Hydrofluoric acid (HF)
Khoom Paub meej
Cov lus qhia tshwj xeeb muab
Pob tshab kua Cov ntsiab lus ≥ 35% -55%
(Xaiv tau ntawm kev siv cov khoom siv 'cov khoom siv')
Hydrogen fluoride roj yog soluble hauv dej, thiab nws cov kua aqueous yog hu ua hydrofluoric acid. Cov khoom lag luam feem ntau yog 35% -50% hydrogen fluoride roj aque kua aqueous, qhov siab tshaj plaws tuaj yeem ncav cuag 75%, rau cov pa luam yeeb kua. Qhov tsis hnov tsw pungent, tsis muaj suab paj nruas, haus luam yeeb dawb hauv huab cua. Nws yog qhov nruab nrab lub zog inorganic acid uas yog cov iav muaj zog thiab tuaj yeem coricates iav thiab silicates los ua gaseous silicon tetrafluoride. Nws tseem tuaj yeem sib cuam tshuam nrog cov hlau, hlau oxides thiab hydroxides los ua cov ntsev ntau, tab sis cov nyhuv tsis yog li muaj zog li hydrochloric acid. Kub, platinum, txhuas, paraffin thiab qee cov plastics tsis tuaj yeem siv nws, yog li cov thawv ntim tau. Hydrogen fluoride roj yog yooj yim polymerized rau daim ntawv (HF) 2 (HF) 2 (HF)), thiab hauv lub xeev ua kua, qib ua tiav polymerization. Khaws cia rau hauv cov thawv ua los ntawm txhuas, ciab lossis yas. Nws yog cov tshuaj lom thiab muaj peev xwm siv tau rau thaum muaj kev sib cuag.
Evenbright® 'LL tseem muab cov ntsiab lus customized: Cov ntsiab lus / Partenize / Phaj Cov Khoom Siv thiab cov khoom tshwj xeeb uas haum rau koj siv cov xwm txheej, thiab muab cov qauv dawb.
Khoom Parameter
7664-39-3
231-634-8
20.01
Inorganic acid
1.26g / cm³
soluble hauv dej
120 (35.3%)
-83.1 (ntshiab)
Khoom Siv Khoom Siv
Quartz Sand Pickling
Nws ua haujlwm zoo tshaj plaws thaum kho nrog hydrofluoric acid, tab sis ntau dua kev xav tau. Thaum sib koom nrog sodium disulfite, qis dua siab ntawm cov kua roj hlwb ua tau. Qee cov kev xav ntawm hydrochloric acid thiab hydrofluoric acid tau sib xyaw ua ke rau hauv Quatz Cug tib lub sijhawm raws li kev faib tawm; Nws kuj tseem tuaj yeem raug kho nrog hydrochloric acid ras ua ntej, ntxuav thiab tom qab ntawd kho nrog kub ntawm quartz xuab zeb thiab kev ua kom zoo nkauj thiab zoo ntawm quartz xuab zeb.
Hlau Kev Kho
Tshem tawm cov oxygen saum npoo av, hydrofluoric acid yog cov kua qaub tsis muaj zog, zoo sib xws hauv cov kua qaub. Qhov kev txhawb nqa ntawm cov lag luam muaj zog hydrofluoric acid yog 30% rau 50%. Cov yam ntxwv tseem ceeb ntawm hydrofluoric acid Rust tshem tawm yog raws li hauv qab no:
(1) Muaj peev xwm tshem tawm silicon-muaj cov tebchaw, txhuas, chromium thiab lwm cov hlau oxides kuj tseem muaj lub solubility zoo, feem ntau siv los etch casietly siv rau etch store, stainless hlau thiab lwm yam haujlwm.
(2) rau cov hlau ua haujlwm, qis nruab hydrofluoric acid tuaj yeem siv rau xeb tshem tawm. Hydrofluoric acid tov nrog 70% concentration tau hla kev cuam tshuam rau cov hlau
(3) Hydrofluoric acid nrog lub concentration ntawm kwv yees li 10% muaj ib qho tsis muaj zog corrosium thiab nws feem ntau siv nyob rau hauv lub etching ntawm magnesium workpieces.
(4) txhuas feem ntau tsis corroded los ntawm hydrofluoric acid; Nickel tau muaj zog tsis kam nyob rau hauv hydrofrofluoric acid daws teeb meem nrog ntau ntau dua 60%. Hydrofluoric acid yog cov tshuaj lom thiab tsis muaj zog, thiab siv tshuaj fluoride zoo nkauj, thiab muaj cov tshuaj lom dej zoo nkauj, thiab kho kom zoo nkauj fluorinated pov tseg tuaj yeem raug tso tawm.
Graphite ua
Hydrofluoric acid yog cov kua qaub muaj zog uas tuaj yeem hnov nrog yuav luag txhua cov kab mob acid, uas yog qhov ua kom huv cov duab acid. Cov txheej txheem tseem ceeb ntawm cov txheej txheem hydrofluoric yog los sib xyaw graphite nrog cov khoom siv hluav taws xob, tom qab ntxuav tawm kom tshem tawm impurities, lub cev qhuav dej thiab kom qhuav kom tau txais huv graphite.
Tshwj xeeb rau kev tsis tshua muaj lub ntiaj teb
Txoj kev npaj npaj tau ntawm lub ntiaj teb fluoride yog kom siv lub ntiaj teb tsis tshua muaj tshuaj tiv thaiv kab mob aqueous, thiab tom qab ntawd fluorinate lub ntiaj teb tsis tshua muaj tshuaj tiv thaiv fluorinating. Cov solubility ntawm lub ntiaj teb tsis tshua muaj zog heev, thiab nws tuaj yeem ua haujlwm ntawm Hydrofluoric siv cov dej nag (cov nag los yog daus las.
TT-LCD Screen Thinning (Electronic Qib)
Raws li kev tiv thaiv ntawm photoresist thiab cov kua nplaum ntawm hydrofrofic acid tau ntxiv, thiab cov roj ntsha li cov khoom siv roj ntsha tau ntxiv, thiab cov etching tus nqi yog hloov kho. Hloov kev tu tau tuaj yeem txo cov roughness thiab txo cov nag lossis daus ntawm cov khoom sib txuas dawb. Qhov teeb meem ntawm kev ntxhib saum npoo thiab dawb saum ntuj adhesion nag lossis daws.
Fiber Corrosion
Hydrofluoric acid uas puv corrosion Photoonic Crystal fiber ntau (PCF). Hydrofluoric acid yog sau rau hauv lub qhov hws ntawm tus ncab photoonic crystal fiber ntau. Los ntawm kev hloov nws tus kab mob hla, Photonic crystal fiber ntau nrog cov qauv tshwj xeeb yog tsim thiab nws txoj kev kho qhov muag tau hloov pauv. Cov txiaj ntsig qhia tau tias kev xau dej poob thiab tawg kev ua kom muaj zog ntxiv, thiab cov pab pawg tsis tuaj yeem sib raug zoo, thiab cov pab pawg tshaj tawm tsis sib xws tseem hloov.
