Puas yog fluorine thiab fluorine tib yam?

Cov txheej txheem:

Puas yog fluorine thiab fluorine tib yam?
Puas yog fluorine thiab fluorine tib yam?
Anonim

Ua ntej, nws yog fluorine thiab fluoride thiab tsis yog hmoov nplej thiab hmoov nplej. Kev sau tsis raug yog ib txwm muaj, tab sis tus "u" los ua ntej "o " hauv ob qho . Fluorine yog ib qho tshuaj lom neeg. … Cov fluorine anion, F-, los yog ib qho ntawm cov tebchaw uas muaj cov anion yog hu ua fluorides.

Vim li cas nws thiaj li muaj fluoride thiab tsis muaj fluorine?

Fluoride yog tshuaj muaj feem xyuam nrog fluorine, tab sis lawv tsis zoo ib yam. Fluoride yog ib qho tshuaj sib txawv. Fluoride yog tsim los ntawm cov ntsev uas tsim thaum fluorine ua ke nrog cov zaub mov hauv av lossis pob zeb. Fluoride feem ntau yog qhov ruaj khov thiab tsis ua haujlwm zoo, tsis zoo li nws cov tshuaj fluorine.

Puas muaj fluoride hauv tshuaj txhuam hniav?

Tus nqi ntawm cov tshuaj fluoride hauv cov tshuaj txhuam hniav tuaj yeem pom ntawm sab ntawm lub rajthiab ntsuas hauv qhov chaw ib lab (ppm). Cov tshuaj txhuam hniav uas muaj 1, 350 txog 1, 500ppm fluoride yog qhov zoo tshaj plaws. Koj tus kws kho hniav yuav qhia kom koj siv cov tshuaj txhuam hniav uas muaj zog dua yog tias koj lossis koj tus menyuam muaj kev pheej hmoo ntawm cov hniav lwj.

fluorine siv qhov twg?

Nws kuj yog siv los ua sulfur hexafluoride, cov roj insulating rau cov hluav taws xob hluav taws xob siab. Qhov tseeb, fluorine yog siv ntau yam tshuaj fluorochemicals, suav nrog cov kuab tshuaj thiab cov yas kub kub, xws li Teflon (poly (tetrafluoroethene), PTFE).

fluorine tuaj yeem pom qhov twg?

Fluorine tshwm sim naturally hauv lub ntiaj teb crust qhov twgNws tuaj yeem pom hauv pob zeb, thee thiab av nplaum. Fluorides raug tso tawm rau hauv huab cua hauv cov av uas muaj cua tshuab. Fluorine yog 13th feem ntau muaj nyob rau hauv lub ntiaj teb daim tawv nqaij: 950 ppm yog contained nyob rau hauv nws.

Pom zoo:

Nthuav cov khoom
Thaum twg mob coccyx hnyav?
Nyeem ntxiv

Thaum twg mob coccyx hnyav?

Koj yuav tsum hu rau koj tus kws kho mob tam sim yog tias koj muaj mob hauv pob txha thiab lwm yam tsos mob hauv qab no: A sudden o los yog mob . Constipation uas kav ntev. Sudden loog, qaug zog, los yog tingling ntawm ob txhais ceg los yog ob txhais ceg.

Lub xov tooj cua puas tuaj yeem tsim hluav taws xob?
Nyeem ntxiv

Lub xov tooj cua puas tuaj yeem tsim hluav taws xob?

Raws li nrog lub teeb pom kev zoo, feem ntau ntawm cov huab cua raug tshem tawm ntawm lub ntsuas hluav taws xob, tawm hauv qhov cua nyias, tsis tshua muaj cua sov sab hauv. … Nws yog qhov sib txawv ntawm qhov kub thiab txias uas ua rau huab cua ntws thiab ua rau lub kiv cua kiv, tsim kom muaj lub zog me me, tab sis txaus los siv tau.

Kol streamer yog dab tsi?
Nyeem ntxiv

Kol streamer yog dab tsi?

Ntawm PARKLU, peb txhais KOLs (Cov Thawj Coj Cov Tswv Yim Tseem Ceeb) ua cov neeg tsim cov ntsiab lus uas tau tsim lawv cov hauv qab hauv kev sib tham hauv xov xwm lossis cov ntsiab lus faib tawm platforms. Yuav ua li cas los ua tus Kol streamer?