Qhov sib txawv tseem ceeb ntawm cov dej ntxhia thiab cov cawv tsis zoo yog cov dej ntxhia zoo li cov kua ntshiab, qhov uas cov cawv muaj cawv tshwm hauv cov xim violet.
Mineral spirit thiab denatured cawv yog ob yam tseem ceeb ntawm cov kuab tshuaj. Cov no yog cov kuab tshuaj organic, thiab lawv cov khoom xyaw thiab kev siv sib txawv ntawm ib leeg.
Dab tsi yog Mineral Spirits?
Mineral ntsuj plig yog cov kua ntshiab uas tau los ntawm cov roj av, thiab nws yog ib qho tseem ceeb raws li qhov hnyav rau cov xim. Mineral ntsuj plig tseem hu ua dawb ntsuj plig thiab ntxhia turpentine. Mineral dab yog cov kuab tshuaj organic. Thaum xav txog qhov muaj pes tsawg leeg ntawm tus ntsuj plig, nws yog qhov sib xyaw ntawm aliphatic, qhib-chain lossis alicyclic hydrocarbon tebchaw. Cov kua no yog, li no, dej-insoluble.
Cov kev siv ntawm tus ntsuj plig no suav nrog kev siv cov kuab tshuaj tshem tawm, ua cov kuab tshuaj ntxuav, ua cov kuab tshuaj degreasing, ua kuab tshuaj hauv aerosols, xim, ntoo preservatives, thiab lwm yam. raug cais raws li kev chim siab.
Dab tsi yog cawv?
cawv tsis zoo yog cawv muaj txiaj ntsig rau kev xav tau. Cov kua dej no tsis haum rau haus los ntawm qhov sib ntxiv ntawm li 10 feem pua methanol thiab feem ntau kuj muaj qee qhov pyridine thiab violet dye. Yog li ntawd, peb kuj hu nws methylated ntsuj plig. Tus ntsuj plig no muaj ethyl cawv tov nrog lwm yam tshuaj lom neeg; Cov tshuaj xws li methanol, methyl isobutyl ketone, thiab benzene. Txij li nws muaj tshuaj lom heev vim yog ntxiv cov tshuaj lom xws li methanol, cov kua no tsis haum rau tib neeg noj.
Tsis tas li ntawd, cov cawv uas muaj cawv tshwm sim tsis muaj xim, tab sis cov kev daws teeb meem no feem ntau muaj xim los ntawm kev ntxiv aniline kom paub yooj yim. Yog li ntawd, cov tshuaj no feem ntau tshwm nyob rau hauv ib tug violet xim. Lub xub ntiag ntawm ethyl cawv thiab methanol ua rau methylated ntsuj plig lom, tsis tshua muaj hluav taws kub thiab volatile. Peb cov tawv nqaij tuaj yeem nqus tau tus ntsuj plig yooj yim vim muaj cov tshuaj methanol. Yog li ntawd, peb yuav tsum tsis txhob siv cov kua no los ua cov tshuaj tsw qab lossis cov khoom siv da dej. Ntxiv rau cov no, nws muaj ntxhiab tsw phem thiab saj tsis zoo.
Denatured cawv yog ib qho tseem ceeb xws li cov kuab tshuaj, tshuaj ntxuav tes, tshuaj pleev ib ce, thiab roj rau cua sov thiab teeb pom kev zoo, thiab lwm yam. Daim ntawv tsis muaj xim ntawm cov kua no yog qhov tseem ceeb los tua cov kab mob ntawm cov tawv nqaij. Tsis tas li ntawd, peb tuaj yeem siv nws ua cov kuab tshuaj rau cov khoom sib xyaw xws li kua nplaum, siv quav ciab, thiab roj. Raws li nws tsis hnov mob nrog iav, peb kuj tuaj yeem siv los ntxuav qhov rais. Txawm hais tias nws tsis zoo rau tib neeg noj, nws tseem yog ib qho tseem ceeb hauv kev tsim cov tshuaj pleev ib ce vim nws cov tshuaj tua kab mob.
Qhov txawv ntawm Mineral Spirits thiab denatured Cawv yog dab tsi?
Mineral spirit thiab denatured cawv yog ob yam tseem ceeb ntawm cov kuab tshuaj. Qhov sib txawv tseem ceeb ntawm cov dej ntxhia thiab cov dej cawv denatured yog cov dej ntxhia zoo li cov kua ntshiab, thaum cov dej cawv denatured tshwm hauv cov xim violet. Ntxiv mus, cov pob zeb hauv av yog sib xyaw ntawm aliphatic thiab qhib-chain lossis alicyclic hydrocarbon tebchaw thaum denatured cawv yog ethanol hauv kev sib xyaw nrog cov tshuaj xws li methanol, methyl isobutyl ketone, thiab benzene. Ntxiv rau cov no, cov dej ntxhia muaj cov tshuaj toxicity tsawg thaum denatured cawv muaj toxicity siab.
Cov ntawv sau hauv qab no qhia ntau qhov sib txawv ntawm cov dej ntxhia thiab cawv denatured hauv daim ntawv teev npe rau ib sab ntawm kev sib piv.
Summary – Mineral Spirits vs Denatured Alcohol
Mineral spirits thiab denatured cawv yog cov kuab tshuaj organic, thiab lawv cov kev sib xyaw thiab kev siv sib txawv ntawm ib leeg. Qhov sib txawv tseem ceeb ntawm cov dej ntxhia thiab cov dej cawv tsis zoo yog cov dej ntxhia zoo li cov kua ntshiab, qhov uas cov cawv muaj cawv tshwm hauv cov xim violet.
