Xov xwm

H-NMR ntawm 1-N-Boc-4-(Phenylamino) Piperidine CAS 125541-22-2 1) Thov tsis txhob txhawj txog qhov zoo ntawm peb cov khoom, peb tuaj yeem ua kom paub tseeb tias cov khoom no yog HIGH purity. 2) Peb qhov kev pabcuam yog qhov xav txog thiab koj tuaj yeem tiv tauj peb txhua lub sijhawm ...

Hexagonal boron nitride (HBN) hmoov muaj cov thermal conductivity zoo, cov yam ntxwv ntawm ntug, kev ruaj khov tshuaj lom neeg thiab lubricity. Nws qhov kub tiv thaiv oxidation tshaj 2000 ° C, thiab nws kuj muaj lubricity zoo ntawm qhov kub siab. Nws feem ntau yog siv ...

Monomer boron muaj ntau yam kev siv hauv cov teb hauv qab no 1. Lub neutron absorber thiab neutron counter ntawm nuclear reactors. Boron oxide 2. Catalyst rau tshuaj, kev lag luam ceramic thiab kev tsim hluav taws xob. 3. Lub ignition ntawm lub raj pilot hauv ...

Nicotine, feem ntau hu ua nicotine, yog ib feem ntawm pyridine alkaloid thiab muaj cov nyhuv loj heev rau tib neeg. Thaum haus luam yeeb, nws tuaj yeem nqus tau cov nicotine kom raug, tuaj yeem ua rau lub siab zoo siab, tshem tawm kev qaug zog, ua rau kev xav ntau ntxiv ...

Cov ntsev nicotine txawv ntawm cov kua nicotine uas peb feem ntau siv. Nws yog ib qho siv lead ua los ntawm kev sib xyaw ntawm cov nicotine dawb thiab cov organic acid. Cov siv lead no tshem tawm cov khoom tsis huv hauv cov kua nicotine, tshem tawm lwm yam khoom sib xyaw...

Hais txog cov luam yeeb, thawj qhov kev xav yuav yog nicotine, ib qho ntawm nws cov khoom xyaw. Ntxiv mus, qee tus neeg sib piv nicotine nrog luam yeeb sib cav tias "kev haus luam yeeb ua rau muaj kev phom sij rau kev noj qab haus huv" vim yog nicotine hauv cov luam yeeb "Nicotine yog lom heev ...

Muaj ntau tus neeg tam sim no tau them sai sai rau fullerenes. Fullerene yog hu ua "Nobel rejuvenation factor." Nws lub peev xwm antioxidant yog 172 npaug ntau dua li ntawm vitamin C. Nws tau lees paub tias yog thawj lub ntiaj teb ua haujlwm siab ...

Fullerene C60 yog pom tias yog qhov thib peb allotrope ntawm cov pa roj carbon elemental. nws yog cov kab ntawm cov pa roj carbon kaw uas muaj cov nplhaib tsib-membered thiab rau-membered. Fullerenes yog hu ua "nano-prince" vim lawv cov symm zoo meej ...

Tuam Tshoj Txoj Cai Tswjfwm Ob Chav ntawm Kev Siv Hluav Taws Xob Txhais Li Cas rau Cov Lag Luam Kev Lag Luam? Tsis ntev los no, ntau lub lag luam kev lag luam tau raug kev txom nyem ntau los ntawm kev siv Txoj Cai Tswjfwm Ob Chav ntawm Kev Siv Hluav Taws Xob hauv Suav teb. Wh...

Fullerene C60 Muaj 60 lub carbon atoms tsim ib yam dab tsi uas zoo li lub pob ncaws pob hollow, C60 yog tib lub molecule ntawm ib qho khoom los tsim ib lub tawb spherical, muab nws cov khoom siv lub cev thiab tshuaj lom neeg tsis sib xws. peb lub Hoobkas...

Cov kev sim tau qhia txog ntau zaus ntawm cov tshuaj tua kab mob quaternary ammonium ua kev kho rau ntau yam kab mob, suav nrog coronaviruses: cov no ua haujlwm los ntawm kev ua kom cov txheej txheem lipid tiv thaiv uas npog cov kab mob zoo li SARS-CoV-2 vam khom ...

Cov ntsev ammonium Quaternary (QAS) yog cov tshuaj cationic uas muaj cov pab pawg alkyl hauv cov saw ntev ntawm C8-C18, uas yaj tau hauv dej thiab siv tau ua cov tshuaj tua kab mob hauv kev lag luam textile. QAS yog cov tshuaj ionic uas muaj quaternary ammonium...