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Atinaʻeina o le maualuga-mama aʻiaʻi galava acid ma lona faaaogaina i eletise kemisi

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O vailaʻau faʻa eletise e masani ona faʻasino i vailaʻau faʻapitoa mo le eletise. I le taimi nei, e fiasefulu afe o ituaiga, o loʻo manaʻomia tulaga maualuga manaʻoga, maualalo taumafaina, maualuga manaʻoga mo le tumama o le gaosiga ma faʻaaoga le siʻosiʻomaga ma faʻaleleia vave .Ultra-mama maualuga-mama vailaʻau vailaʻau (lauiloa foʻi o Wet Chemicals , poʻo Faʻagasologa vailaʻau), faʻapena foi O se tagata taua tele o vailaʻau eletise, e tele lava ina faʻaaoga mo le fufuluina o fualaʻau (e aofia ai le faʻamagoina), photolithography, etching, atinaʻeina, tifaga aveʻese, doping Eseesega, aofia ai sili atu ma le 80 vailaʻau faʻapitoa. maualuga-mamā acid Ma alkalis, ultra-mama ma maualuga-mama aʻiaʻi solvents ma ultra-maualuga-mama etchant. Lenei o loʻo matou faʻalauiloaina oloa fou o lenei aiga-maualuga-mama aʻiaʻi galava acid
O le Gallic acid (GA), e taʻua foi o le gallic acid, o le gallic acid, o le paʻepaʻe poʻo le samasama samasama pei o le tioata poʻo le pauta, o lona igoa vailaʻau o le 3,4,5-Trihydroxyl benzoic acid (3,4,5-Trihydroxyl benzoic acid). ), molimoli fua faatatau C7H6O5, mole lapoʻa 170.12, throughIt e masani lava ona i ai i le tulaga o le monotaga faʻatasi ma le mamafa o le mamafa o le 1.694 ma le faʻaliʻuga o le 235 i le 240 ° C (pala. A faʻamafanafana i le 100 ~ 120 ℃, e leiloa le vai Crystal: A faʻamafanafanaina i luga atu o le 200 ℃, o le a leiloa le CO2. E maua ai le pyrocarbon GA; e faigofie ona soluble i le vai vevela, ether, ethanol, acetone ma glycerin, ae faigata Soluble i le malulu vai, le mafai ona soluble i le benzene, acetic acid ma chloroform; vailaʻau oti mo tui subcutaneous tui o 4000mg / kilokalama: o le taua PH o le aqueous fofo o le 3 ~ 4; E i ai malosi reducibility, astringent ma astringent tofo, mafai ona faʻaititia auro ma siliva masima ma Fehling's tali, ma tali atu ma ferric chloride e maua ai lanumoana-uliuli Precipitation, nei o se taua lelei vailaʻau masani tele gaosia ma paʻu po tara pei o mata mea masani.
O le Gallic acid e i ai le tele o ituaiga o talosaga, lautele faʻaaogaina i le faʻalapotopotoga tuʻufaʻatasi, ufiufi, vali, vailaʻau, meaai, vailaʻau, tanning, vailaʻau o aso uma, faʻatoʻaga, minerale, ma isi, tele faʻaaogaina i le gaosia o vailaʻau, vali, vaitusi, ma Faʻaaogaina foi o vailaʻau meaʻai, vailaʻau faʻasao, mea uʻamea o loʻo faʻaaoga, ultraviolet mitiia, vailaʻau faʻasaina, vailaʻau oona, imaging agents, vailaʻau vailaʻau, vailaʻau faʻamautuina o le palapala ma soʻoga tuputupu aʻe o fualaʻau, ma isi. O se taua taua vailaʻau vaega.
I tausaga talu ai nei, o le eletise vailaʻau vasega ma maualuga-mama aʻiaʻi galic acid na faʻaaogaina i le US eletise eletise e fufulu tetele-fua tuʻufaʻatasia laupapa matagaluega.
O lona tulaga manaʻomia manaʻomia e matua maoti lava, o le autu faʻailoga o: GA≥99.5%, Na, K, Fe, Cu, Pb, Al, Cr, Zn, Mn, Ni e uma0.0 mg / kg (o lona uiga, o le toega aofaʻi o uamea uʻamea o le 1 * 10-7 tulaga). O le mea lea, e aveʻese siaki metala uʻamea i le galic acid o le saunia lea o le ki i le maualuga mama aʻiaʻi galur acid.


Taimi Post: Me-07-2021