Thaum xub thawj siab ib muag, cov txheej txheem ntawm cov xim paj yuav zoo li yooj yim dua, tab sis hauv xwm muaj ntau yam xim thiab lub suab nrov uas tshwm sim vim kev cuam tshuam nyuaj ntawm cov xim hauv cov nroj tsuag nrog ib puag ncig. Xim nrog tones kuj yog nyob ntawm seb yuav ua li cas muaj xim tso rau hauv cov nroj tsuag ntaub. Yog li, hauv txoj hauv kev twg koj tuaj yeem tau txais paj ntawm ib qho xim.
Cov Lus Qhia
Kauj ruam 1
Rau cov paj txiav rau lub pob paj, koj tuaj yeem hloov cov xim ntuj ntawm cov nplaim paj. Sim cov paj dawb ntawm lub dahlia lossis rose, ua ntej ntaws rau hauv kev daws fuchsin thiab tom qab ntawd hauv potash. Koj yuav pom tias cov nplaim paj tau dhau los ua lub ntsej muag xiav. Yuav kom tau txais cov paj xiav xiav, uas tsis muaj nyob hauv cov xwm, cov qauv no yog siv. Koj tuaj yeem sim nrog cov dawb hyacinths, gladioli, lossis tulips. Tab sis cov paj dawb zuj zus ntawm lub rose tuaj yeem ua kom ci ci xiav los ntawm kev ywg cov av nyob ib ncig ntawm tsob ntoo nrog cobalt acid.
Kauj ruam 2
Ib tug xov tooj ntawm cov ntaub ntawv tau khaws cia tias tus kws sau paj huam German thiab tus kws tshawb fawb Goethe loj hlob paj liab hauv tsev cog khoom ua los ntawm tsom iav xiav. Nws tau lees tias nws tsim cov paj bluish. Tam sim no, cov Japanese tau siv hom no thiab tau txais cov paj xiav.
Kauj ruam 3
Yuav ua li cas yog tias koj xav ua ib lub paj dawb tawm ntawm liab rose? Nws paub tias anthocyanin zoo li yog qhov txawv txav thaum raug rau cov leej faj dioxide. Yog li ntawd, nqa ib lub paj liab sawv thiab muab nws tso rau hauv ib qho hlab ntaws nrog ib qho ntawm smoldering leej faj tua muaj. Tom qab ob peb feeb, koj yuav pom tias cov nplaim paj tau dhau mus ua dawb. Los ntawm txoj kev, tom qab qee, es ntev mus, lub paj hauv pa yuav rov ua dua. Qhov kev sim no tuaj yeem ua tiav ib yam li asters, violets, gladioli, thiab lwm yam paj uas muaj anthocyanins.
Kauj ruam 4
Raus lawv hauv cov tshuaj sulfuric acid kom pleev xim cov xim paj yeeb hauv xim liab. Yog lawm, txoj kev daws teeb meem yuav tsum tsis muaj zog, txwv tsis pub cov paj yuav puas.
Kauj ruam 5
Paj nrog ntsuab nplaim zoo saib tsis meej, tab sis nws tsim nyog sim pleev xim rau lawv hauv cov xim no, tsawg kawg rau qhov tawm ntawm kev sim. Tuav ib co paj xiav (piv txwv, hav iav tsis nco-kuv-tsis) dhau ntawm cov pa luam yeeb ntawm cov luam yeeb lossis tus luam yeeb. Lub paj xiav yuav tig ntsuab yuav luag tam sim ntawd. Yog vim li cas rau qhov no yog ammonium carbonate, uas pom nyob hauv cov pa luam yeeb thiab muaj kev tsis haum alkaline. Ammonium carbonate nkag mus rau cov ntaub so ntswg ntawm lub paj, tom qab ntawd nws hloov xiav rau ntsuab.
