Iye yog dab tsi?
A lyeyog alkali hlau hydroxide. Kev lig kev cai, nws tau txais los ntawm kev siv cov dej nag los ntxuav cov ntoo tshauv, uas muaj zog alkaline thiab soluble hauv dej, ntawm lawv cov poov tshuaj hydroxide (KOH), ua dej lye, cov tshuaj caustic yooj yim. Tom qab ntawd cov dej lye yuav siv tau zoo li no, xws li kho cov txiv ntseej ua ntej nqa lawv, lossis evaporated dej kom tawm crystalline lye qab.[1][2]"Lye" feem ntau yog hais txog sodium hydroxide (NaOH), tab sis keeb kwm tau conflated kom suav nrog lwm cov ntaub ntawv alkali, tshwj xeeb tshaj yog potassium hydroxide.
Niaj hnub no, lye yog kev lag luam tsim los ntawm cov txheej txheem membrane cell chloralkali. Nws yog muab nyob rau hauv ntau yam ntaub ntawv xws li flakes, pellets, microbeads, coarse hmoov, los yog ib tug tov. Lye tau ib txwm siv los ua cov khoom tseem ceeb hauv kev ua xab npum.
Lye yog dab tsi?
Lye yog ib qho tshuaj alkaline heev. Feem ntau yog sodium hydroxide, NaOH, tab sis lye tuaj yeem xa mus rau potassium hydroxide, KOH.
Raws li alkali, lye tov yog qhov yooj yim heev. Yog tias koj nco qab koj cov hnub kawm ntawv qib siab chemistry, pH muaj nyob ntawm qhov ntsuas ntawm 0 mus rau 14. Cov kua qaub nyob rau hauv qis qis, thaum lub hauv paus, tseem hu ua cov tshuaj alkaline, nyob rau qhov siab dua.
- Cov kua txiv qaub muaj pH ntawm 2
- Dej muaj pH ntawm 7 (tsis nruab nrab)
- Lye muaj pH ntawm 13
Ob qho tib si muaj zog acids thiab cov hauv paus muaj zog yog caustic thiab tuaj yeem ua rau tib neeg cov tawv nqaij, uas yog vim li cas lye feem ntau to taub yuam kev. Yog tias lye tuaj rau hauv kev sib cuag nrog koj cov tawv nqaij, nws pib hnov mob nrog cov roj saum npoo - qhov kev mob tshwm sim tuaj yeem ua rau kub hnyiab thiab khaus khaus.
Vim li no, ntau tus tuaj yeem xaiv ua haujlwm nrog xab npum yaj, lossis xab npum uas tau npaj ua ntej nrog lye thiab npaj kom muaj cov khoom xyaw ntxiv ntxiv xws li cov roj yam tseem ceeb thiab cov xim.
Dab tsi yog lye siv rau? Cov tshuaj no yog qhov tseem ceeb rau ntau hom kev lag luam, lub npe nrov tshaj plaws yog ua cov xab npum hauv tsev. Lwm tus muaj xws li:
- Deg tshuaj tua kab mob
- Kho cov zaub mov
- Cov txheej txheem tsim khoom
- Kho cov pH ntawm formulations
Vim li cas peb siv lye hauv peb cov xab npum?
Muaj ob peb yam uas peb siv lye hauv peb cov xab npum:
Nws yog txoj hauv kev zoo tshaj plaws los ua xab npum, tso cai rau peb lo nrog cov kev cai feem ntau ua tau.
Kev siv lye zam kev siv cov tshuaj hluavtaws uas tsis tsim nyog rau cov tuam txhab loj tuaj yeem siv uas tuaj yeem ua rau tawv nqaij lossis ua xua.
Vim tias lye tsim cov xab npum nrog cov khoom siv tshuaj ntxuav tes uas muaj zog, nws ua rau lub ntsej muag zoo nkauj ntawm tes xab npum!
Thaum kawg, txij li cov neeg ua haujlwm xuas tes ua ib txwm siv lye thoob plaws hauv keeb kwm, nws ua rau kev nkag siab tias peb yuav xaiv txoj kev no thiab thaum ua peb cov khoom xuas tes ua. "
Yog li, vim li cas peb thiaj siv lye hauv xab npum? Zoo, nws yog ib lo lus nug zoo! Lye los ntawm tej yam ntuj tso xws li av nplaum thiab limestone. Nws yog 100% ntshiab sodium hydroxide, uas tuaj yeem ua rau txhua yam khoom xws li tshuaj ntxuav tes, ntxhua khaub ncaws, lossis khoom siv deodorant. Qhov laj thawj tseem ceeb ntawm cov tshuaj soapmakers siv lye hauv lawv cov xab npum yog tias nws muaj ntau yam txiaj ntsig ntawm lwm cov khoom xyaw, xws li ntsev los yog cov tshuaj hluavtaws uas muaj nyob hauv ntau cov xab npum uas tsis yog ntuj tsim niaj hnub no.
