Crystal txoj kev loj hlob nyob rau hauv tsev

Yog hais tias koj txaus siab rau ib tug ntau yam ntawm thwmsim nyob rau hauv lub tshav pob ntawm Science News for KIDS, ces raws li ib tug hobby, peb xav kom koj sim loj hlob muaju hauv tsev. Nws yog heev nthuav thaum tawm ntawm tsis muaj dab tsi nyob rau hauv pem hauv ntej ntawm koj loj hlob txawv crystalline splendor, tsab perfection ntawm daim ntawv thiab xim tswvyim. Koj cia li yuav tsum tau paub hais tias loj hlob muaju hauv tsev yuav tsum tau ib tug ntau lub sij hawm, siv lead ua muaj txheej txheem yog tsis ib txwm ceev ceev. Tab sis cov tshwm sim yog hais tias lub qeeb ceev txhais tau tias cov tsim ntawm loj siv lead ua, thiab vice versa tus ceev txoj kev, tus me tus muaju tsim.

Loj hlob ib tug siv lead ua nyob rau hauv lub tsev yuav ua tau ib tug ntau yam ntawm txoj kev. Cov lawv: kub txos neeg sawv cev, evaporation ntawm cov tshaj kua tshuaj. Tsis yuav unfounded, thiab muab tswv yim pab tswv yim rau, yuav ua li cas kom loj hlob ib tug siv lead ua nyob rau hauv tsev, pib nrog ib tug heev yooj yim teeb meem, nrog ntsev. Yog li ntawd peb coj ib lub khob, hliv dej rau hauv nws thiab teem nyob rau hauv ib tug lub lauj kaub ntawm kais dej rhuab mus txog 50-60 degrees. Ncuav mus rau hauv ib khob ntsev thiab tawm rau 5 feeb yaj nws. Xav txog yuav ua li cas koj yuav tswj qhov kub ntawm cov dej nyob rau hauv lub lauj kaub, vim hais tias nws yog tsim nyog hais tias nws yeej ib txwm tau sov so. Yog li ntawd koj yuav ua li ob peb lub sij hawm kom txog thaum lub ntsev lawm dissolving. 100 grams dej yog yuav tsum tau tsawg kawg yog 35 grams ntsev. Raws li ib tug tshwm sim, koj yuav tau ib nyeem tov, uas yog yuav tsum tau poured mus rau hauv ib pob tshab tais, ua kom paub tseeb tias nws tsis tau txais lub dhau heev lawm hais thiab brine. Tam sim no nrhiav tau ib co ntau dua los yog tsawg loj ntsev siv lead ua, khi nws thiab dai cov xov li ntawd. nws tsis kov cov phab ntsa hauv lub khob. Thiab tag nrho cov muaj tau tos ib tug ob peb hnub. Thaum siv lead ua tsis tau lub me me uas koj xav tias yuav. Rov qab txoj kev ib tug ntau lub sij hawm, koj muaj peev xwm ua rau kom qhov luaj li cas ntawm cov muaju rau infinity.

Qhov no txoj kev koj yuav loj hlob muaju tom tsev los ntawm tej ntsev. Ntawm tooj liab sulfate yuav tsum tau, thiab cov xiav thiab liab muaju. Ib yam li ntawd raws li nyob rau hauv lub saum toj no tus txheej txheem, koj yuav tau ib nyeem tov ntawm no ntsev. Tsuas yog tus kais dej yog tsis haum. Peb muaj kev txhawj txog yuav ua li cas tau qhov chaw distilled vim hais tias ntshiab tooj liab sulfate tshuaj nkawd tsis tau.

Ib tug liab muaju hauv tsev tau npaj raws li nram no. Koj yuav tsum tau tooj liab sulfate, sodium tshuaj dawb, blotting ntawv, txiav tawm ib tug seem ntawm lub thawv thiab cov ib txwm nyees khawm. Tej siv lead ua kev loj hlob nyob rau hauv tsev pib nrog lub fact tias muab tso rau ib tug me ntsis ntawm tooj liab sulfate uniformly nyob rau hauv qab ntawm cov iav, nchuav ntsev rau sab saum toj thiab cov sib tov yog them nrog ib lub voj voog ntawm blotting ntawv uas yog muab tso rau cov nyees khawm los yog steel phaj. Rau tag nrho cov txheem tsim nyog mus ncuav rau hauv lub brim ntawm nyeem sodium tshuaj dawb tov npaj ua ntej raws li tau piav saum toj no. Muab lub tais nyob qhov twg nws tsis tau tsiv mus rau txog ib lub lim tiam. Thiab ces koj yuav pom yuav ua li cas kom loj hlob zoo nkauj liab iglougolnye muaju.

Crystal txoj kev loj hlob nyob rau hauv tsev yog tau thiab nyob rau hauv ib tug multi-kob daim ntawv. Qhov no yuav tsum tau alum, uas yog npaj los ntawm roj nyeem cov ntsiab, nyob rau hauv uas lub ntau yam muaju yog zus. Thiab ces lawv nyob rau hauv lem yog kis los ntawm ib tug daws mus rau lwm tus. Qhov no twb ntau txheej txheem, rau cov uas ua tau zoo koj yuav tsum muaj ib co kev txawj ntse nyob rau hauv lub teb ntawm tshuaj science. Firstly, alum yog yaj nyob rau hauv ib tug ncaj high kub. Secondly, thaum muab cia rau hauv huab cua, lawv muaj peev xwm qhuav. Yog li ntawd, lub txiaj ntsim ntawm loj hlob xws muaju tej zaum yuav tsis zoo. Yog li ntawd hais tias xws li kev yuav tsum tau tsuas mus nyob rau hauv cov kev tshwm sim hais tias koj tseem tsis tau ntshai kev chim siab.