Tooj liab yog cov hlau muaj txiaj ntsig nrog ntau yam siv. Vim tias nws xav tau ntau thiab ntau yam, ntau yam uas tau siv los ua cov tooj liab tau tam sim no tau ua los ntawm lwm cov ntaub ntawv thiab yooj yim plated (lossis npog) nrog tooj liab nyob sab nraud. Cov tooj liab plating no tuaj yeem tshem tawm los ntawm kev yaj tooj liab nrog cov tshuaj tshwj xeeb, lossis los ntawm kev sib tsoo nws tawm. Tsuas yog ceev faj kom tsis txhob puas cov khoom hauv qab.
Cov kauj ruam
Txoj Kev 1 ntawm 3: Kev Tiav Tooj nrog Cov Khoom Siv Hauv Tsev
Kauj Ruam 1. Ncuav hydrogen peroxide rau hauv iav
Hydrogen peroxide yuav pab oxidize tooj liab. Hmoov tsis zoo, nws tuaj yeem cuam tshuam zoo nkauj sai sai, ua rau koj cov kev daws teeb meem tsis muaj zog. Pib tawm nrog kwv yees li 30 mL ntawm hydrogen peroxide hauv lub raj mis.
- Koj tuaj yeem ntxiv hydrogen peroxide ntau ntxiv kom cov tshuaj tiv thaiv mus ntev dua. Qhov no yuav tsim nyog yog tias koj muaj cov khoom siv ntau (ntau dua li qhov nyiaj npib).
- Koj yuav tsum siv cov tshuaj 35% hydrogen peroxide lossis muaj zog dua.
Kauj Ruam 2. Ntxiv vinegar
Ntxiv ob zaug ntau npaum li cov kua txiv hmab txiv ntoo zoo li koj tau ua hydrogen peroxide. Cov kua txiv hmab txiv ntoo yuav pab ua kom cov kua qaub ntau dua. Qhov no yuav ua rau tooj liab ions uas tau tsim los ntawm hydrogen peroxide oxidation.
Piv txwv li, yog tias koj ntxiv 30 mL ntawm hydrogen peroxide, koj yuav xav tau 60 mL ntawm kua txiv
Kauj Ruam 3. Submerge cov khoom
Thaum koj submerge cov khoom, koj yuav pib pom npuas. Qhov no yog qhov qhia tias qhov tshuaj tiv thaiv mus. Raws li cov tshuaj tiv thaiv ua tiav, koj yuav pib pom qhov kev daws teeb meem xiav.
- Nco ntsoov tias qhov tshuaj tiv thaiv no siv sijhawm ntev, thiab nws tsis muaj txiaj ntsig tshwj xeeb. Yog tias koj muaj cov khoom loj lossis txheej tuab ntawm tooj liab, yuav tsum siv lwm txoj hauv kev. Tsuas yog tshem cov tooj liab los ntawm ib npib nws yuav siv sijhawm teev lossis ntau hnub.
- Tshem tawm cov khoom thaum koj ua tiav thiab hliv cov tshuaj tov rau hauv lub raj mis sau npe. Kev daws teeb meem yuav tsum tau muab xa mus rau tus kws tshaj lij pov tseg pov tseg.
Txoj Kev 2 ntawm 3: Ionizing Copper nrog Cov Tshuaj Khov Zoo
Kauj Ruam 1. Muab cov khoom tso rau hauv lub khob iav
Ntxiv koj cov khoom siv tooj liab rau hauv lub khob iav. Yog tias nws loj dhau kom haum rau hauv lub beaker, siv lub khob iav lossis tais. Muab lub khob iav tso rau sab nraud lossis hauv qab lub fume hood ua ntej mus.
Plastics thiab ntau yam hlau yuav yaj nrog siv txoj hauv kev no. Tsuas yog tso cov khoom uas tau ua los ntawm kub, platinum, hlau, npib tsib xee, txhuas, chromium, lossis cobalt hauv lub beaker
Kauj Ruam 2. Ntxiv cov nitric acid rau lub beaker
Ncuav cov concentrated nitric acid rau hauv lub beaker. Koj yuav tsum hliv kom txaus los npog cov khoom siv uas koj tab tom ntxuav. Koj yuav pom daim pa roj tsaus rau saum cov nplaim dej. Qhov no yog cov pa roj carbon dioxide.
- Nitric acid yog cov kua qaub muaj zog. Hnav hnab looj tes thiab tsom iav. Tsis txhob muab cov kua qaub rau ntawm koj cov tawv nqaij lossis hauv koj lub qhov muag. Tsis txhob nqus cov pa tawm ntawm cov kua qaub, thiab tsis txhob nqus nws.
- Nitrogen dioxide yog tshuaj lom. Qhov no yuav tsum tau ua nyob rau hauv lub fume hood lossis lwm qhov chaw muaj cua nkag tau zoo. Tsis txhob nqus cov pa nitrogen.
- Yog tias koj tau txais cov kua qaub rau ntawm koj cov tawv nqaij lossis qhov muag, ntxuav nrog dej li 15 feeb.
Kauj Ruam 3. Ncuav dej
Thaum cov tshuaj tiv thaiv tau ua tiav, nchuav dej rau hauv lub khob dej lossis lub hwj. Qhov no yuav dilute tooj liab ions thiab tsim lub teeb xiav xim. Nws tseem yuav ua kom muaj kua qaub ntau dua thiab tso cai rau koj khaws cov khoom seem.
- Koj yuav tsum siv tus nplaig tshem cov khoom. Tsis txhob muab koj txhais tes los daws!
- Cov tshuaj tiv thaiv tau ua tiav thaum tsis muaj cov pa ntxiv lawm.
Txoj Kev 3 ntawm 3: Sib Tsoo Tooj
Kauj Ruam 1. Xaiv cov cuab yeej sib tsoo
Nyob ntawm qhov loj ntawm cov khoom koj npaj yuav zom, koj tuaj yeem siv lub log sib tsoo, lub tshuab ziab khaub ncaws, lossis txawm tias cov xuab zeb blaster. Lub tshuab ziab khaub ncaws yog qhov zoo tshaj plaws rau kev txhuam me me kom tawg los ntawm txheej txheej tooj liab. Lub log sib tsoo yuav muaj kev txhoj puab heev thiab pab koj txiav los ntawm txheej tuab ntawm tooj liab, tab sis cov xuab zeb yuav zoo rau tshem tooj liab los ntawm cov khoom loj.
Koj yuav tsum xav txog cov khoom hauv qab tooj liab. Yog tias koj tab tom cuam tshuam nrog cov hlau mos lossis yas, kev sib tsoo lub log yuav ua rau muaj kev puas tsuaj ntau dua li cov xuab zeb lossis cov xuab zeb blaster
Kauj Ruam 2. Zeb tooj liab los ntawm qhov chaw
Kev sib tsoo tshem tawm cov txheej tooj liab tsis siv tshuaj. Qhov no txhais tau tias koj yuav zoo li yuav tsum tau nyuab nyuab heev nrog lub sander lossis sib tsoo log. Koj yuav tsum tau hnav tsom iav thiab lub tshuab ua pa.
- Kev nqus cov quav hniav hlau tuaj yeem ua rau txaus ntshai.
- Cov hlau txhuam hniav tuaj yeem txiav koj lub qhov muag yog tias lawv nkag rau hauv.
Kauj Ruam 3. Muab cov khoom tso rau hauv qab
Thaum koj tau tshem cov txheej tooj liab, koj yuav pom cov kab zauv thiab cov cim tseg ntawm cov khoom hauv qab. Qhov no tshwm sim vim tias thaum koj tsoo dhau txheej tooj liab, koj pib zom cov nplaim ntawm cov khoom. Tshem tawm cov nplaim ntawm cov khoom los ntawm kev txhuam cov grooves nrog cov ntawv xuab zeb zoo dua, thiab so qhov huv.
Piv txwv li, koj tuaj yeem siv 180 cov ntawv xuab zeb kom tshem tawm qhov khawb thawj zaug, thiab txav mus rau 300 cov ntawv xuab zeb los txhuam cov khoom kom du ntau dua (cov qib siab dua ua rau khawb zoo dua)
Kauj Ruam 4. Txhuam cov hlau hauv qab
Yog tias koj tab tom tshem tooj liab los ntawm lwm cov hlau, koj yuav xav tau txhuam cov hlau tom qab ntawd. Feem ntau cov hlau muaj cov xim tshwj xeeb uas koj tuaj yeem yuav tau ua lag luam, xws li txhuas txhuam lossis chrome txhuam. Siv cov tshuaj txhuam hniav raws li cov chaw tsim khoom qhia kom ua rau koj cov hlau ci thiab tiv thaiv nws los ntawm ib puag ncig.
Lub tswv yim
- Ua qhov no raws li kev saib xyuas ntawm kws tshuaj, yog ua tau.
- Ceev faj txog kev tshem cov tooj liab yuav cuam tshuam rau cov khoom hauv qab (piv txwv li nitric acid yuav ua rau cov khoom tawg tag).
Lus ceeb toom
- Nitric acid yog corrosive heev.
- Nitrogen dioxide roj yog tshuaj lom.
- Tsis txhob haus ib yam ntawm cov reactants.
- Hnav cov hnab looj tes thiab tsom iav rau txhua txoj hauv kev.
