yam, tab sis kuj ntawm calcium carbonate. Nrog txuas ntxiv barbotatsii CO ₂ yuav calcium carbonate tsim.

daim ntawv thov

Lawv Whitewashed chav tsev, ntoo ntseej, raws li zoo raws li coated nrog rafters. Los ntawm txhais tau tias ntawm no npaj hydroxide txiv qaub mortar, bleach, tshwj xeeb chiv, txiv qaub pob zeb, thiab txawm tshem tawm cov carbonate hardness ntawm cov dej (softened xeem). Los ntawm no substance nqa causticization poov tshuaj thiab sodium carbonates, Tsau tshuaj rau cov hauv paus hniav canals ntawm cov hniav, thiab kho ntawm daim tawv nqaij ziab ib co cog kab mob. calcium hydroxide, los yog ib tug zaub mov additive E526.

xaus

Tam sim no koj to taub yog vim li cas nyob rau hauv no tsab xov xwm kuv txiav txim siab los piav qhia txog cov peb tshuaj? Tom qab tag nrho, cov tebchaw "pom" txhua lwm yam thaum lub sij hawm lub expansion thiab tau txais daim ntawv ntawm txhua tus ntawm lawv. Muaj ntau ntau lwm yam ncaj tshuaj, tab sis lawv tham lwm lub sij hawm.