Hydrofluoric acid (HF)
Faahfaahinta Alaabta
Tilmaamaha waa la bixiyay
dareere hufan Waxa ku jira ≥ 35% -55%
(Baaxadda tixraaca codsiga 'isticmaalka alaabta')
Gaaska fluoride ee Hydrogen wuxuu ku milmaa biyaha, xalkiisa aqueous waxaa loo yaqaan hydrofluoric acid.Alaabtu inta badan waa 35%-50% hydrogen fluoride gaaska aqueous, diiradda ugu sareysa waxay gaari kartaa 75%, dareeraha qiiqa ee aan midab lahayn.Ku ur ur daran, kacsan, qiiq cad hawada.Waa aashitada inorganic acid xoog dhexdhexaad ah oo aad u daxalaysa oo daxalaynaysa dhalooyinka iyo silicates si ay u sameeyaan silikoon tetrafluoride gaas ah.Waxa kale oo ay la falgeli kartaa biraha, oksaydhyada birta iyo hydroxides si ay u sameeyaan milixyo kala duwan, laakiin saameyntu maaha mid xooggan sida hydrochloric acid.Dahab, platinum, rasaas, paraffin iyo caagadaha qaarkood ma isticmaali karaan, sidaas darteed weel waa la samayn karaa.Gaaska fluoride hydrogen si fudud ayaa loo sameeyay si uu u sameeyo (HF) 2 (HF) 3 · molecules homochain, iyo xaalada dareeraha ah, heerka polymerization ayaa kordha.Ku kaydi weelasha ka samaysan rasaasta rasaasta, wax ama balaastiga.Aad bay sun u tahay waxayna boogo kartaa marka maqaarka taabto.
EVERBRIGHT® sidoo kale waxay ku siin doontaa habaysan: nuxurka/caddaannaanshaha/qaybaha/qiimaha/qiimaha/midabka/qaabka baakaynta/ baakadaha iyo badeecooyinka kale ee gaarka ah ee ku habboon xaaladahaaga isticmaalka, oo bixiya muunado bilaash ah.
Halbeegga Alaabta
7664-39-3
231-634-8
20.01
Aashitada inorganic
1.26g/cm³
ku milmay biyaha
120 (35.3%)
-83.1 (sadiif)
Isticmaalka Alaabta
Quartz ciid-qaadista
Waxay u shaqeysaa sida ugu fiican marka lagu daaweeyo hydrofluoric acid, laakiin uruurin sare ayaa loo baahan yahay.Marka lala wadaago sodium disulfite, uruurinta hoose ee hydrofluoric acid waa la isticmaali karaa.Qayb gaar ah oo ah hydrochloric acid iyo hydrofluoric acid ayaa lagu qasi jiray hoobiye quartz isku mar iyadoo loo eegayo saamiga;Waxa kale oo lagu daweyn karaa xal hydrochloric acid marka hore, in la dhaqo ka dibna lagu daaweeyaa hydrofluoric acid, lagu daaweeyaa heerkulka sare 2-3 saacadood, ka dibna sifeeyo oo nadiif ah, taas oo si wax ku ool ah u saari kartaa wasakh iyo oxides dusha ciidda quartz iyo hagaajin. nadiifnimada iyo tayada ciidda quartz.
Daaweynta dusha birta
Ka saar wasakhda oksijiinta ku jirta oogada, hydrofluoric acid waa asiidh daciif ah, oo la mid ah xoogga formic acid.Isku-darka guud ee acid hydrofluoric ee ganacsi ahaan la heli karo waa 30% ilaa 50%.Astaamaha ugu muhiimsan ee ka saarista miridhku acid hydrofluoric waa sida soo socota:
(1) milmi kara xeryahooda silikoon ka kooban, aluminium, chromium iyo oksaydhyada biraha kale sidoo kale waxay leeyihiin milmay wanaagsan, oo caadi ahaan loo isticmaalo in lagu dhajiyo shubka, birta ahama iyo workpieces kale.
(2) Qalabka birta ah ee birta ah, hydrofluoric acid diirada hoose ayaa loo isticmaali karaa ka saarida miridhku.Xalka aashitada Hydrofluoric oo leh 70% diiradda ayaa saameyn ku yeelanaysa birta
(3) Hydrofluoric acid oo leh fiirsashada qiyaastii 10% waxay leedahay saameyn daxalka daciifka ah ee magnesium iyo alloyskeeda, sidaas darteed waxaa badanaa loo isticmaalaa in lagu dhajiyo qalabka shaqada ee magnesium.
(4) Macdanta rasaasta guud ahaan kuma daxaleysato hydrofluoric acid;Nickelku wuxuu leeyahay iska caabin xooggan oo ah xalalka hydrofluoric acid oo leh xaddi ka badan 60%.Hydrofluoric acid aad bay u sun badan tahay oo waa kacsan tahay, waxaana loo isticmaalaa in lagaga hortago xidhiidhka bini’aadamka ee dareeraha acid hydrofluoric iyo hydrogen fluoride gaaska, taangiga etching ayaa si fiican u xidhan oo leh qalab hawo wanaagsan leh, biyaha wasakhda ah ee fluorinad ee la daweeyayna waa la sii dayn karaa.
Habaynta garaafka
Hydrofluoric acid waa asiidh adag oo ka falcelin karta wax kasta oo wasakh ah oo ku jira garaafyada, graphite-tuna waxay leedahay iska caabin aashito oo wanaagsan, gaar ahaan waxay iska caabin kartaa hydrofluoric acid, taas oo go'aamisa in graphite lagu sifeyn karo hydrofluoric acid.Habka ugu muhiimsan ee habka hydrofluoric acid waa in lagu qaso graphite iyo hydrofluoric acid, iyo ka falcelinta hydrofluoric acid leh wasakh ah in muddo ah si loo soo saaro walxaha milmay ama kacsan, ka dib markii la dhaqo si looga saaro wasakhda, fuuqbaxa iyo qalajinta si aad u hesho graphite nadiif ah.
Gaar ahaan macdanta dhulka dhifka ah
Habka diyaarinta anhydrous dhif ah fluoride dhulka waa in ay soo dedejiso fluoride dhul naad ah fuud ka soo dareere aqueous, ka dibna fuuqbaxa ama fluorinat dhulka dhif ah oksaydh si toos ah wakiilka fluorine.Solubility of fluoride naadir ah waa mid aad u yar, waxaana laga soo daadin karaa hydrofluoric, sulfuric, ama nitric acid xalalka dhul dhif ah iyadoo la isticmaalayo hydrofluoric acid (daadku wuxuu ku soo da'ay qaab fluoride fuuqsaday).
khafiifinta Shaashadda TPT-LCD (darajada korantada)
Iyada oo la ilaalinayo xabagta sawir-qaadista iyo xabagta cidhifka, xoojinta acid hydrofluoric ayaa la hagaajiyaa, qadar gaar ah oo nitric acid ah, sulfuric acid iyo hydrochloric acid ayaa lagu daray, iyo xaaladaha kaaliyaha ultrasonic ayaa lagu daraa, heerka etching ayaa si cad loo hagaajiyay.Nadiifinta beddelka ah waxay si wax ku ool ah u yareeyn kartaa qallafsanaanta dusha sare waxayna yareyn kartaa roobabka lifaaqyada dusha cad.Dhibaatada dusha qallafsan iyo roobka xabagta cad cad waa la xalliyey.
Daxalka Fiberka
Hydrofluoric acid ayaa ka buuxsamay daxalka loo yaqaan 'photonic crystal fiber' (PCF).Hydrofluoric acid waxaa ka buuxsamay daldaloolada fiber crystal photonic fidsan.Marka la beddelo qaab-dhismeedka qaybta iskutallaabta, fiber-ka crystal photonic oo leh qaab-dhismeed gaar ah ayaa la horumariyaa waxaana la beddelaa hab-dhismeedkeeda indhaha.Natiijooyinku waxay muujinayaan in luminta daadinta iyo lumista kala firdhisku ay hoos u dhacdo korodhka heerka daxalka porosity, iskuxirnaanta aan tooska ahayn ayaa si cad u kordheysa, tusaha wax-ku-oolka ah ee caaryada xudunta u ah iyo index refractive ee u dhigma ee daboolka ayaa hoos u dhacaya si isku mid ah, iyo kala firdhisanaanta kooxda sidoo kale isbedel.
