Shaanxi Bloom Tech Co., Ltd. yog ib qho ntawm cov neeg tsim khoom thiab lwm tus neeg ntawm 3,4-pyridinedicarboxylic acid CAS 490-11-9 nyob hauv Suav teb. Txais tos rau kev lag luam wholesale ntau yam zoo tshaj 3,4-pyridinedicarboxylic acid CAS 490-11-9 rau muag ntawm no los ntawm peb lub hoobkas. Cov kev pabcuam zoo thiab tus nqi tsim nyog muaj.
3,4-pyridinedicarboxylic acidyog ib qho tsis muaj kob kom me ntsis daj cov khoom, feem ntau hauv cov muaju lossis hmoov. Nws tus lej cas yog 490 {- 11-9, nrog cov mis molecular c7h5no4. Nws muaj qee qhov solubility hauv dej thiab tuaj yeem tsim cov tshuaj nrog dej. Nws kuj tseem tuaj yeem yaj nyob rau qee cov kuab tshuaj organic. Cov qauv siv lead ua rau cov monoclinic system. Nws cov lattice tsis tuaj yeem txiav txim siab los ntawm cov txheej txheem xws li x-ray diffraction. Muaj ob pab pawg carboxyl, nws tuaj yeem sib cais los ua cov hydrogen ions thiab tswj lub ph in daws teeb meem. Cov khoom kho qhov muag yog cuam tshuam nrog lawv cov qauv. Nws muaj cov qhab sib nqus nyob rau hauv thaj chaw ultraviolet thiab tuaj yeem pom raws li qhov nqus tau cov spectrum nqus. Cov khoom thermal muaj peev xwm yuav cov yam ntxwv xws li kev ntsuas kub li thermogravetric (TGA). Thaum lub sij hawm cov txheej txheem cua sov, nws tuaj yeem yauv ua tsis zoo, lub cev qhuav dej, lossis lwm yam kev tawm tsam. Qee cov kev siv hauv cov neeg sawv cev sib txuas lus hlau nyuaj, tab sis cov ntawv thov no ua rau lawv qhov tseem ceeb hauv kev ua haujlwm hauv catalysis, cov khoom siv hluav taws xob, hluav taws xob hauv fluoronymers, thiab kev sib koom tes hlau.
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Tshuaj Cov Qauv |
C7h5No4 |
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Muaj pes tsawg leej |
167 |
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Molecular hnyav |
167 |
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m/z |
167 (100.0%), 168 (7.6%) |
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Kev Ntsuam Xyuas |
C, 50.31; H, 3.02; N, 8.38; O, 38.29 |
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3,4-pyridinedicarboxylic acid, raws li lub ion tooj liab txiav txim siab reagent, muaj ntau cov kev siv hauv tshuaj ntsuam xyuas tshuaj lom neeg, ib puag ncig cov ntaub ntawv, biomedical thiab lwm daim teb.
1. Hauv kev tiv thaiv tshuaj lom neeg
Hauv kev txheeb xyuas tshuaj lom neeg, nws yog dav siv rau kev txiav txim siab cov tooj liab ions vim nws lub peev xwm los tsim cov ruaj khov nrog tooj nkaws ntawm ions. Qhov ntsuas ntsuas no muaj qhov zoo ntawm kev ua haujlwm yooj yim, kev xaiv siab, thiab yog ib qho ntawm cov txheej txheem feem ntau siv hauv kev tsom xam tshuaj.
(1) Kev Ntsuam Xyuas Quantitative:
Los ntsuas ntsuas cov xim siv (xws li kev nqus tau) ntawm cov nyom ntawm cov tshuaj thiab tooj liab, kev ntsuas kim yuav ua tiav. Txoj kev no muaj feem xyuam rau ntau tus tooj liab muaj cov qauv, suav nrog cov kev daws teeb meem, thiab kuaj cov khoom siv roj.
(2) kev tshawb fawb kinetics:
Txoj kev tshawb fawb ntawm cov tshuaj tiv thaiv kination nrog tooj nkaws ions kuj yog qhov kev taw qhia tseem ceeb hauv kev tshuaj ntsuam xyuas tshuaj lom neeg. Los ntawm kev kawm cov tsis muaj xws li cov tshuaj tiv thaiv kab mob thiab cov kev tiv thaiv kev nkag siab ntawm cov cai lij choj ntawm kev nyuaj siab thiab muab kev ntsuas kev ntsuas kom pom kev ntsuas kev ntsuas.
2. Ib puag ncig cov teb saib xyuas
Hauv kev soj ntsuam ib puag ncig, cov ntsiab lus ntawm cov cim tooj liab yog ib qho ntawm cov ntsuas tseem ceeb rau kev ua kom muaj kuab paug xws li dej thiab av. Raws li tus tooj liab kev txiav txim siab reagent, nws muaj cov kev siv hauv qab no hauv kev soj ntsuam ib puag ncig:
(1) Kev Tswj Dej:
Los ntawm kev siv nws los ntsuas cov tooj liab ion cov ntsiab lus hauv dej lub cev, cov qib ntawm kev tiv thaiv dej tuaj yeem ntsuas tau, muab cov khoom siv hluav taws xob. Nyob rau tib lub sijhawm, cov qauv no kuj tseem siv tau los saib xyuas cov ntsiab lus tooj liab thiab lwm yam kom tsis txhob muaj kuab paug ib puag ncig.
(2) Kev Ntsuam Xyuas Av:
Cov ntsiab lus tooj liab ion hauv av kuj yog qhov ntsuas tseem ceeb rau kev ntsuam xyuas cov℃ntawm cov av muaj kuab paug. Los ntsuas ntsuas cov ntsiab lus tooj liab ion hauv av, cov pa phem ntawm cov av tuaj yeem nkag siab, muab cov ntaub ntawv txhawb nqa kev kho av thiab kev kho mob. Raws li tus tooj liab ion txiav txim siab reagent, nws tseem muaj cov ntawv thov kev cia siab hauv av saib xyuas.
3. Khoom siv science teb
Hauv kev tshawb fawb ntawm cov ntaub ntawv kev tshawb fawb, tooj liab lub luag haujlwm hauv kev xeb ntawm cov ntaub ntawv hlau, kev npaj ntawm cov khoom siv hlau, thiab cov synthesis ntawm cov ntaub ntawv tshiab. Raws li tus tooj liab kev txiav txim siab reagent, nws muaj cov kev siv hauv qab no hauv cov khoom siv science:
(1) Kev tshawb fawb corrosion:
Los ntsuas cov ntsiab lus tooj liab ion ntawm cov ntaub ntawv hlau lossis hauv kev daws teeb meem, muab cov ntaub ntawv txhawb nqa rau cov ntaub ntawv kho mob. Raws li tus xov tooj rau kev txiav txim siab reident, nws muaj cov ntawv thov tseem ceeb hauv kev tshawb fawb hauv corrosion.
(2) catalyst npaj:
Tooj liab ions feem ntau siv los ua cov kev nquag los yog cov ntxiv hauv cov txheej txheem npaj ntawm catalysts. Los ntsuas ntsuas cov ntsiab lus tooj liab ion hauv cov ntsiab lus, cov kev ua tau zoo ntawm cov catalystosst, muab cov kev taw qhia rau qhov kev ua kom zoo thiab hloov kho ntawm catalyst. Raws li tus xov tooj rau kev txiav txim siab reident, nws tseem muaj cov ntaub ntawv thov kev cia siab hauv kev ua teb ntawm catalyst npaj.
4. Biomedical teb
Nyob rau hauv cov biomedical teb, tooj ions ua si lub zog tseem ceeb ntawm cov muaj sia, xws li koom nrog enzyme cov tshuaj tiv thaiv thiab tswj hwm ib txwm muaj kev ua haujlwm ntawm lub cev. Txawm li cas los xij, tus tooj liab ntau dhau kuj tuaj yeem ua rau puas tsuaj rau cov muaj sia. Yog li ntawd, ntsuas cov ntsiab lus tooj liab ion yog qhov tseem ceeb rau kev ntsuas kev noj qab haus huv thiab kab mob kev kuaj mob ntawm cov tsiaj muaj sia. Raws li tus tooj liab ion txiav txim siab reagent, nws muaj cov kev siv hauv qab no hauv cov ntawv biomedical:
(1) Kev kuaj ntshav:
Los ntsuas ntsuas cov ntsiab lus tooj liab ion ntawm tib neeg lub cev tuaj yeem raug ntsuas rau kev kuaj mob thiab kho cov qauv ntawm tooj liab metabolism tsis sib haum.
(2) Kev Tshawb Fawb Kev Tshawb Fawb:
Hauv Biomedical kev tshawb fawb, nws yog feem ntau tsim nyog los tshawb xyuas cov ntsiab lus tooj liab lub ntsiab lus kom nkag siab txog lawv cov chaw xa tawm thiab metabolism hauv cov kab mob. Raws li tus xov tooj rau kev txiav txim siab reident, nws tuaj yeem siv rau kev txiav txim siab cov ntsiab lus tooj liab, muab cov ntaub ntawv kev tshawb fawb tseem ceeb rau kev tshawb fawb biomedical.
Kev Tshawb Nrhiav Teb ntawm supramolecular Chemistry
Ob pawg carboxyl hauv 3,4 {- pyridine muaj cov pa hluav taws xob, uas tuaj yeem ua raws li cov neeg ua haujlwm hauv tsev sib txuas lus nrog cov ntawv sib txuas lus nrog hlau ions. Los ntawm kev xaiv cov hlau erions tsim nyog, hlau orgiic supamolecular systems system nrog cov qauv tshwj xeeb thiab cov haujlwm tuaj yeem tsim kho. Hauv txoj kev tshawb no, Bacl ₂ 2 ₂ O thiab Ligand 3,4 {} pyrdinedioic acid tau los ua cov nyom hauv qab}, 4 {} pyridinedioic acid). Cov khoom muaju tau tsim muaju los ntawm tib lub crystal x- tshav poov, thiab ft- ir. Cov txiaj ntsig tau pom tias ba ¹ thiab ba ² saws lub geometric configurations ntawm yim sib koom tes thiab kaum txoj kev sib koom tes ua ke, feem. Tag nrho PDC ⁻ tau ua plaub tus hniav ua kom sib txawv ntawm cov qauv plaub (II) ASTRS los ua ob-seem network ua ke los ua ib qho kev sib tw uas peb-seem. Cov hlau hluav taws xob organic no tsis tsuas yog muaj tus qauv tshwj xeeb thiab cov khoom siv hluav taws xob zoo, uas yuav muaj cov ntaub ntawv fluorescent thiab cov khoom siv kho kom zoo nkauj.
Koom nrog rau hauv lub supramolecular tus kheej -} kev sib dhos cov txheej txheem
Supramolecular tus kheej - Kev sib dhos los hais txog cov txheej txheem uas molecules ntom qauv los ntawm kev sib txuas lus tsis muaj kev sib cuam tshuam. Cov carboxyl thiab pyridine rings nyob rau hauv 3,4- pdca molecules tuaj yeem sib txuas nrog cov molecules los ntawm kev sib txuam ua hydrogen thiab {}} kev sib cuam tshuam. Piv txwv li, cov pab pawg carboxyl tuaj yeem tsim cov nplhaib hydrogen, thiab kev sib koom ua ke ntawm cov qauv molecules rau hauv supamolecular aggregates nrog cov qauv zoo nkauj thiab cov haujlwm tshwj xeeb. Cov qauv supramolular muaj peev xwm tseem ceeb rau cov ntawv thov hauv Nanomaterials, tshuaj tswj kev tso tawm, sensors, thiab lwm thaj teb. Piv txwv li, cov nanowires tsim los ntawm tus kheej-}}}}} Kev sib cais ntawm cov khoom siv hauv tshuab hluav taws xob, thiab cov pa las tuaj yeem siv tau ua cov khoom siv ntse rau cov tshuaj muab tshuaj tso tawm. Cov txheej txheem ntawm supramolecular tus kheej {14-}}} Enontent, thiab lwm yam los tswj cov txheej txheem ntawm tus kheej- kev sib dhos cov txheej txheem thiab supramolecular qauv. Lub Koom Haum Tus Kheej supramolular tus kheej koom tes nrog 3,4-PDCA muab cov txheej txheem yooj yim thiab muaj txiaj ntsig zoo rau kev npaj cov ntaub ntawv tshiab.
Cov kev qhia tshwj xeeb ntawm cov ntaub ntawv ntawm3,4-pyridinedicarboxylic acid:
(1) muab 750 g (5.55 mol) ntawm concentrated sulfuric acid thiab 1.4 g (0.175 mol) ntawm selenium hmoov rau ib tug selenium hmoov rau ib plaub} caj dab flask thiab tshav kub nws. Lub flask yog nruab nrog lub stirrer, tus pas ntsuas kub, lub tog raj kheej poob thiab cov roj loj loj loj. Thaum qhov ntsuas kub txog 275 degrees Celsius, qhov Selenium yog yaj nyob rau hauv concentrated sulfuric acid.
Dissolve 1 g (0.125 Mol) ntawm Selenium Hmoov nyob rau hauv 50 G (0.0 mol) ntawm cov sulfuric acid, txia mus rau cov sulfuric acid nrog rau cov dej ntws, ua kom qhov kub ntawm cov tshuaj tiv thaiv ntawm 270-280 degree.
Thaum siv cov pa dej thiab cov ntses sulf
Tom qab txog 2 l / 2 teev, tag nrho cov kev daws tau ntxiv dropwise thiab qhov kub tau tswj hwm nruab nrab ntawm270 - 280℃rau ib teev ntxiv. Tom qab txias qhov sib xyaw kom haum rau chav sov, ntxiv 400ml ntawm dej, ntxiv 5g ntawm cov hluav ncaig ua haujlwm thiab ua noj rau ob peb feeb.
Selenium thiab ua kom cov pa roj carbon tau lim, thiab cov txiv kab ntxwv txias - Cov kab laum daj tau ua tib zoo hloov kho ammonia.
(2) Ib tug 1-liter plaub lub caj dab flok tau nruab nrog lub deeper funnel, cov ntsuas cua kub nrog cov xuab zeb, thiab cov dej tso kua dej kom lom zem.
Qhov chaw 1.68 g ntawm cov vijtsam dub nyob rau hauv 46 ml ntawm concentrated daws thiab kub. H2SO4, ib tug yuav luag pob tshab Daj. Tom qab ntawd, nyob rau hauv vigering stirring thiab cua txias, 218 g ntawm isoquinoline (1.68 mol) tau ntxiv dropwise rau 925 g ntawm congical flask. Sulfuric acid (503 ml).
Ua ke ob txoj kev daws teeb meem npaj ua ke. Tom qab, 2.35 g ntawm cov xim dub selenium tau yaj nyob rau hauv 120 surgred C. Tom qab cov tsos ntawm lub ntsej muag ntshiab Qhov ntim ntawm cov kua hauv cov flascang tseem tsis hloov pauv, thiab kub sab hauv yuav tsum tsis txhob qis dua 265℃c (rau chaw cia khoom).
Tom qab ntxiv, do ntawm 270-280℃C rau 1.25 teev kom txo cov kuab tshuaj kom haum rau ib ncig ntawm chav kub thiab txias xim av zoo li kua hauv 660ml of ho.
Ntxiv 10 gram ntawm activated carbon mus rau cov kev daws teeb meem thiab cua sov kom muaj cov pa roj av, ncua rau hauv cov dej khov kho, thiab siv cov dej txias dua.
Qhuav cov tau kua qaub nyob rau hauv lub convection cub ntawm 110 degrees Celsius. Thaum kawg,3,4-pyridinedicarboxylic acidtau txais. Ntau lawm: 210 grams (75% ntawm kev tshawb xav). Recrystallization: dej. Lub taw tes melting yog 250-257 degrees.
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Cim npe nrov: 3,4-pyridinedicarboxylic acid CAS 490-11-9, cov chaw muag khoom, chaw tsim khoom, chaw tsim khoom, yuav khoom, khoom, rau muag