N-Propyl cawv (NPA), tseem hu ua 1-propanol lossis n-propanol, yog cov kua ntshiab thiab tsis muaj xim nrog cov ntxhiab tsw. Nws yog ib qho yooj yim tshaj plaws thawj cawv thiab ib qho tseem ceeb muaj kuab tshuaj thiab tshuaj nruab nrab. Kab lus no piav qhia txog kev sib raug zoo ntawm 1-propanol thiab NPA, tshuaj xyuas nws cov khoom thiab cov ntawv thov, thiab muab kev qhia txog kev nyab xeeb rau cov neeg siv khoom lag luam.
Puas yog 1-Propanol zoo ib yam li NPA?
Yog. 1-Propanol, n-propanol, thiab n-propyl cawv yog cov npe sib txawv rau tib lub tebchaw, thiab NPA yog cov npe luv rau ib txwm muaj propyl cawv. Lub npe IUPAC yog propan-1-ol, qhia txog pawg hydroxyl txuas rau lub davhlau ya nyob twg carbon ntawm peb-carbon saw. Nws yog ib qho tseem ceeb kom tsis txhob nkim nws nrog isopropanol (propan-2-ol), uas yog cov txheej txheem isomer nrog cov hydroxyl pawg ntawm cov pa roj carbon nruab nrab thiab muaj zog sib txawv.
Ntsiab Physical and Chemical Properties
| Khoom | Tus nqi |
|---|---|
| Cov mis mos molecular | C3H8O |
| CAS nr | 71-23-8 |
| Qhov tshwm sim | Ntshiab, xim tsis muaj kua |
| tsw | Me me, pungent, cawv-zoo li |
| Boiling point | Kwv yees li 97 degree |
| Melting point | Kwv yees li -127 degree |
| Flash point | Qhov kub ntawm 22-23 ° C |
| Qhov ntom | Kwv yees li 0.80 g / cm3 ntawm 20 degree |
| Solubility | Miscible nrog dej, ethanol, ether, thiab feem ntau cov kuab tshuaj organic |
Raws li cov cawv thawj, 1-propanol tau nkag siab oxidized rau propionaldehyde thiab tom qab ntawd mus rau propionic acid, thiab nws tuaj yeem ua esterified los tsim propyl esters. Nws kuj tseem muaj peev xwm ua kom muaj cov protein ntau, uas ua rau nws cov tshuaj tua kab mob thiab ua rau nws muaj txiaj ntsig zoo hauv cov khoom siv tu cev ntawm cawv.
Kev siv tseem ceeb ntawm 1-Propanol
Coatings thiab inks: n-propanol yog tus qauv hnyav hauv cov txheej txheem thiab cov ntawv luam tawm flexographic, qhov uas nws muab kev daws teeb meem zoo thiab tswj tau evaporation.
Kev tsim khoom ntawm lwm yam tshuaj: nws yog siv los ua ib qho nruab nrab hauv kev tsim cov n-propyl acetate thiab propyl amines.
Kev saib xyuas tus kheej thiab cov khoom siv hauv tsev: siv los ua tus neeg sawv cev rho tawm rau paj perfumes, hauv kev npaj tshuaj, thiab hauv kev tsim cov tshuaj detergents thiab polishes.
Lwm daim ntawv thov: cov tshuaj tiv thaiv kab mob, cov nplaum nplaum, cov dej ua kom lub cev qhuav dej, thiab siab - cov kuab tshuaj purity hauv kev lag luam hluav taws xob.
Kev tua kab mob: nws yog ib qho ntawm cov tshuaj siv hauv cawv- cov tshuaj tua kab mob hauv tes, ua los ntawm denaturing microbial proteins.
Toxicity thiab Health Hazards
Thaum siv cov tshuaj propanol, raug rau cov pa ntau dhau yuav ua rau cov tsos mob xws li mob taub hau, tsaug zog, thiab ataxia, nrog rau qhov muag, qhov ntswg, thiab caj pas. Kev noj haus yuav ua rau muaj cov tsos mob hnyav xws li xeev siab, ntuav, mob plab, thiab raws plab, thiab hauv cov mob hnyav coma thiab tuag. Kev sib cuag ntawm daim tawv nqaij ntev yuav ua rau cov tawv nqaij qhuav, tawg. Cov khoom yog flammable, nrog ib tug flash point nyob ze 23 degrees Celsius, yog li vapor tsub kom nyob rau hauv qhov chaw kaw muaj ob qho tib si kev noj qab haus huv thiab hluav taws kub.
Kev ruaj ntseg tuav thiab khaws cia
Thaum siv 1-propanol, yuav tsum tau ua raws li cov txheej txheem kev khiav hauj lwm kom raug, thiab cov cuab yeej tiv thaiv tus kheej yuav tsum tau hnav, nrog rau cov hnab looj tes roj hmab, lub tshuab ua pa thaum muaj pa tawm, tsom iav kev nyab xeeb, thiab tiv thaiv- khaub ncaws ua haujlwm zoo li qub. Xyuas kom meej tias propanol tsis nqus los yog nchuav rau ntawm daim tawv nqaij. Cov neeg ua haujlwm yuav tsum tau txais kev cob qhia kev tshaj lij thiab ua raws li cov txheej txheem kev ua haujlwm. Qhov chaw ua haujlwm yuav tsum raug kaw thiab ua kom tag nrho qhov cua, kom deb ntawm qhov chaw ntawm qhov hluav taws kub thiab cua sov, thiab txwv tsis pub haus luam yeeb. Kev tawg- pov thawj qhov cua yuav tsum tau siv los tiv thaiv cov pa tawm mus rau hauv chaw ua haujlwm huab cua. Thaum tuav thiab sau, saib xyuas kom tsis txhob muaj kev puas tsuaj rau cov ntim thiab ntim khoom, thiab muab cov khoom siv hluav taws xob tsim nyog - cov khoom siv tua hluav taws thiab cov khoom siv thaum muaj xwm ceev. Khaws 1-propanol rau hauv cov thawv kaw nruj nreem nyob rau hauv qhov chaw txias, qhuav, zoo-ventilated, sib cais los ntawm cov oxidizing muaj zog thiab cov kua qaub.
Cov lus nug nquag
Puas yog 1-propanol zoo ib yam li n-propyl cawv?
Yog. 1-Propanol, n-propanol, thiab n-propyl cawv yog txhua lub npe rau tib lub tebchaw, C3H8O, nrog rau pawg hydroxyl ntawm cov pa roj carbon monoxide. NPA yog cov ntawv luv luv rau ib txwm propyl cawv.
Dab tsi yog qhov txawv ntawm 1-propanol thiab isopropanol?
1-Propanol muaj pawg hydroxyl ntawm thawj cov pa roj carbon monoxide, thaum isopropanol (propan-2-ol) muaj nws ntawm cov pa roj carbon thib ob. Lawv yog cov qauv isomers nrog cov khoom sib txawv ntawm lub cev: 1-propanol boils ntawm 97 degree, hos isopropanol boils ntawm txog 82.5 degree, thiab lawv toxicity thiab hnyav yam ntxwv kuj txawv.
Puas yog 1-propanol muaj kev nyab xeeb siv hauv cov tshuaj ntxuav tes?
1-Propanol muaj cov tshuaj tiv thaiv kab mob thiab tshwm sim hauv qee cov qauv kev tu cev, tab sis isopropanol thiab ethanol muaj ntau dua nyob rau hauv cov neeg siv khoom siv tshuaj ntxuav tes vim lawv tsim kev nyab xeeb profile. Txhua yam tshuaj tua kab mob uas muaj cawv yuav tsum ua kom tau raws li qhov xav tau ntawm cov concentration thiab purity ntawm cov kev cai hauv cheeb tsam.
Yuav tsum khaws 1-propanol li cas?
Khaws 1-propanol nyob rau hauv cov thawv kaw nruj nreem nyob rau hauv qhov chaw txias, qhuav, zoo- qhov cua qhov chaw, kom deb ntawm qhov hluav taws kub, muaj zog oxidizers, thiab ncaj qha tshav ntuj. Siv cov khoom siv hauv av, los tiv thaiv zoo li qub thaum hloov nws vim tias cov kua dej yog nplaim taws.
Dab tsi yog qhov kev siv tseem ceeb ntawm 1-propanol hauv kev lag luam?
1-Propanol yog siv los ua cov kuab tshuaj hauv cov tshuaj pleev xim, luam ntawv inks, thiab cov khoom ntxuav; ua cov tshuaj nruab nrab rau n-propyl acetate thiab propyl amines; nyob rau hauv kev saib xyuas tus kheej thiab kev muab tshuaj; thiab hauv kev siv tshuaj tua kab mob, cov nplaum, thiab cov khoom siv hluav taws xob.
