I-Hydrofluoric Acid (HF)
Imininingwane Yomkhiqizo
Imininingwane enikeziwe
Uketshezi olusobala Okuqukethwe ≥ 35% -55%
(Ububanzi bereferensi yesicelo 'ukusetshenziswa komkhiqizo')
Igesi ye-Hydrogen fluoride iyancibilika emanzini, futhi isisombululo sayo esinamanzi sibizwa nge-hydrofluoric acid.Umkhiqizo uvamise ukuba yi-35% -50% ye-hydrogen fluoride gas solution, i-concentration ephezulu kakhulu ingafinyelela ku-75%, kuketshezi lwentuthu olucacile olungenambala.Iphunga elishisayo, elishisayo, elimhlophe emoyeni.Kuyi-asidi ye-inorganic enamandla amaphakathi edla kakhulu futhi ingagqwalisa ingilazi nama-silicates akhe i-silicon tetrafluoride eyigesi.Ingakwazi futhi ukusebenzisana nezinsimbi, i-metal oxides nama-hydroxides ukwenza usawoti ohlukahlukene, kodwa umphumela awunamandla njenge-hydrochloric acid.Igolide, iplatinamu, umthofu, upharafini namanye amapulasitiki awakwazi ukukusebenzisa, ngakho izitsha zingenziwa.Igesi ye-Hydrogen fluoride yenziwa i-polymerized kalula ukuze yakhe (HF) 2 (HF) 3· ama-homochain molecule, futhi esimweni soketshezi, izinga le-polymerization liyakhula.Gcina ezitsheni ezenziwe ngomthofu, i-wax noma ipulasitiki.Inobuthi obukhulu futhi ingaba nesilonda lapho ithinta isikhumba.
I-EVERBRIGHT® 'izophinda ihlinzeke ngendlela oyifisayo :okuqukethwe/ubumhlophe/usayizi wezinhlayiya/PHvalue/umbala/isitayela sokupakisha/ ukucaciswa kwephakheji neminye imikhiqizo eqondene nezimo zakho zokusebenzisa, futhi ikunikeze amasampula amahhala.
Ipharamitha Yomkhiqizo
7664-39-3
231-634-8
20.01
Inorganic acid
1.26g/cm³
encibilika emanzini
120(35.3%)
-83.1(okumsulwa)
Ukusetshenziswa komkhiqizo
Ukukhethwa kwesihlabathi se-quartz
Isebenza kangcono uma iphathwa nge-hydrofluoric acid, kodwa ukugxila okuphezulu kuyadingeka.Uma kwabelwana nge-sodium disulfite, ukugxila okuphansi kwe-hydrofluoric acid kungasetshenziswa.Ukuhlushwa okuthile kwe-hydrochloric acid nesisombululo se-hydrofluoric acid kwaxutshwa nodaka lwe-quartz ngesikhathi esifanayo ngokuya ngesilinganiso;Ingase futhi iphathwe ngesisombululo se-hydrochloric acid kuqala, igeze bese iphathwa nge-hydrofluoric acid, iphathwe ngokushisa okuphezulu amahora angu-2-3, bese ihlungwa futhi ihlanzwe, engasusa ngempumelelo ukungcola nama-oxide ebusweni besihlabathi se-quartz futhi ithuthukise. ubumsulwa kanye nekhwalithi yesihlabathi se-quartz.
Ukwelashwa kwendawo yensimbi
Susa ukungcola okungaphezulu okuqukethe umoya-mpilo, i-hydrofluoric acid iyi-asidi ebuthakathaka, efana namandla e-formic acid.I-concentration evamile ye-hydrofluoric acid etholakala ngokuthengiswayo ingama-30% kuya ku-50%.Izici eziyinhloko zokususwa kokugqwala kwe-hydrofluoric acid zimi kanje:
(1) Ingakwazi ukuncibilikisa izinhlanganisela eziqukethe i-silicon, i-aluminium, i-chromium namanye ama-oxide ensimbi nawo abe nokuncibilika okuhle, okuvame ukusetshenziselwa ukuqopha ukusakaza, insimbi engagqwali nezinye izinto zokusebenza.
(2) Ngezinsimbi zokusebenza, i-hydrofluoric acid ephansi ingasetshenziselwa ukususa ukugqwala.Isixazululo se-Hydrofluoric acid esino-70% wokugxila sinomphumela wokudlula ensimbi
(3) I-Hydrofluoric acid ene-concentration engaba ngu-10% inomphumela obuthakathaka wokugqwala ku-magnesium nama-alloys ayo, ngakho-ke ivamise ukusetshenziselwa ukushumeka izingcezu zokusebenza ze-magnesium.
(4) Umthofu ngokuvamile awugqwali nge-hydrofluoric acid;I-Nickel inokumelana okuqinile kuzixazululo ze-hydrofluoric acid ezinokugxila okukhulu kuno-60%.I-Hydrofluoric acid inobuthi obuphezulu futhi iyaguquguquka, futhi isetshenziselwa ukuvimbela ukuthintana kwabantu ne-hydrofluoric acid liquid kanye negesi ye-hydrogen fluoride, ithangi lokufaka i-etching livalwa kangcono futhi linomshini omuhle wokungenisa umoya, futhi amanzi angcolile axutshwe ne-fluorinated angakhishwa.
Ukucutshungulwa kwe-graphite
I-Hydrofluoric acid iyi-asidi eqinile engasabela cishe nganoma yikuphi ukungcola ku-graphite, futhi i-graphite inokumelana ne-asidi enhle, ikakhulukazi ingamelana ne-hydrofluoric acid, enquma ukuthi i-graphite ingahlanzwa nge-hydrofluoric acid.Inqubo eyinhloko yendlela ye-hydrofluoric acid iwukuxuba i-graphite ne-hydrofluoric acid, futhi iphendule i-hydrofluoric acid nokungcola isikhathi esithile ukukhiqiza izinto ezincibilikayo noma ama-volatiles, ngemva kokugeza ukuze kukhishwe ukungcola, ukuphelelwa amandla kwamanzi nokomisa ukuze uthole i-graphite ehlanzekile.
Okukhethekile kwezimayini zomhlaba ezingavamile
Indlela yokulungiselela ye-anhydrous rare earth fluoride iwukuthela i-fluoride yomhlaba engavamile enamanzi ephuma kwisisombululo esinamanzi, bese iqeda amanzi noma i-fluorinate i-earth oxide engavamile ngokuqondile nge-ejenti ye-fluorinating.Ukunyibilika kwe-fluoride yomhlaba eyivelakancane kuncane kakhulu, futhi kungenziwa kunezixazululo ze-hydrofluoric, sulfuric, noma i-nitric acid yomhlaba engavamile kusetshenziswa i-hydrofluoric acid (imvula iwa ngendlela ye-hydrated fluoride).
Ukunciphisa isikrini se-TPT-LCD (Izinga le-elekthronikhi)
Ngaphansi kokuvikelwa kwe-photoresist kanye neglue enqenqemeni, ukuhlushwa kwe-hydrofluoric acid kulungiswa, inani elithile le-nitric acid, i-sulfuric acid egxilile kanye ne-hydrochloric acid yengezwa, futhi izimo ezisizayo ze-ultrasonic zengezwe, izinga lokubamba ngokusobala lithuthukisiwe.Ukuhlanza ngokushintshana kunganciphisa ngempumelelo ukuhwalala kwendawo futhi kunciphise imvula yezinto ezinamathiselwe endaweni emhlophe.Inkinga yezulu elimahhadlahhadla kanye nemvula enamathelayo emhlophe iyaxazululeka.
I-Fiber corrosion
I-Hydrofluoric acid igcwele i-corrosion photonic crystal fiber (PCF).I-Hydrofluoric acid igcwaliswa ezimbotsheni ze-photonic crystal fiber.Ngokushintsha isakhiwo sayo se-cross section, i-photonic crystal fibre enesakhiwo esithile iyathuthukiswa futhi i-optical conductivity yayo ishintshiwe.Imiphumela ibonisa ukuthi ukulahleka kokuvuza nokulahlekelwa okuhlakazekayo kwehla ngokunyuka kwedigri ye-porosity corrosion, i-coefficient engaqondile ikhuphuka ngokusobala, inkomba esebenzayo yokuphendula yesikhunta esiyinhloko kanye nenkomba ye-refractive efanayo ye-cladding iyancipha ngokuhambisanayo, kanye nokuhlakazeka kwesivinini seqembu. futhi iyashintsha.
