Ua ntej koj yuav tsum txiav txim siab seb cov pa luam yeeb yog dab tsi. Kev tshawb fawb, nws yog aerosol. Nws tuaj yeem ua kua lossis kua. Aerosols muaj lawv tus kheej cov khoom. Piv txwv li, yog tias cov pa luam yeeb loj dhau lawm, ces nws cov khoom sib xyaw ua ke (cov txheej txheem no hu ua flocculation) thiab nws sai sai. Thiab lawv tuaj yeem nce qhov loj me nyob ntawm seb muaj tib lub nqi hluav taws xob rau lawv lossis qhov tsis muaj zaj duab xis ntawm cov pa roj adsorbed. Raws li lawv muaj pes tsawg leeg, cov kev npaj sib tov tau muab faib ua ob pawg loj. Ib tug ntawm lawv muaj nyob rau hauv nws muaj pes tsawg leeg ib tug npaj-ua pa luam yeeb tus neeg sawv cev, thiab nyob rau hauv lub thib ob, cov pa luam yeeb-forming tshuaj yog tau nyob rau hauv lub combustion txheej txheem. Tab sis txij li thaum peb txoj hauj lwm yog los kawm yuav ua li cas ua ib lub foob pob hluav taws nrog peb tus kheej tes, yog li ntawd, peb yuav tsum siv cov reagents uas muaj, los yog lawv feem ntau yooj yim kom tau.
Ua ntej tshaj plaws, cia peb daws cov kev xaiv yooj yim uas tso cai rau koj kom tau txais cov pa luam yeeb dawb thiab dub. Ib txoj hauv kev yooj yim heev los tsim cov pa luam yeeb dawb yog nrog cov pa luam yeeb ammonium nitrate. Nws yog ib qho tsim nyog los ntub ob lossis peb daim ntawv xov xwm hauv cov tshuaj muaj zog ntawm ammonium nitrate, qhuav lawv thiab yob lawv mus rau hauv ib qho nruj.handset.
Lub tog raj kheej tshwm sim yuav tsum tau qhwv hauv ob peb txheej ntawm cov ntawv ci thiab cov wick ntxig, uas tuaj yeem ua los ntawm tib daim ntawv. Tom qab ignition, cov khoom yuav sai sai hlawv tawm, emitting ib tug txaus tus nqi ntawm cov pa luam yeeb dawb. Txhawm rau ua-nws-koj tus kheej lub foob pob hluav taws kom muab cov pa luam yeeb ntau dua thiab kub hnyiab, nws yog qhov tsim nyog los ncuav ammonium chloride (ammonia) thiab ci dej qab zib rau hauv ib txheej ntawm cov khaubncaws sab nraud povtseg ntawm cov ntawv xov xwm qhuav. Tus nqi ntawm additives yog paub empirically. Thiab lub luag hauj lwm ntawm cov additives no yog raws li nram no. Thaum rhuab, dej qab zib yuav tso carbon dioxide thiab qeeb combustion, thiab ammonia sublimes yooj yim heev, thiab tom qab nws nkag mus rau hauv cov huab cua, nws condenses thiab hloov mus rau hauv cov pa luam yeeb dawb.
Lub foob pob hluav taws ua rau koj tus kheej kuj tseem tsim cov pa luam yeeb dub. Nyob rau hauv cov ntaub ntawv no, cov pa luam yeeb-tsim tshuaj yuav tsim los ntawm combustion. Aromatic hydrocarbons yog qhov zoo tshaj plaws rau kev tsim cov pa luam yeeb dub. Txhawm rau kom tau txais cov tshuaj muaj pes tsawg leeg, poov tshuaj nitrate, naphthalene thiab charcoal hauv qhov sib piv ntawm 2: 2: 1 yuav tsum. Tag nrho cov no yog tov kom huv si, lub resulting hmoov yog poured rau hauv ib lub tin thiab ib tug wick yog muab tso rau. Thaum combustion, tsis tiav oxidation ntawm naphthalene yuav tshwm sim. Lub resulting soot yuav ya tawm ntawm lub qhov nyob rau hauv daim ntawv ntawm cov pa luam yeeb dub. Yog hais tias qhov combustion ceev heev, tab sis ntau naphthalene yuav tsum tau ntxiv rau cov muaj pes tsawg leeg, thiab yog hais tias cov pa luam yeeb tsis dub, tab sis grey, ces tus nqi ntawm charcoal yuav tsum tau nce.
Txawm li cas los xij, lub foob pob pa luam yeeb tau piav qhia tuaj yeem siv tau kom tau txais cov pa luam yeeb xim. Nws tsis zoo li tias nws yuav muaj peev xwm ua kom cov xim pleev xim rau xim pleev xim nrog koj tus kheej tes. Tab sis muaj ib txoj kev yooj yim heev tawm. Koj tuaj yeem siv cov dyes uas nyob ntawm tes. Piv txwv li, kom tau txais cov pa luam yeeb xiav, indigo lossis, qhov phem tshaj, xiav yog qhov tsim nyog. Cov muaj pes tsawg leeg yog raws li nram no: poov tshuaj nitrate, mis nyuj qab zib thiab indigo nyob rau hauv ib tug ratio ntawm 1.5: 1: 2. Ua tau zoo ib yam li yav tag los.
Feem ntau, txoj kev no yog qhov nthuav heev vim tias muaj thaj chaw loj rau kev sim kom tau txais cov pa luam yeeb ntawm cov xim sib txawv. Cov xim toners rau cov tshuab luam ntawv laser yog qhov zoo rau cov pa luam yeeb xim, thiab xim zaub mov tseem zoo dua. Hauv kev xyaum, cov pa luam yeeb hauv qab no tau ua pov thawj nws tus kheej zoo.
Nyob hauv tsev, koj tuaj yeem nchuav cov nplooj ntawv xov xwm nrog turmeric hmoov los yog ncuav ob peb pob ntawv ntawm Yupi. Lub ntim ntawm cov khoom twb tau piav qhia.
Nyob rau hauv xaus, daim ntawv qhia hauv qab no tuaj yeem siv los ua lus tso dag. Noj ib ntsiav tshuaj ntawm analgin thiab hydroperite. Txiav lawv thiab sib tov cov hmoov. Tus nqi ntawm cov pa luam yeeb pib tsim nyob ntawm qib ntawm crushing ntawm cov ntsiav tshuaj.
