I-P-Hydroxybenzaldehyde
Igama lemveliso: I-4-Hydroxybenzaldehyde
p-Hydroxybenzaldehyde;
PHBA;
Inombolo ye-CAS: 123-08-0
Ifomula yeMolekyuli: C7H6O2
Ubunzima Ezinto: 122.1213
Ifomula yolwakhiwo:
Ukuxinana: 1.226g / cm3
Sebenzisa:Kubalulekile imveliso yeekhemikhali entle kunye nophakathi ukuze kudityaniswe izinto eziphilayo, kusetyenziswe kakhulu amayeza, iaromatizer, i-pesticide, ielectroplating kunye necrystal fluid. Kushishino lwamayeza, inokusetyenziselwa ukudibanisa izinto eziphakathi ze-sulfonamides ezinje nge-TMP, i-ampicillin kunye ne-penicillin eyenziweyo (ngomlomo) kunye ne-d - (-) - p-hydroxy phenyl picramate. Kwimveliso ye-aromatizer, isetyenziswa ikakhulu kwi-raspberry ketone, methyl vanillin, ethyl vanillin, anisic aldehyde kunye ne-nitrile aromatizer. Kwimizi-mveliso yokubulala izitshabalalisi, isetyenziselwa ikakhulu ukwenza uhlobo lwesibulali zinambuzane, iherbicide, o-bromobenzonitrile kunye nehydroxyl casoron. Kwimveliso ye-electroplating, inokusetyenziselwa uhlobo olutsha lwe-cyanogens-free electroplating brightener.
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Isalathiso igama |
Ixabiso le-Index |
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Inkangeleko |
Ibakala le-Electron |
KwiBanga lezeMpilo |
Iziqholo iBakala |
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umgubo omhlophe wekristale |
Umgubo wekristale omthubi mthubi |
Umgubo wekristale omthubi mthubi |
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Ucoceko:% |
Iimali ezingama-99.8 |
99 |
99 |
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Ukufuma:% |
-0.3 |
-0.3 |
-0.5 |
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Indawo yokunyibilika: ℃ |
115.5 ~ 118 |
115 ~ 118 |
114.5 ~ 116.5 |
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Ikloridi: PPm |
50 |
50 |
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Isinyithi esinzima: PPm |
≤8 |
≤8 |
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Engenakunyibilika% |
0.0.05 |
0.0.05 |
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Zininzi iinkqubo zokuvelisa i-p-hydroxybenzaldehyde. Okwangoku, ukuveliswa kwemizi-mveliso ikakhulu kubandakanya iphenol, p-cresol, p-nitrotoluene kunye nezinye izinto ezingafunekiyo.
Inkqubo ye-phenol inokwahlulahlulwa ibe yiReimer Tiemann reaction, gattermann reaction, phenol Trichloroacetaldehyde indlela, phenol glyoxylic acid indlela, phenol formaldehyde indlela, njl. iindleko.
Inkqubo ye-p-nitrotoluene yokuvelisa i-p-hydroxybenzaldehyde ibandakanya amanyathelo amathathu: ukunciphisa i-oxidation, ukunciphisa i-diazotization kunye ne-hydrolysis.
I-3.P-cresol catalytic oxidation yinkqubo yokwenza i-oxidize ngqo kwi-p-cresol kwi-p-hydroxybenzaldehyde enomoya okanye ioksijini phantsi kwentshukumo ye-catalyst.
Inkqubo ethile yokuhamba ihamba ngolu hlobo lulandelayo: yongeza i-p-cresol, isodiyam hayidroksayidi kunye ne-methanol kwisitya soxinzelelo sentsimbi, yenza ingxuba de ichithakale ngokupheleleyo, yongeza i-cobalt acetate ukutywina i-reactor, nyusa iqondo lobushushu ukuya kuma-55 ℃ kwaye uqale ukwazisa ioksijini, gcina uxinzelelo kwisitya kwi-1.5MPa kwaye uphendule i-8-10h, lawula ngokungqongqo isantya sokuhamba kweoksijini kwinkqubo yokuphendula, kwaye ufake inkqubo yokupholisa iikhoyili kwisitya, xa ubushushu bonyuka, ibhatyi ye inqanawa iya kubonelelwa Amanzi okupholisa anokuqhagamshelwa. Ngeli xesha, i-coil iqala ukudityaniswa namanzi okupholisa, ilawule ngokungqongqo inani elipheleleyo leoksijini, kwaye igcine iqondo lobushushu kwiketile malunga ne-60℃. Ekupheleni kwempendulo, izinto zifakwa kwi-autoclave ephambili, i-solvent methanol iyaphuma iphinde iphinde iphinde iphinde iphinde iphinde iphinde iphinde iphinde iphinde iphinde iphinde iphinde isetyenziswe, kunye ne-hydrochloric acid yongezwa emva kokuba amanzi efakelwe i-salting out. Izinto eziqinileyo ezinamanzi zihluzwa yicentrifuge, kwaye okuqinileyo kufunyenwe kuyomiswa kwi-oveni yokupaka malunga nama-60℃ I-3-5h, emva koko i-p-hydroxybenzaldehyde enomxholo ongaphezulu kwe-98% inokufunyanwa.