denatured cawv feem ntau siv hauv kev lag luam thiab lub neej txhua hnub. Cov kua no muaj ib qho tsis kaj siab tsw thiab saj. Tseem muaj cov tshuaj lom ntau los ntawm kev siv cawv denatured ua cawv.
Kev sib xyaw ntawm denatured cawv
Dab tsi yog cawv? Txhais los ntawm Latin, nws lub npe txhais tau tias "tsis muaj ntuj tsim." Nws yog cov kua dej xiav-ntsuab nrog ib qho tsis kaj siab tsw. denatured cawv muaj ethyl cawv (yog lub hauv paus), kerosene, isopropanol thiab methanol. Tsis tas li ntawd, nws muaj pes tsawg leeg kuj tseem muaj xws li roj av, pyridine, qee yam xim thiab lwm yam khoom siv. Cov muaj pes tsawg leeg nyob ntawm lub hom phiaj ntawm cov kua thiab tej zaum yuav txawv. Txhua lub teb chaws tau teeb tsa nws txoj cai lij choj ntawm cov cawv muaj cawv, nyob ntawm daim ntawv thov.
Feem ntau, ethyl cawv yog siv los ua cov cawv cawv uas tsis tau raug kho (purified). Xws li cawv muaj cov roj fusel thiab methanol, uas yog tshuaj lom heev. Tag nrho lwm cov additives kuj raug txwv rau kev siv sab hauv. Yog li ntawd, ethyl cawv uaunsightly raws li ib tug haus dej haus: ib tug unpleasant tsw, saj thiab xim tshwm. Nws yog tsis yooj yim sua kom cais cov cawv ntshiab los ntawm denatured cawv los ntawm cov tshuaj lom neeg yooj yim hauv lub neej txhua hnub (khov, distillation, filtration).
Metal properties
Tom qab hloov los ntawm ethyl cawv rau hauv cawv denatured nrog kev pab los ntawm ntau yam teeb meem impurities, cov kua ua kua yuav lom thiab txaus ntshai heev rau tib neeg. Txawm tias nqus tau pa ntawm cov kua dej no muaj tshuaj lom rau lub cev ntawm tib neeg thiab tsiaj txhu. Yog li, lo lus nug ntawm dab tsi denatured cawv tuaj yeem teb tau yam nyab xeeb: nws yog tshuaj lom.
Cov tsos mob ntawm kev haus cawv tsis zoo:
- nausea;
- ntua;
- plab hnyuv;
- kev tsis pom kev.
Hauv qhov xwm txheej hnyav tshwm sim:
- ua pa nyuaj;
- pulse sai sai;
- ua tiav tsis pom kev.
Yuav kom pom qhov sib txawv ntawm cov cawv cawv los ntawm cov cawv ntshiab, cov tshuaj pleev xim ntxiv. Cov lus qhia uas twb muaj lawm qhia txog txoj hauv kev rau denaturing cawv rau kev npaj cov khoom hauv ntau qhov kev lag luam: xim thiab kua roj vanish, perfumery thiab lwm yam.
Cov cuab yeej ntawm denatured cawv kom yaj cov kua roj vanish thiab xim yog siv los tsim cov xim thiab cov kua roj vanish. Cov khoom muaj txiaj ntsig zoo ntawm kev haus cawv kuj suav nrog kev muaj peev xwm degrease qhov chaw paug, yaj ntau yam resins, varnishes, xim.
Kev siv cawv denatured hauv kev lag luam
Scopedenatured yog qhov dav heev. Nws yog siv hauv kev tsim khoom:
- paint khoom;
- tshuaj ntxuav tes;
- tshuaj tshuaj;
- roj additives (kom nce octane tus naj npawb ntawm cov cav sib xyaw nrog).
Nyob hauv qee qhov kev lag luam, cov cawv no yog siv rau kev tshawb fawb hauv chaw ua haujlwm kub hnyiab.
Nws yuav tsum tau muab sau tseg tias rau qee qhov kev xav tau, kev ua kom tiav ntawm ethyl cawv tsis raug tso cai.
Piv txwv li, thaum siv denatured cawv los ua tshuaj tua kab mob, tsuas yog formalin lossis thymol ntxiv rau ethyl cawv. Rau kev npaj vaj, zoological npaj, formalin, ntoo cawv yog ntxiv. Cov additives tshwj xeeb kuj tau tsim los rau cov denaturation ntawm tshuaj thiab tshuaj npaj (chloroform, iodoform, esters, tannin, thiab lwm yam).
Rau kev tsim cov khoom lag luam perfumery, bitrex feem ntau yog siv los ua ib qho ntxiv rau ethyl cawv. Cov tshuaj no tsis txaus ntshai rau kev noj qab haus huv, tab sis muaj ib qho iab saj. Bitterness ua rau cawv tsis zoo rau kev noj thiab tsis txaus ntshai txawm tias nws nkag mus rau hauv lub cev. Ntau lub npe nrov ntawm cov naj hoom thiab cov dej tso rau hauv chav dej muaj cov cawv tsis zoo.
Kev siv cawv denatured hauv lub neej txhua hnub thiab tshuaj ib txwm
Denatured cawv yog siv rau hauv kev sib ntaus tawm tsam kab ua tshuaj tiv thaiv vim nws muaj ntxhiab tsw tsw zoo (kab, kab laum). Siv tauNws yog siv nyob rau hauv lub neej txhua hnub thiab nyob rau hauv veterinary tshuaj tua kab mob ntawm cov khoom, nroj tsuag thiab tsiaj.
Ntxiv rau, nws yog siv hauv lub neej txhua hnub rau:
- tshem tawm ntau yam stains;
- taws hlawv;
- qhov cua sov;
- windows khov tiv thaiv;
- ntxuav thiab ntxuav qhov chaw tsis huv.
Dab tsi yog cawv? Nws kuj tuaj yeem raug ntaus nqi rau cov tshuaj. Lwm cov tshuaj qee zaum siv cawv denatured. Feem ntau, nws muaj nyob rau hauv cov tshuaj pleev thiab compresses nyob rau hauv kev kho mob ntawm cov kab mob txuam nrog cov pob qij txha. Nws kuj yog siv los ua tshuaj pleev qhov txhab.
Los ntawm cov lus saum toj no, peb tuaj yeem xaus tias cawv yog dab tsi. denatured cawv yog cov kua ua los ntawm ethyl cawv nrog ntxiv ntawm ntau yam tsis yog khoom noj additives. Nws tuaj yeem ua rau mob hnyav yog tias nws nkag mus rau tib neeg lub cev, tab sis nws kuj kho tau qee yam kab mob. denatured cawv yog flammable. Nws yuav tsum tau muab khaws cia rau hauv lub thawv kaw kom nruj raws li cov kev cai tua hluav taws thiab siv nruj me ntsis rau nws lub hom phiaj.
