2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Cov khoom siv loj tshaj plaws ua los ntawm naphthalene yog npauj tshuaj tua kab , nyob rau hauv daim ntawv ntawm mothballs los yog crystals, thiab chav dej deodorant blocks. Nws kuj yog siv los ua dyes, resins, tawv tanning agents, thiab cov tshuaj tua kab carbaryl carbaryl Carbaryl (1-naphthyl methylcarbamate) yog ib tug tshuaj nyob rau hauv carbamate tsev neeg siv chiefly ua tshuaj tua kab. … Carbaryl yog cov tshuaj tua kab thib peb hauv Tebchaws Meskas rau kev ua vaj tsev, kev ua liaj ua teb, thiab kev tiv thaiv hav zoov thiab thaj chaw thaj chaw. Raws li ib tug kws kho tsiaj, nws yog hu ua carbaril (INN). https://en.wikipedia.org › wiki › Carbaryl
Carbaryl - Wikipedia
Naphthalene ua li cas?
Naphthalene tuaj yeem tsim tawm los ntawm cov thee tar lossis roj av. Distillation thiab fractionation ntawm thee tar yog txheej txheem ntau lawm. … Cov naphthalene ces rov qab los ntawm fractionation, decolorized, thiab purified los ntawm crystallization. Naphthalene ua los ntawm roj av yog li 99% ntshiab.
Naphthalene nyob qhov twg?
Naphthalene yog tsim los ntawm cov roj crude lossis thee tar. Nws tseem yog tsim thaum cov khoom kub hnyiab, yog li naphthalene muaj nyob rau hauv cov pa luam yeeb, tsheb tso tsheb, thiab cov pa taws los ntawm hluav taws hav zoov. Nws yog siv los ua tshuaj tua kab thiab tshuaj tua kab. Naphthalene tau xub sau npe ua tshuaj tua kab hauv Tebchaws Meskas hauv xyoo 1948.
Npaj siv naphthalene yog dab tsi?
Naphthalene siv hauv kev tsim cov yas, resins, fuels, thiab dyes. Nws kuj tseem siv los ua cov tshuaj tua kab fumigant uas ua haujlwm los ntawm kev xa ncaj qha los ntawm cov khoom mus rau hauv cov pa phem. Cov txheej txheem no hu ua sublimation.
Yam khoom twg yog siv los ua cov pob naphthalene?
Lawv yog tsim los ntawm naphthalene flakes los ntawm lub ntsiav tshuaj ua tshuab muaj lub pob zoo li tuag. Cov khoom muaj kev lag luam dav thiab cov nqi peev tsawg. Cov khoom siv raw yog xav tau rau kev tsim khoom Naphthalene Balls yog Naphthalene flakes, camphor, phenol thiab lwm yam.
Pom zoo:
Thaum lub sijhawm ua pa ntawm tes uas ntawm cov hauv qab no tso tawm los ntawm cov khoom lag luam?
Thaum lub sijhawm ua pa aerobic cellular, qabzib reacts nrog oxygen, tsim ATP uas tuaj yeem siv los ntawm tes. carbon dioxide thiab dej yog tsim los ntawm cov khoom lag luam. Hauv kev ua pa ntawm tes, qabzib thiab oxygen hnov qab tsim ATP.
Qhov twg hauv qab no txiav txim siab txog cov luag haujlwm ntawm cov neeg muag khoom / tus nqi qis thiab cov neeg yuav khoom / tus neeg xauj tsev?
Cov luag haujlwm ntawm cov neeg muag khoom / tus neeg xauj tsev thiab cov neeg yuav khoom / tus neeg xauj tsev yog txiav txim siab los ntawm (1) nqe lus uas ob tog tau teev tseg hauv kev cog lus, (2) kev cai, thiab (3) cov cai teev tseg los ntawm Uniform Commercial Code (UCC).
Puas yog cov roj chlorine yog cov khoom lossis cov khoom sib xyaw?
Chlorine yog nyob rau hauv pawg 17 ntawm lub sij hawm lub sij hawm, tseem hu ua lub halogens, thiab tsis pom raws li lub caij nyob rau hauv cov xwm - tsuas yog ib tug compound. Feem ntau ntawm cov no yog ntsev, los yog sodium chloride, thiab cov poov tshuaj compounds sylvite (los yog potassium chloride) thiab carnallite (potassium magnesium chloride hexahydrate).
Cov khoom siv puas yog khoom vaj khoom tsev?
khoom yog a khoom vaj khoom tsev ruaj khov, lossis khoom tsis yog tam sim no. Qhov no txhais tau tias nws yuav tsis raug muag hauv lub xyoo tom ntej accounting thiab tsis tuaj yeem ua kua tau yooj yim. Txawm hais tias nws yog qhov zoo kom muaj cov khoom muaj nqis tam sim no uas muab koj lub lag luam npaj nkag mus rau cov nyiaj ntsuab, tau txais cov cuab tam mus sij hawm ntev kuj yog qhov zoo.
Puas yog cov nroj tsuag carnivorous yog cov tsim khoom lossis cov neeg siv khoom?
As producers, cov nroj tsuag tsim lub hauv paus ntawm yuav luag txhua cov khoom noj hauv ntiaj teb. Carnivorous nroj tsuag zoo li "tig rooj" thaum lawv ua raws li cov neeg siv khoom, gobbling kab, qav, thiab cov tsiaj me me. Puas yog Venus flytrap yog tus neeg siv khoom thiab tsim khoom?
