2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Dispersing agents, tseem hu ua dispersants, yog cov tshuaj uas muaj surfactants thiab/lossis cov kuab tshuaj sib xyaws uas ua rau cov roj av tawg ua cov tee me me.
Yuav ua li cas hauv qab no yog piv txwv ntawm kev sib cais tus neeg sawv cev?
Dispersing agents belongs to mainly formaldehyde condensates ntawm naphthalene sulphonic acid, cresol, 1-naphthol 6-sulphonic acids, fatty alcoholethylene oxide condensate, alkyl aryl sulphonsulates los yog lignin. - cov condensate ntawm naphthalene sulphonic acid yog qhov nrov tshaj plaws.
Dab tsi yog tus neeg sawv cev sib faib hauv chemistry?
A dispersant lossis dispersing agent yog ib yam khoom, feem ntau yog surfactant, uas yog ntxiv rau kev ncua ntawm cov khoom lossis cov kua hauv cov kua (xws li colloid lossis emulsion) txhawm rau txhim kho kev sib cais ntawm cov khoom thiab tiv thaiv lawv qhov chaw los yog clumping.
Dab tsi yog cov tshuaj dispersants?
Cov hluavtaws surfactants tuaj yeem yog anionic, cationic, nonionic, lossis amphoteric; Txawm li cas los xij, tsuas yog anionic lossis nonionic surfactants yog siv los ua cov roj crude dispersants. Surfactant mixtures feem ntau suav nrog lwm cov tshuaj, xws li cov kuab tshuaj, uas txhim khu lub peev xwm dispersing ntawm surfactant [10].
Vim li cas thiaj siv bio dispersants?
Siv bio dispersants
A bio dispersant tuaj yeem yog siv tau ob qho tib si tshem tawm biofilm ntawm lub kaw lus thiab tiv thaiv kev txhim kho biofilm hauv ib qhohuv system. Raws li nws paub tias cov kab mob Legionella xaiv loj hlob nyob rau hauv cov khaubncaws sab nraud povtseg ntawm biofilm, ua kom lub cua txias ntauwd biofilm tsis muaj qhov tseem ceeb.
Pom zoo:
Leej twg yog tus neeg sawv cev ntawm kev sib raug zoo?
Hauv Teb Chaws Asmeskas, cov thawj coj ntawm kev sib raug zoo suav nrog tsev neeg, pawg phooj ywg, tsev kawm ntawv, thiab xov xwm loj. 7 tus neeg sawv cev ntawm kev sib raug zoo yog dab tsi? tus neeg sawv cev ntawm kev sib raug zoo:
Dab tsi yog qhov txawv ntawm tus neeg sawv cev thiab kev ua nom ua tswv?
yog hais tias diplomatic yog science ntawm diplomas, los yog kos duab ntawm deciphering ancient sau thiab txiav txim lawv hnub nyoog, qhabnias, thiab lwm yam; paleography thaum diplomat yog ib tug neeg uas tau lees paub, xws li ib tug ambassador, officially sawv cev rau tsoom fwv nyob rau hauv nws cov kev sib raug zoo nrog lwm tsoom fwv los yog thoob ntiaj teb … Puas yog diplomats?
Leej twg yog tus neeg sawv cev ntsuas hauv daim npav?
Raws li Tshooj 163 ntawm Txoj Cai Se Nyiaj Tau Los, Tus Neeg Sawv Cev Tus Neeg Soj Ntsuam yog tus neeg ua haujlwm ua tus sawv cev ntawm NRI rau lub hom phiaj ntawmkev ntsuas se nyiaj tau los. Leej twg hu ua tus neeg ntsuam xyuas? Tus Neeg Sawv Cev Tus Neeg Soj Ntsuam Tseem yuav muaj rooj plaub uas tus neeg yuav tsum tau them se rau cov nyiaj tau los lossis kev poob uas tshwm sim los ntawm tus thib peb.
Tus neeg sawv cev puas tuaj yeem muaj ob tus neeg xam xaj?
Dual citizenship kuj nthuav tawm ib qho qhov teeb meem hauvtxoj haujlwm ntawm cov neeg ua haujlwm rau kev tshaj tawm txawv teb chaws. Piv txwv li, Vienna Convention on Diplomatic Relations tsis muab kev cai lij choj thiab kev tiv thaiv rau ob haiv neeg;
Tus neeg sawv cev ntawm lub rooj zaum nyob qhov twg?
Cov neeg sawv cev tshwm sim hauv pawg 1, 2, thiab 12–18. Cov ntsiab lus no yog cov hlau sawv cev, metalloids, thiab nonmetals. Tus neeg sawv cev nyob rau hauv lub rooj zaum nyob qhov twg? Cov neeg sawv cev tshwm sim hauv pawg 1, 2, thiab 12–18.
