Xov xwm
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Kev ua lag luam baking soda ua haujlwm ruaj khov, thiab huab cua kev lag luam hauv kev ua lag luam yog lub teeb thiab ruaj khov.
Kev ua lag luam baking soda ua haujlwm ruaj khov, thiab huab cua kev lag luam hauv kev ua lag luam yog lub teeb thiab ruaj khov. Chav ua baking soda Huainan Debang tseem tsis tau pib ua haujlwm, thiab tag nrho cov kev ua haujlwm ntawm kev lag luam tam sim no yog nyob ib puag ncig 81%. Tus nqi ua lag luam ntawm baking soda ua haujlwm ntawm ...Nyeem ntxiv -
Kev ua lag luam melamine ua haujlwm tas li.
Kev ua lag luam melamine ua haujlwm ruaj khov. Cov chaw tsim khoom feem ntau ua cov xaj uas tseem tab tom tos, thiab tag nrho cov khoom muag tsis ntau. Tsis muaj kev hloov pauv tseem ceeb hauv kev ua lag luam downstream, nrog rau kev ua tau zoo tsis sov thiab kev loj hlob ntawm kev thov tsawg. Feem ntau ntawm lawv tseem xav tau kev rov ua dua tshiab ntawm tus tsim khoom ...Nyeem ntxiv -
Cov qauv iridium tshwj xeeb uas tau tsim tshwj xeeb tso rau ntawm mesoporous tantalum oxide txhim kho kev ua haujlwm, kev ua haujlwm catalytic thiab kev ruaj khov mus sij hawm ntev.
Cov qauv iridium nanostructures tshwj xeeb uas tau tso rau ntawm mesoporous tantalum oxide txhim kho kev ua haujlwm, kev ua haujlwm catalytic thiab kev ruaj khov mus sij hawm ntev. Duab: Cov kws tshawb fawb hauv Kaus Lim Qab Teb thiab Tebchaws Meskas tau tsim cov catalyst iridium tshiab nrog kev nce ntxiv ...Nyeem ntxiv -
Plaub yam zaub mov uas nyiam noj thaum lub caij ntuj sov no muaj tshuaj lom thiab tuaj yeem ua rau qaib tuag taus
Thaum nws los txog rau cov khib nyiab hauv chav ua noj, tsis muaj dab tsi zoo dua li nqaij qaib Cov tsiaj noj txhua yam no yuav noj cov khoom noj seem ntawm koj lub tub yees, rooj lossis lub txee. Kuv muab lub lauj kaub av nplaum npog rau ntawm lub txee hauv chav ua noj thiab sai sai muab cov zaub tev tawv, pob kws rau ntawm lub cob, thiab lwm yam khoom noj uas tsis tau siav...Nyeem ntxiv -
Kev ua lag luam tau pom tias muaj kev nce siab thiab ruaj khov rau hnub so
Kev ua lag luam tau pom tias muaj kev nce siab thiab ruaj khov rau hnub so Lub lim tiam no, qee lub tuam txhab kaw lawv cov khoom siv rau kev kho, tab sis feem ntau, tus nqi thauj khoom ua haujlwm tau nce me ntsis, thiab kev muab khoom txaus, tsuas yog ib nrab ntawm kev muab khoom tau tig ...Nyeem ntxiv -
Oxalic acid yog ib yam khoom siv hauv tsev uas muaj zog heev thiab ua rau khaus.
Oxalic acid yog ib yam khoom siv ntxuav hauv tsev uas muaj zog heev thiab ua rau khaus, yog li nws yog ib qho tsim nyog yuav tsum ua raws li qee txoj kev siv thaum siv nws. Tsab xov xwm no yuav qhia koj txog txoj kev sib tov oxalic acid nrog dej, pab koj yooj yim daws qhov teeb meem ntawm kev ntxuav hauv tsev. ...Nyeem ntxiv -
Nws xav tias cov nqi lag luam feem ntau yuav sib sau ua ke kab rov tav hnub no
Hnub Wednesday, qhov chaw ua lag luam hauv TDI kev ua lag luam tsis muaj teeb meem, thiab kev muab khoom luv luv tseem nruj. Tag nrho cov zis thiab cov khoom muag ntawm cov chaw tsim khoom tsis txaus. Tsis tas li ntawd, thaum kawg ntawm lub xyoo, cov neeg siv khoom ncaj qha ntawm txhua lub Hoobkas tau sib npaug...Nyeem ntxiv -
Tus nqi lag luam hauv tsev ntawm dichloromethane tseem ruaj khov tab sis poob qis
Nag hmo, tus nqi lag luam hauv tsev ntawm dichloromethane tseem ruaj khov thiab poob qis, thiab huab cua kev lag luam hauv khw zoo li qub. Txawm li cas los xij, tom qab tus nqi poob qis, qee tus tub lag luam thiab cov neeg siv khoom hauv qab tseem ua cov xaj, thiab cov khoom lag luam hauv tuam txhab tseem poob qis raws li...Nyeem ntxiv -
Thov xyuam xim rau kev siv cov kua qaub formic
Tsab xov xwm no tau raug tshuaj xyuas raws li Science X cov txheej txheem kho thiab cov cai. Cov neeg kho tau hais txog cov yam ntxwv hauv qab no thaum ua kom ntseeg tau tias cov ntsiab lus muaj kev ncaj ncees: Kev hloov pauv huab cua yog kev tiv thaiv ib puag ncig thoob ntiaj teb...Nyeem ntxiv -
cov tshuaj lom neeg thiab kev coj ua rau yav tom ntej noj qab haus huv dua los ntawm kev tshawb fawb tshiab
Toxic-Free Futures ua haujlwm los txhawb kev siv cov khoom muaj kev nyab xeeb dua, cov tshuaj lom neeg thiab cov kev coj ua rau yav tom ntej noj qab haus huv dua los ntawm kev tshawb fawb tshiab, kev tawm tswv yim, kev teeb tsa hauv zej zog thiab kev koom tes nrog cov neeg siv khoom. Thaum lub Plaub Hlis Ntuj xyoo 2023, Lub Koom Haum Tiv Thaiv Ib Puag Ncig ...Nyeem ntxiv -
Kev siv cov khoom siv optoelectronics uas tsis muaj flux soldering nrog cov pa formic acid.
TRESKY soldering siv cov pa roj formic acid ua ke nrog nitrogen (HCOOH + N2), uas muab qhov zoo hauv optoelectronics thiab photonics sib dhos thiab kev sib txuas ua ke. Formic acid txhim khu kev qha txo cov oxides thiab tshem tawm tag nrho cov flux. Kev siv formic...Nyeem ntxiv -
Amasil formic acid tau pom zoo rau kev lag luam nqaij qaib
BASF thiab Balchem tau txais kev pom zoo los ntawm US Food and Drug Administration (FDA) rau kev siv Amasil formic acid hauv cov khoom noj qaib hauv Tebchaws Meskas. BASF thiab Balchem tau txais kev pom zoo los ntawm US Food and Drug Administration (FDA) rau kev siv Amasil ...Nyeem ntxiv