Cov txheej txheem:
Video: Dab tsi yog kev siv aldehyde?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Nws yog siv nyob rau hauv tanning, khaws cia, thiab embalming thiab raws li ib tug germicide, fungicide, thiab tshuaj tua kab rau cov nroj tsuag thiab zaub, tab sis nws loj tshaj daim ntawv thov yog nyob rau hauv zus tau tej cov ntaub ntawv polymeric. Cov yas Bakelite yog tsim los ntawm cov tshuaj tiv thaiv ntawm formaldehyde thiab phenol.
Tsis tas li ntawd, kev siv aldehydes thiab ketones yog dab tsi?
Siv & Cov khoom ntawm Ketones & Aldehydes Txog tam sim no koj paub tias formaldehyde yog ib qho aldehyde uas tau siv Nyob rau hauv embalming kua thiab acetone yog a ketone siv nyob rau hauv tus ntsia thawv polish remover. Formaldehyde kuj muaj lwm yam siv , los ntawm tua kab tsuag ntawm cov nroj tsuag mus rau tanning tsiaj hides.
Tsis tas li ntawd, ib qho piv txwv ntawm aldehyde yog dab tsi? Aldehydes tau muab tib lub npe tab sis nrog lub ntsiab lus -ic acid hloov los ntawm - aldehyde . Ob piv txwv yog formaldehyde thiab benzaldehyde. Raws li lwm tus piv txwv , lub npe CH2=CHCHO, uas lub npe IUPAC yog 2-propenal, yog acrolein, lub npe muab los ntawm acrylic acid, niam txiv carboxylic acid.
Ua raws li qhov no hauv kev txiav txim siab, dab tsi yog siv cov ketone?
Kev siv Ketones
- Ketone coj raws li qhov hnyav hnyav rau qee yam ntawm cov yas thiab hluavtaws fibers.
- Acetone ua raws li cov xim pleev xim thiab pleev xim rau ntsia thawv.
- Nws kuj yog siv rau cov hom phiaj tshuaj xws li tshuaj tev txheej txheem nrog rau kev kho pob txuv.
Cov khoom twg muaj aldehydes?
Aldehydes yog ib tsev neeg ntawm reactive, organic tebchaw uas tshwm sim nyob rau hauv ntuj cov khoom xws li cinnamon bark (cinnamaldehyde) thiab vanilla taum (vanillin), thiab kuj tuaj yeem tsim nyob rau hauv lub chaw soj nstuam.
Pom zoo:
Dab tsi yog qhov kev txawj ntse ntawm qhov pom kev siv rau?
Spatial peev xwm los yog visuo-spatial muaj peev xwm yog lub peev xwm to taub, laj thawj, thiab nco ntsoov qhov kev sib raug zoo ntawm cov khoom lossis qhov chaw. Visual-spatial peev xwm yog siv rau txhua hnub siv los ntawm kev taw qhia, kev nkag siab lossis kho cov cuab yeej, kev nkag siab lossis kwv yees qhov deb thiab ntsuas, thiab ua haujlwm ntawm kev ua haujlwm
Dab tsi yog kev siv cov saw hlau nuclear siv rau?
Nuclear chain reaction. Nuclear chain reactions yog cov tshuaj tiv thaiv uas tau txais lub zog nuclear, feem ntau los ntawm nuclear fission. Cov kev cuam tshuam ntawm cov saw hlau no yog qhov muab cov chaw tsim hluav taws xob nuclear nrog lub zog uas tom qab ntawd hloov mus ua hluav taws xob siv los ntawm tib neeg
Dab tsi yog cov kev siv ntawm kev sib koom ua ke?
Ib daim ntawv thov tseem ceeb ntawm kev sib koom ua ke yog lawv siv los ua cov catalysts, uas pab hloov cov tshuaj tiv thaiv kab mob. Qee qhov nyuaj hlau catalysts, piv txwv li, ua lub luag haujlwm tseem ceeb hauv kev tsim cov polyethylene thiab polypropylene
Dab tsi yog qhov teeb meem loj tshaj plaws ntawm kev siv cov kev tshawb fawb txog kev sib raug zoo?
Tej yam tsis zoo los yog kev tshawb fawb txog kev sib raug zoo muaj xws li: a. Lawv tsis tuaj yeem siv los tsim kom muaj kev sib raug zoo-thiab-tshuaj los yog kev coj ntawm kev cuam tshuam
Dab tsi yog qhov sib npaug siv los xam tag nrho cov khoom siv hluav taws xob siv?
Cov mis uas txuas lub zog thiab lub zog yog: Zog = Lub Zog x Sijhawm. Chav tsev ntawm lub zog yog joule, lub zog ntawm lub zog yog watt, thiab chav tsev ntawm lub sijhawm yog qhov thib ob