Shaanxi BLOOM Tech Co., Ltd. yog ib tug ntawm cov uas paub txog manufacturers thiab lwm tus neeg ntawm trimellitic acid cas 528-44-9 nyob rau hauv Suav teb. Txais tos rau cov lag luam wholesale bulk zoo trimellitic acid cas 528-44-9 muag ntawm no los ntawm peb lub hoobkas. Kev pabcuam zoo thiab tus nqi tsim nyog muaj.
1,2,4-Benzoic acid, tseem hu uatrimellitic acid(rimelliticaci), 1,2,4-Benzenetricarboxylic acid, nrog rau cov mis molecular C9H6O6, CAS 528-44-9, Nws yog ib qho tseem ceeb organic tshuaj, feem ntau nyob rau hauv daim ntawv ntawm dawb crystals los yog dawb hmoov / loj blocks. Nws yog ib yam khoom uas nyuaj rau yaj hauv dej, tab sis nws cov solubility yog txwv ntawm ib qho kub. Tshwj xeeb, ntawm 25 degree, solubility ntawm rimelliticaci hauv dej yog kwv yees li 2.1g / 100mL. Qhov no qhia tau hais tias nyob rau hauv chav tsev kub, solubility nyob rau hauv dej yog tsawg, tab sis nyob rau hauv tej yam kev mob (xws li cua sov los yog ntxiv cosolvents), nws solubility yuav nce.
Piv nrog rau nws solubility hauv dej, nws muaj solubility zoo dua nyob rau hauv tej yam organic solvents. Piv txwv li, rimelliticaci yog yooj yim soluble nyob rau hauv ethanol thiab dimethylformamide, soluble nyob rau hauv acetone, me ntsis soluble nyob rau hauv ethyl acetate, tab sis yuav luag insoluble nyob rau hauv benzene, chloroform, thiab carbon disulfide. Qhov sib txawv ntawm solubility no tso cai rau kom muaj txiaj ntsig zoo thiab kev sib cais hauv cov tshuaj lom neeg thiab cov txheej txheem purification los ntawm kev xaiv cov kuab tshuaj uas tsim nyog.
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Tshuaj Formula |
C9H6O6 |
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Exact Mass |
210 |
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Molecular Luj |
210 |
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m/z |
210 (100.0%), 211 (9.7%), 212 (1.2%) |
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Elemental Analysis |
C, 51.44; H, 2.88; O, 45.68 |
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TMA, tseem hu uatrimellitic acid, yog ib qho tseem ceeb organic tshuaj. Nws cov ntawv thov tseem ceeb yog qhov dav, npog ntau qhov chaw lag luam.
Rimelliticaci nta peb symmetrical, heev reactive carboxyl pawg nyob rau hauv nws cov qauv molecular, ua ke nrog ib tug ruaj khov aromatic nplhaib qaum. Nws tuaj yeem ua rau muaj ntau yam tshuaj lom neeg xws li esterification, dehydration polycondensation, kev sib koom ua ke polymerization thiab hloov kho crosslinking. Raws li lub hauv paus tseem ceeb nruab nrab, rimelliticaci ua haujlwm rau cov khoom siv tshuaj zoo, cov khoom siv polymer, cov txheej txheem siab -kawg, hluav taws xob thiab hluav taws xob engineering, cov ntaub ntawv sib xyaw thiab txiav- cov ntaub ntawv qib siab. Nws muab cov tshuaj sib xyaw ua ke ua kom pom qhov ua tau zoo ntawm cov cua sov, hluav taws xob rwb thaiv tsev, tiv thaiv - kev ua haujlwm ntawm kev tsiv teb tsaws, huab cua tsis kam thiab kev ruaj ntseg txhua yam, uas them rau kev ua haujlwm tsis zoo ntawm cov khoom tsim los ntawm cov khoom siv tshuaj lom neeg.
Ua tau zoo nrog ntau yam kev lag luam siab -tus qauv kev lag luam xws li hwm kev lag luam tsim khoom, eco- cov ntaub ntawv tshiab tus phooj ywg thiab cov khoom siv hluav taws xob precision, rimelliticaci tau dhau los ua cov khoom tseem ceeb tseem ceeb hauv cov khoom siv niaj hnub zoo tshuaj lom neeg los ntawm kev tsim txiaj ntawm nws cov qauv zoo thiab muaj peev xwm hloov kho ntau yam. Nws daim ntawv thov kev ua lag luam scenarios txuas ntxiv, nrog cov nqi lag luam nce tsis tu ncua.
Kev npaj ntawm siab -kub resistant premium plasticizers sawv cev rau rimelliticaci lub hauv paus thiab loj tshaj - daim ntawv thov ntim. Rimelliticaci reacts nrog polyols xws li octanol, isooctanol thiab butanol ntawm esterification los ua ke ntawm cov qib siab -kawg plasticizers xws li trioctyl trimellitate, triisooctyl trimellitate thiab tributyl trimellitate. Piv nrog rau cov pa dav dav- lub hom phiaj phthalate plasticizers, trimellitate plasticizers muaj peb - qhov ntev stereoscopic molecular qauv nrog muaj zog crosslinking muaj peev xwm, xa cov tseem ceeb tiv thaiv kub, volatilization, tsiv teb tsaws thiab rho tawm.
Lub caij no, lawv tsis yog - lom, tsis muaj ntxhiab thiab ib puag ncig, ua tau raws li cov qauv hauv tsev thiab thoob ntiaj teb ib puag ncig rau siab - cov ntaub ntawv kawg. Xws li plasticizers tuaj yeem nce qhov ntev -lub sij hawm kev pabcuam kub ntawm cov khoom yas siab tshaj 105 degree, deb tshaj qhov ntsuas kub ntawm cov khoom siv yas zoo tib yam. Lawv tsis tshua muaj volatilize, precipitate los yog leach nyob rau hauv siab -kub, siab -pressure thiab ntub dej, thiab txhawb nqa lub elasticity thiab mechanical zog ntawm cov ntaub ntawv yas nyob rau hauv lub sij hawm ntev kev pab cuam.
Tam sim no, lawv tau dav siv nyob rau hauv siab - kub insulating sheaths rau cov xov hlau thiab cables, tshav kub- resistant sab hauv plastics rau tsheb, yas accessories nyob ib ncig ntawm lub engine, sterile kho mob cov khoom, khoom noj khoom haus- qib ntim zaj duab xis thiab yas vaj tse ntawm cov khoom siv hauv tsev zoo tshaj. Nyob rau hauv cov hlau thiab cable4} kev lag luam siab siab, lawv yog cov khoom siv yas siab heev. nplaim taws- cov kab hluav taws xob tsis zoo, kev xaim hluav taws xob aerospace thiab siab - cov hluav taws xob hluav taws xob ntawm cov tsheb tshiab, ua kom muaj txiaj ntsig zoo rau kev ua haujlwm cable thiab txhim kho kev nyab xeeb kev ua haujlwm. Nyob rau hauv pej xeem cov ntaub ntawv yas, lawv hloov cov tsoos tshuaj lom plasticizers thiab txhawb nqa cov khoom 'ib puag ncig qib thiab kev pabcuam ruaj khov.
Rau siab -kev ua tau zoo resins thiab muaj txheej txheem,trimellitic acidUa raws li lub luag haujlwm tseem ceeb monomer rau hloov pauv polyester resins, alkyd resins, hmoov txheej resins thiab unsaturated polyester resins. Pa resins raug kev txom nyem xws li tsis tshua muaj crosslink ceev, tsis muaj zog adhesion, tsis zoo huab cua tsis kam thiab susceptibility rau corrosion thiab laus. Tom qab qhia txog cov qauv tricarboxyl ntawm rimelliticaci, crosslink ntom ntom ntawm resin molecules tau nce siab heev, tsim kom muaj kev sib cog lus thiab ruaj khov peb-sib nqus network thaum kho. Qhov no tseem ceeb txhim kho cov resins 'kho lub zog, adhesion, corrosion kuj, UV tsis kam thiab thermal stability.
Alkyd resins hloov nrog rimelliticaci yield xim zaj duab xis nrog siab hardness, superior gloss thiab muaj zog tiv taus acid thiab alkali yaig. Lawv ua haujlwm raws li cov ntaub ntawv tseem ceeb rau hnyav-lub luag haujlwm muaj los tiv thaiv- xeb txheej, steel choj txheej, huab cua- tiv thaiv sab nrauv architectural xim thiab topcoats rau kev tsim kho tshuab. Cov txheej txheej tshwm sim tuaj yeem tiv taus ntev - lub sij hawm yaig los ntawm cua, nag, ultraviolet rays thiab chemical media, ua rau lub neej ntev ntawm cov khoom siv thiab cov tsev. Saturated polyester resins synthesized los ntawm rimelliticaci yog tsim rau kev tsim electrostatic txau hmoov txheej.
Lawv yog hnyav-dawb nrog xoom volatile emissions thiab eco-tus phooj ywg, featuring ceev curing nqi, uniform thiab tag nrho cov xim films tsis muaj pinhole defects. Lawv tau siv dav hauv txheej txheej txheej txheem rau cov rooj tog zaum kho vajtse, cov khoom siv hauv tsev, qhov chaw pib thiab cov tshuab precision.Meanwhile, hloov unsaturated polyester resins ntaus ib qho zoo heev tshuav nyiaj li cas ntawm rigidity thiab toughness nrog muaj zog tshav kub thiab hnav tsis kam. Lawv yog siv rau fabricating fiberglass anti- khoom siv corrosion, cua turbine hniav, muaj pwm thiab lub teeb yuag aerospace Cheebtsam, txaus siab rau kev ua tau zoo yuav tsum tau rau siab - khoom tsim.
Hauv kev lag luam ntawm cov nplaum nplaum zoo thiab cov ntaub ntawv sib khi, rimelliticaci tuaj yeem hloov kho los ntawm polycondensation los tsim cov siab -kev ua haujlwm kub-melt adhesives, epoxy structural adhesives, polyurethane sealants thiab siab - kub resistant anaerobic adhesives. Ib txwm siv cov nplaum nplaum feem ntau raug kev txom nyem xws li yooj yim debonding ntawm qhov kub thiab txias, huab cua tsis zoo, tsis muaj zog sib txuas thiab tsis muaj zog rau kev laus thiab tawg.
Adhesives hloov kho nrog rimelliticaci nce rhiab heev txhim kho molecular structural stability, endowed nrog haib interfacial bonding quab yuam, siab - kub stability thiab tsis kam mus rau nruab nrab corrosion. Lawv tuav ruaj khov kev ua tau zoo nyob thoob plaws qhov kub ntawm ntau yam ntawm -40℃txog 180 degree, nrog rau kev ua haujlwm zoo rau cov kua qaub, alkalis, roj stains thiab av noo. Cov nplaum nplaum zoo li no tau siv dav hauv qhov siab - kawg qhov xwm txheej suav nrog kev ntim khoom ntawm cov khoom siv hluav taws xob zoo, kev sib txuas ntawm cov roj teeb hluav taws xob tshiab, lamination ntawm lub tsheb lub cev thiab qhov chaw, splicing ntawm cov khoom siv hauv tsev qib siab thiab kev sib khi ntawm cov khoom siv dav hlau.
Tsis tas li ntawd, sealants npaj los ntawm rimelliticaci khav theeb zoo elasticity thiab sealing kev ua tau zoo, muaj feem xyuam rau waterproof sealing ntawm industrial pipelines, siab hlab ntsha thiab cov khoom siv hauv tsev. Lawv daws kev lag luam- cov kev sib tw thoob plaws ntawm qhov siab - kub tsis ua hauj lwm thiab kev laus cov dej ntws pom hauv cov khoom siv sib khi ua ke, ua rimelliticaci yog ib qho tseem ceeb ntawm kev hloov kho raw khoom rau cov khoom zoo sealing.
Hauv kev txiav -ntev cov ntaub ntawv tshiab thiab tshuaj zoo, daim ntawv thov tus nqi ntawmtrimellitic acidtau tshawb nrhiav thiab hloov kho tas li. Raws li ib tug raug multidentate aromatic organic ligand, rimelliticaci tuaj yeem koom tes nrog cov hlau ions xws li zirconium, hafnium, tooj liab thiab zinc los tsim cov hlau -organic moj khaum (MOF) cov ntaub ntawv tsim los ntawm cov qauv ruaj khov, thaj chaw loj tshwj xeeb thiab cov pores. Cov ntaub ntawv ua haujlwm tshiab no nthuav tawm cov kev ua tau zoo hauv cov pa roj adsorption, kev sib cais, catalysis thiab lub zog cia, tuav cov ntawv thov dav dav hauv thaj chaw pem hauv ntej suav nrog carbon dioxide ntes, kev kho cov roj khib nyiab, siab - purity gas sib cais, organic synthesis catalysis, cov tshuaj tso tawm thiab lub zog cia cov ntaub ntawv.
Lawv tau dhau los ua cov ntaub ntawv nrov rau kev tshawb fawb thiab kev loj hlob tshiab tam sim no. Hauv kev tsim tshuaj lom neeg zoo, rimelliticaci yog ib qho nruab nrab los hloov cov xim, inks, dej kho additives thiab lwm yam khoom. Los ntawm kev ua kom zoo ntawm cov qauv molecular, rimelliticaci txhim kho dyes 'xim ceev, ntxuav tsis kam thiab lub teeb nrawm, ua kom cov ntaub ntawv luam tawm thiab cov khoom dyeing khaws cov xim ruaj khov yam tsis muaj fading yooj yim.
Hloov kho dej kho additives muaj zog chelating, dispersing thiab flocculating muaj peev xwm, ua kom muaj peev xwm kho dej khib nyiab los ntawm adsorption ntawm hnyav hlau ions thiab cov organic pollutants. Tsis tas li ntawd, rimelliticaci tuaj yeem tsim cov khoom siv insulating impregnating varnishes thiab siab -kub resistant insulating cov ntaub ntawv, dav siv nyob rau hauv rwb thaiv tsev tiv thaiv rau lub hwj chim transformers thiab siab -voltage hluav taws xob cov cuab yeej, ntxiv expanding nws Scope ntawm industrial daim ntaub ntawv.
TMA, tseem hu ua rimelliticaci, yog ib qho tseem ceeb ntawm cov khoom siv organic nrog cov khoom siv tshuaj lom neeg thiab ntau yam kev siv.
Rimelliticaci muaj peb pawg carboxyl (- COOH) hauv nws cov molecule, uas muab rimelliticaci muaj zog acidity. Carboxyl pawg yog ib pawg neeg ua haujlwm zoo uas tuaj yeem koom nrog ntau yam tshuaj lom neeg, xws li esterification, acylation, thiab decarboxylation. Cov tshuaj tiv thaiv no muab dav daim ntawv thov kev cia siab rau lawv cov synthesis ntawm lwm cov organic tshuaj thiab kev npaj cov khoom siv.
Vim lub siab reactivity ntawm carboxyl pawg nyob rau hauv nws cov qauv molecular, rimelliticaci tuaj yeem raug tshuaj lom neeg nrog ntau yam tshuaj. Piv txwv li, nws tuaj yeem raug esterification cov tshuaj tiv thaiv nrog cawv los tsim cov tshuaj ester sib xws; Nws tseem tuaj yeem raug acylation cov tshuaj tiv thaiv nrog cov tshuaj amine los tsim cov tshuaj amide. Cov tshuaj tiv thaiv no tsis tsuas yog txhawb cov khoom siv tshuaj lom neeg xwb, tab sis kuj tseem muaj peev xwm ua tau ntau dua rau lawv cov kev siv hauv cov organic synthesis thiab cov khoom siv npaj.
Nws muaj qee qhov thermal stability nyob rau hauv cov cua kub. Txawm li cas los xij, ntawm qhov kub thiab txias, rimelliticacimay raug decomposition lossis decarboxylationreactions, tsim cov kua qaub anhydrides lossis cov khoom carbon dioxide. Cov yam ntxwv ntawm thermal stability no tseem ceeb heev rau kev nkag siab txog nws tus cwj pwm nyob rau hauv qhov kub thiab txias thiab nws daim ntawv thov nyob rau hauv kev npaj ntawm high - cov ntaub ntawv kub.
Trimellitic acidyog ib qho tseem ceeb uas muaj ntxhiab tricarboxylic acid. Nws cov khoom noj tseem ceeb yog pseudocumene (1,2,4-trimethylbenzene), thiab rimelliticaci yog tsim los ntawm kev tswj oxidation ntawm peb pawg methyl ntawm lub nplhaib benzene. Tam sim no, cov txheej txheem hluav taws xob tseem ceeb poob rau hauv ob pawg: hydrogen nitrate oxidation thiab kua-theem cua catalytic oxidation, ntxiv los ntawm kev kuaj ntsuas cov poov tshuaj permanganate oxidation.
Tag nrho cov txheej txheem yog ua raws li cov ntsiab lus tseem ceeb ntawm cov txheej txheem oxidation ntawm methyl pawg rau hauv pawg carboxyl. Ntawm lawv, kua -theem cua catalytic oxidation tau dhau los ua cov txheej txheem tsim khoom tseem ceeb ua tsaug rau nws cov phooj ywg ib puag ncig, kev ua haujlwm siab thiab cov nqi qis.
Hydrogen nitrate oxidation yog cov txheej txheem kev lag luam ib txwm muaj nrog cov thev naus laus zis paub tab thiab tswj tau zoo heev. Txoj kev no txais yuav dilute nitric acid raws li oxidant tsis muaj catalysts ntxiv, thiab cov tshuaj tiv thaiv tshwm sim hauv ob theem.
Nyob rau hauv thawj theem, qhov kub thiab txias yog tswj ntawm 180℃nyob rau hauv lub siab ntawm 1.5-3.0 MPa; qis-concentration hydrogen nitrate ib nrab oxidizes methyl pawg ntawm pseudocumene los tsim cov khoom nruab nrab. Nyob rau theem thib ob, qhov kub thiab txias tau nce mus rau 200℃thiab qhov siab tau nce mus rau kwv yees li 3.9 MPa kom ntxiv dag zog rau oxidation thiab tag nrho hloov cov methyl pawg mus rau hauv pawg carboxyl.
Cov txheej txheem no muab cov khoom siv raw khoom hloov pauv siab thiab ruaj khov cov khoom purity, tab sis nws dais cov teeb meem pom tseeb: cov tshuaj tiv thaiv ua rau muaj nitrogen loj heev - muaj cov dej khib nyiab thiab cov roj pov tseg, ua rau cov khoom siv hnyav corrosion thiab ua rau cov nqi kho ib puag ncig siab. Tam sim no, tsuas yog ib qho me me ntawm cov kab ntau lawm tseem tau txais txoj hauv kev no, uas tau maj mam dhau mus thiab hloov los ntawm cov txheej txheem tshiab.
Kua-theem cua catalytic oxidation sawv cev rau cov txheej txheem ntsuab ntsuab niaj hnub no. Rimelliticaci siv huab cua ua cov oxidant, sib xyaw cobalt -manganese ntsev system ua cov catalyst, thiab acetic acid ua cov kuab tshuaj ua kom tiav oxidation nyob rau hauv me me kev ua haujlwm ntawm 150-160℃thiab 3.0-3.5 MPa.
Tau txais txiaj ntsig los ntawm kev sib koom ua ke ntawm cov khoom siv sib xyaw ua ke, cov txheej txheem no tau tswj hwm tus nqi oxidation ntawm methyl pawg kom tsis txhob overoxidation los yog tsis tiav oxidation, yog li boosting raw khoom siv.
Piv nrog hydrogen nitrateoxidation, nws ua tsis muaj nitrogen- muaj cov pa phem, ua rau cov khoom siv me me corrosion, ua rau qis qis rau peb-kev kho cov khib nyiab, thiab muaj cov tshuaj tiv thaiv qis dua thiab cov nqi tsim khoom. Tom qab cov tshuaj tiv thaiv, siab -purity rimelliticaci nrog purity tshaj 99% tuaj yeem tau los ntawm kev ua kom txias crystallization, pom thiab recrystallization purification.
Txoj kev kuaj poov tshuaj permanganate oxidation ua haujlwm nyob rau hauv cov mob me me nrog kev ua haujlwm yooj yim, tab sis rimelliticaci raug kev txom nyem los ntawm cov nqi oxidant siab heev thiab cov khoom lag luam qis. Rimelliticaci tsuas yog tsim rau me me - batch laboratory npaj thiab tsis tuaj yeem scaled mus rau industrial ntau lawm. Zuag qhia tag nrho, kev ua kom zoo dua qub thiab kho dua tshiab ntawm cov txheej txheem oxidation catalytic yog qhov tseem ceeb lav rau kev ua haujlwm zoo thiab eco- phooj ywg tsim khoom ntawm rimelliticaci.
FAQ
TMA siv rau dab tsi?
TMA yog cov kua qaub anhydride siv dav hauv cov chaw tsim khoomlos tsim cov xim, varnishes, thiab plastics.
TMA yog dab tsi?
TMA, tseem hu ua benzene-1,3,5-tricarboxylic acid, yogib qho organic compound nrog formula C6H3(CO2H)3. Nws yog ib qho ntawm peb isomers ntawm benzenetricarboxylic acid. Cov khoom tsis muaj xim, trimesic acid muaj qee qhov kev lag luam muaj txiaj ntsig raws li qhov ua ntej rau qee cov plasticizers.
Tus qauv ntawm trimellitic acid yog dab tsi?
Trimellitic acid (benzene-1,2,4-tricarboxylic acid) yog cov tshuaj sib xyaw nrog cov mis molecularC6H3(СООН)3. Zoo li lwm cov isomers ntawm benzenetricarboxylic acid, trimellitic acid yog cov khoom tsis muaj xim. Nws yog npaj los ntawm oxidation ntawm 1,2,4-trimethylbenzene.
Dab tsi yog cov ntawv thov ntawm TMA?
Tshwj xeeb, TMA yogsiv nyob rau hauv zus tau tej cov polyester resins rau coatings, composites, thiab films. Cov ntaub ntawv no muaj lub zog siab, ua haujlwm kub zoo, thiab tshuaj lom neeg ruaj khov, ua rau lawv zoo tagnrho rau kev thov hauv tsheb, aerospace, thiab electronics industries.
Cim npe nrov: Trimellitic Acid CAS 528-44-9, lwm tus neeg, manufacturers, hoobkas, lag luam wholesale, yuav, nqe, tej, kev muag khoom