Hydrofluoric Acid (HF)
Lintlha tsa Sehlahisoa
Litlhaloso tse fanoeng
Mokelikeli o pepeneneng Litaba ≥ 35% -55%
(Bophahamo ba referense ea kopo 'ts'ebeliso ea sehlahisoa')
Khase ea hydrogen fluoride e qhibiliha ka metsing, 'me tharollo ea eona ea metsi e bitsoa hydrofluoric acid.Hangata sehlahisoa ke 35% -50% ea hydrogen fluoride aqueous solution, mahloriso a phahameng ka ho fetisisa a ka fihla ho 75%, bakeng sa mokelikeli o se nang mebala o hlakileng oa mosi.Ho fofonela mosi o hlabang, o tsubehang, o mosoeu moeeng.Ke asiti e matla e mahareng e senyang haholo mme e ka senya likhalase le silicate ho etsa silicon tetrafluoride ea gaseous.E ka boela ea sebelisana le tšepe, tšepe ea oxides le hydroxides ho etsa matsoai a sa tšoaneng, empa phello ha e matla joaloka hydrochloric acid.Khauta, polatinamo, loto, parafine le lipolasetiki tse ling ha li khone ho e sebelisa, kahoo lijana li ka etsoa.Khase ea hydrogen fluoride e entsoe ka polymerized habonolo ho theha (HF) 2 (HF) 3 · limolek'hule tsa homochain, 'me boemong ba mokelikeli, tekanyo ea polymerization ea eketseha.Boloka ka lijaneng tse entsoeng ka loto, boka kapa polasetiki.E chefo haholo 'me e ka baka liso ha e kopana le letlalo.
EVERBRIGHT® 'e tla boela e fane ka lintlha tse ikhethileng: content/whiteness/particlesize/PHvalue/color/packagingstyle/ lintlha tsa sephutheloana le lihlahisoa tse ling tse loketseng maemo a hau a ts'ebeliso,' me e fane ka lisampole tsa mahala.
Parameter ea sehlahisoa
7664-39-3
231-634-8
20.01
Asiti ea inorganic
1.26g/cm³
qhibilihang ka metsing
120(35.3%)
-83.1(hloekileng)
Tšebeliso ea Sehlahisoa
Ho khetha lehlabathe la quartz
E sebetsa hantle ha e phekoloa ka hydrofluoric acid, empa ho hlokahala hore ho be le maemo a holimo.Ha e arolelanoa le sodium disulfite, metsoako e tlaase ea hydrofluoric acid e ka sebelisoa.Motsoako o itseng oa hydrochloric acid le hydrofluoric acid solution o ne o kopantsoe ka seretse sa quartz ka nako e le 'ngoe ho ea ka tekanyo;E ka boela ea phekoloa ka tharollo ea hydrochloric acid pele, e hlatsuoa ebe e phekoloa ka hydrofluoric acid, e tšoaroa ka mocheso o phahameng ka lihora tse 2-3, ebe e hloekisoa le ho hloekisoa, e ka khonang ho tlosa litšila le li-oxide ka holim'a lehlabathe la quartz le ho ntlafatsa. bohloeki le boleng ba lehlabathe la quartz.
Kalafo ea holim'a tšepe
Tlosa litšila tse nang le oksijene holim'a metsi, hydrofluoric acid ke acid e fokolang, e tšoanang le matla a formic acid.Kakaretso ea hydrofluoric acid e fumanehang khoebong ke 30% ho isa ho 50%.Litšobotsi tse ka sehloohong tsa ho tlosa mafome a hydrofluoric acid ke tse latelang:
(1) E ka qhala metsoako e nang le silicon, aluminium, chromium le li-oxide tse ling tsa tšepe le tsona li na le mokoloto o motle, oo hangata o sebelisetsoang ho etsa li-castings, tšepe e sa hloekang le lisebelisoa tse ling.
(2) Bakeng sa lisebelisoa tsa tšepe, hydrofluoric acid e tlase e ka sebelisoa bakeng sa ho tlosa mafome.Tharollo ea Hydrofluoric acid e nang le 70% ea mahloriso e na le phello ea passivation holim'a tšepe
(3) Hydrofluoric acid e nang le motsoako oa hoo e ka bang 10% e na le phello e fokolang ea corrosion ho magnesium le lisebelisoa tsa eona, kahoo hangata e sebelisoa ho etching ea magnesium workpieces.
(4) loto ka kakaretso ha e jeoe ke hydrofluoric acid;Nickel e na le khanyetso e matla litharollong tsa hydrofluoric acid tse nang le likhakanyo tse fetang 60%.Hydrofluoric acid e chefo haholo ebile ha e fetohe, 'me e sebelisoa ho thibela ho kopana ha batho le metsi a hydrofluoric acid le hydrogen fluoride, tanka ea etching e tiisitsoe hantle ebile e na le sesebelisoa se setle sa moea,' me metsi a litšila a hloekisitsoeng a ka ntšoa.
Ho sebetsa ha graphite
Hydrofluoric acid ke asiti e matla e ka sebetsanang le hoo e batlang e le litšila tsohle tsa graphite, 'me graphite e na le ho hanyetsa acid e ntle, haholo-holo e ka hanyetsa hydrofluoric acid, e etsang qeto ea hore graphite e ka hloekisoa ka hydrofluoric acid.Mokhoa o ka sehloohong oa mokhoa oa hydrofluoric acid ke ho kopanya graphite le hydrofluoric acid, le ho itšoara ka hydrofluoric acid le litšila ka nako e itseng ho hlahisa lintho tse qhibilihang kapa tse fokolang, ka mor'a ho hlatsoa ho tlosa litšila, ho felloa ke metsi le ho omisa ho fumana graphite e hloekisitsoeng.
E khethehileng bakeng sa merafo ea lefatše e sa tloaelehang
Mokhoa oa ho lokisa oa anhydrous rare earth fluoride ke ho thefula fluoride e sa tloaelehang ea lefats'e e nang le hydrated ho tsoa ho tharollo e nang le metsi, ebe e ntša metsi kapa e ntša fluorinate ea lefatše e sa tloaelehang ka kotloloho ka sesebelisoa sa fluorinating.Ho qhibiliha ha fluoride ea lefats'e e sa tloaelehang e nyane haholo, 'me e ka tšeloa ho tsoa ho litharollo tsa hydrofluoric, sulfuric, kapa nitric acid tsa lefats'e le sa tloaelehang ho sebelisa hydrofluoric acid (moholi o na ka sebopeho sa hydrated fluoride).
TPT-LCD Screen thinning (Morero oa elektroniki)
Tlas'a tšireletso ea photoresist le edge glue, mahloriso a hydrofluoric acid a fetoloa, palo e itseng ea nitric acid, concentrated sulfuric acid le hydrochloric acid e eketsoa, 'me maemo a thusang a ultrasonic a eketsoa, ho hlakile hore tekanyo ea etching e ntlafalitsoe.Ho hloekisa ka ho fapanyetsana ho ka fokotsa ka nepo ho ba mahoashe holimo le ho fokotsa pula ea lihokelo tse tšoeu tsa bokaholimo.Bothata ba holim'a metsi a mahoashe le holim'a metsi a bosoeu bo rarolloa.
Fiber corrosion
Hydrofluoric acid e tletse corrosion photonic crystal fiber (PCF).Hydrofluoric acid e tletse ka har'a masoba a fiber e otlolohileng ea photonic crystal.Ka ho fetola sebopeho sa eona sa sefapano, kristale ea photonic e nang le sebopeho se khethehileng e ntlafatsoa 'me optical conductivity ea eona e fetoloa.Liphetho li bonts'a hore tahlehelo ea ho lutla le tahlehelo e hasaneng e fokotseha ka keketseho ea tekanyo ea porosity corrosion, "nonlinear coefficient" e eketseha ka ho hlaka, index e sebetsang ea refractive ea hlobo ea mantlha le index e ts'oanang ea refractive ea "cladding" e fokotseha ka tsela e ts'oanang, 'me sekhahla sa lebelo la sehlopha. le tsona lia fetoha.
