Maleic Acid Powder CAS 110-16-7

Maleic acid hmoov, tseem hu ua cis -butenedioic acid, yog cov organic dicarboxylic acid nrog cov tshuaj formula C4H4O4. Nws muaj nyob hauv qee cov txiv hmab txiv ntoo thiab cov nroj tsuag tab sis feem ntau yog tsim los ntawm oxidation ntawm butenes, tshwj xeeb tshaj yog butene-1 thiab butene-2. Qhov no tsis muaj kob, crystalline compound muaj ib tug txawv, acidic tsw thiab yog heev soluble nyob rau hauv dej thiab ntau yam organic solvents.

Cov qauv molecular nta plaub-carbon saw nrog ob pawg carboxyl (-COOH) nyob rau hauv cis configuration, txhais tau tias cov pa roj carbon - carbon ob daim ntawv cog lus thiab cov carboxyl pawg nyob rau tib sab ntawm cov molecule. Qhov kev teeb tsa no muab nws cov khoom tshwj xeeb, suav nrog nws lub peev xwm tsim esters, anhydrides, thiab ntsev.

Ntxiv mus, maleic acid yog siv nyob rau hauv zus tau tej cov chelate agents, uas pab tshem tawm cov hlau ions los ntawm kev daws teeb meem, thiab raws li ib feem nyob rau hauv lub formulation ntawm dyes thiab pigments. Nws versatility thiab dav siv underscore nws qhov tseem ceeb hauv kev lag luam tshuaj.

Ib qho ntawm cov kev siv tseem ceeb ntawmMalic acid hmoovyog nyob rau hauv kev tsim khoom ntawm polymaleic acid, ib tug polymer feem ntau siv nyob rau hauv kev kho dej vim nws zoo heev scale thiab corrosion inhibition zog. Nws kuj tseem ua haujlwm ua ntej rau kev sib txuas ntawm cov khoom siv tsis zoo polyester resins, uas pom kev siv hauv kev tsim cov fiberglass - cov khoom siv yas, txheej, thiab cov nplaum.

Polyamide resin, tseem hu ua nylon resin, yog ib hom siab -molecular- hnyav polymer uas muaj cov pab pawg amide rov hauv nws cov saw hlau macromolecular. Nws tuaj yeem tsim los ntawm polycondensation ntawm diamines thiab dibasic acids los yog los ntawm polymerization ntawm ib qho lactam molecule. Cov khoom siv yas ntau yam no khav theeb zoo heev thiab siv dav. Nws yog categorized rau hauv non-reactive (neutral) thiab reactive polyamides, nrog rau kev siv xws li inks, kub-melt adhesives, thiab coatings rau epoxy resin hardeners, binders, linings, thiab encapsulation / molding resins. Neutral polyamides yog tshwj xeeb tshaj yog haum rau luam ntawv ntawm cov yas zaj duab xis, thaum reactive polyamides excel li epoxy resin curing agents, imparting superior adhesion, yooj, thiab tshuaj tiv thaiv.

Thaum nws tus kheej tsis yog siv ncaj qha los tsim cov polyamide resins, nws cov derivatives thiab copolymer tuaj yeem ua lub luag haujlwm hauv kev hloov kho lossis txhim kho cov khoom ntawm polyamide resins. Polyamide resins yog ib chav kawm ntau yam ntawm cov polymers paub txog lawv cov khoom zoo heev, tshuaj lom neeg, thiab thermal stability. Kev sib koom ua ke ntawm cov txiv neej acid derivatives tuaj yeem hloov kho cov khoom no kom tau raws li cov kev thov tshwj xeeb.

Txawm li cas los xij, nws tsim nyog sau cia tias kev siv ncaj qha hauv polyamide resin synthesis tsis tshua muaj. Hloov chaw, cov kws tshawb fawb thiab cov tuam txhab lag luam feem ntau tsom mus rau kev tsim cov copolymers lossis grafted polymers uas muaj cov moieties, uas tuaj yeem siv los hloov cov polyamide resins los ntawm kev sib xyaw lossis tshuaj lom neeg.

Amide-anhydride copolymer yog ib chav kawm ntawm cov polymers siab heev uas muaj kev sib koom ua ke ntawm amide (–CONH–) thiab anhydride (–CO–O–CO–) kev sib txuas hauv lawv cov qauv molecular. Cov copolymers no muaj cov khoom tshwj xeeb uas tshwm sim los ntawm kev sib koom ua ke ntawm ob qho tib si cov khoom siv. Cov pab pawg amide pab txhawb kev txhim kho thermal stability, mechanical zog, thiab tsis kam mus rau hydrolysis, thaum cov pab pawg anhydride qhia reactivity thiab lub peev xwm rau cross-txuas, uas muaj peev xwm ntxiv tailoring khoom. Amide-anhydride copolymers pom cov ntawv thov hauv ntau qhov chaw xws li biomedical engineering, qhov twg lawv cov biodegradability thiab biocompatibility yog qhov zoo, nrog rau cov txheej txheem siab heev, cov nplaum, thiab daim nyias nyias vim lawv qhov kev ua tau zoo nyob rau hauv cov xwm txheej hnyav. Lawv cov khoom tunable ua rau lawv muaj ntau yam khoom siv rau cov kev daws teeb meem tshiab thoob plaws ntau qhov kev lag luam.

Maleic acid yog ncaj qha koom nrog hauv kev sib txuas ntawm amide-anhydride copolymers. Cov copolymer no feem ntau tau los ntawm copolymerizing nws (los yog nws daim ntawv anhydride) nrog ntau yam amides, xws li cov muab tau los ntawm cov amino acids los yog aliphatic diamines. Cov txiaj ntsig copolymer tau txais cov khoom ntawm ob qho tib si amide thiab anhydride moieties, ua rau cov khoom siv nrog cov khoom sib xyaw tshwj xeeb.

Kev tsim khoom ntawm amide -anhydride copolymer feem ntau cuam tshuam nrog cov tshuaj tiv thaiv copolymerization. Cov tshuaj tiv thaiv no tuaj yeem nqa tawm hauv ntau cov kuab tshuaj thiab nyob rau hauv cov tshuaj tiv thaiv sib txawv, nyob ntawm seb cov amide thiab anhydride monomers siv. Cov txheej txheem copolymerization tuaj yeem tswj tau kom ua tiav qhov xav tau copolymer muaj pes tsawg leeg thiab qhov hnyav molecular.

Qee zaum, cov tshuaj tiv thaiv grafting tuaj yeem ua haujlwm los qhia cov moieties mus rau lub caj qaum ntawm cov polymers uas twb muaj lawm, xws li polyolefins lossis polyamides. Cov txheej txheem grafting no tuaj yeem ua tiav los ntawm kev pib radical, cov tshuaj tiv thaiv catalytic, lossis lwm txoj hauv kev, nyob ntawm qhov tshwj xeeb polymer thiab cov tshuaj tiv thaiv.

Nrog rau txoj kev loj hlob sai ntawm tib neeg thiab kev siv ntau ntawm cov khoom siv petrochemical, cov peev txheej petrochemical tsis txuas ntxiv tau dhau los ua kev nyuaj siab. Kev siv cov thev naus laus zis tshiab thiab cov txheej txheem los tsim cov peev txheej tshiab tshiab los hloov cov peev txheej petrochemical uas tsis yog txuas ntxiv dua tshiab tau dhau los ua qhov teeb meem ceev kom daws tau. Cov peev txheej biomass yog ib yam ntawm cov peev txheej ntsuab txuas ntxiv nrog cov peev txheej ntau thiab muaj peev xwm siv tus nqi loj. Kev txhim kho thiab kev siv cov khoom siv biomass maj mam hloov kev siv cov peev txheej petrochemical, uas tau dhau los ua lub zog tseem ceeb ntawm ntau lub teb chaws.

Maleic acid hmoov yog ib qho tseem ceeb raw khoom nyob rau hauv ntau qhov chaw ntawm kev lag luam tshuaj. Raws li ib qho ntawm 12 cov khoom siv tshuaj tseem ceeb uas tau teev tseg los ntawm US Lub Chaw Haujlwm Hluav Taws Xob yav tom ntej, nws tau siv dav hauv cov resins, tshuaj, plasticizers, copolymer thiab cov tshuaj ua liaj ua teb, thiab tseem tuaj yeem siv los ua cov khoom nruab nrab ntawm lwm cov khoom siv tshuaj.

Tam sim no, txiv roj roj hmoov yog tsim los ntawm hydrolysis ntawm maleic anhydride, fossil roj. Maleic anhydride feem ntau tau txais los ntawm oxidation ntawm benzene, butane los yog butene, uas yog nyob ntawm ntau yam ntawm cov pob txha pob txha. Yog li ntawd, kev tsim tawm los ntawm maleic anhydride tsis tsuas yog ua rau lub siab ntawm ib puag ncig, tab sis kuj tseem ua rau lub teb chaws ruaj ntseg zog ntxiv. Yog li ntawd, kev sib txuas los ntawm cov khoom siv txuas ntxiv mus ntxiv biomass lossis biomass platform compounds tuaj yeem tsis tsuas yog txo qhov kev cia siab ntawm cov pob txha pob txha, tab sis kuj txhim kho qhov chaw ib puag ncig, uas muaj kev nyiam zoo.

► Organic Synthesis

Maleic acid ua hauj lwm ua ntau yam nruab nrab hauv cov organic synthesis, koom nrog ntau cov tshuaj tiv thaiv xws li esterification, amidation, thiab Diels-Alder cycloadditions. Nws cov derivatives, suav nrog cov txiv neej anhydride thiab cov txiv neej, yog siv dav hauv kev tsim cov polyester resins uas tsis muaj zog, uas yog cov khoom tseem ceeb ntawm fiberglass -cov khoom siv ntxiv, cov txheej, thiab cov nplaum. Maleic anhydride kuj yog ib qho tseem ceeb ua ntej rau kev sib txuas ntawm glyoxylic acid ntawm ozonolysis, cov tshuaj tiv thaiv nrog kev siv hauv kev lag luam tshuaj thiab agrochemical.

► Pharmaceutical Industry

Hauv kev lag luam tshuaj, cov txiv neej acid ua lub luag haujlwm tseem ceeb hauv kev tsim cov tshuaj ntau yam. Nws yog feem ntau siv los ua tus neeg sawv cev acidifying los kho cov pH ntawm cov tshuaj daws teeb meem, ua kom ruaj khov thiab bioavailability. Tsis tas li ntawd, maleic acid tsim cov ntsev nrog cov tshuaj yooj yim, txhim kho lawv cov solubility thiab nqus. Piv txwv li, maleic acid yog ua ke nrog chlorpheniramine los tsim maleic acid chlorpheniramine, ib qho tshuaj tiv thaiv kab mob siv los kho kev tsis haum tshuaj. Ib yam li ntawd, maleic acid nonylamine yog siv los ua tus neeg sawv cev antiemetic.

► Kev Lag Luam Khoom Noj

Txawm hais tias maleic acid nws tus kheej tsis tau txais kev pom zoo raws li cov khoom noj ntxiv, nws daim ntawv anhydride, maleic anhydride, tau tso cai rau siv tsawg hauv cov khoom ntim khoom noj hauv Tebchaws Meskas thiab European Union. Maleic anhydride tuaj yeem cuam tshuam nrog cawv los ua cov txiv neej, uas yog siv los ua emulsifiers thiab stabilizers hauv cov zaub mov tiav. Txawm li cas los xij, kev txhawj xeeb tau hais txog qhov muaj peev xwm tsiv teb tsaws ntawm cov txiv neej anhydride residues rau hauv cov khoom noj, ua rau muaj kev saib xyuas nruj.

► Agricultural Sector

Maleic acid pom cov ntawv thov hauv kev ua liaj ua teb ua tshuaj tua kab mob thiab cog kev loj hlob regulator. Nws muaj peev xwm inhibit qhov kev ua ntawm qee cov enzymes koom nrog hauv cov amino acid metabolism cuam tshuam kev loj hlob ntawm cov nroj tsuag thiab cov nroj tsuag tsis xav tau. Maleic acid kuj tseem siv rau hauv kev sib txuas ntawm cov tshuaj agrochemicals, xws li fungicides thiab tshuaj tua kab, pab tiv thaiv qoob loo thiab txhim kho cov qoob loo.

► Daim Ntawv Thov Kev Kho Hniav

Kev tshawb fawb tau tshawb fawb txog kev siv cov txiv neej acid hauv kev kho hniav raws li lwm txoj hauv kev rau phosphoric acid rau etching hniav enamel ua ntej kev sib txuas hniav orthodontic brackets. Cov kev tshawb fawb qhia tias 10% txiv neej acid tuaj yeem tsim cov txiaj ntsig zoo sib xws rau 37% phosphoric acid thaum muaj peev xwm txo qis cov ntxhia los ntawm cov enamel nto. Txawm li cas los xij, kev siv dav dav ntawm maleic acid hauv kev kho hniav tseem txwv vim muaj kev txhawj xeeb txog nws lub sijhawm ntev - cuam tshuam rau cov qauv hniav.

Qhov kev thov rau maleic acid yuav tsum loj hlob nyob rau hauv lub xyoo tom ntej, uas tau tsav los ntawm nws cov ntaub ntawv nthuav dav hauv kev lag luam tawm tshiab xws li lub zog tauj dua tshiab thiab cov khoom siv biodegradable. Kev siv zog tshawb fawb tau tsom mus rau kev tsim cov txheej txheem kev sib xyaw ntsuab rau cov txiv neej acid, siv bio-raws li feedstocks thiab catalytic systems nrog txo kev cuam tshuam ib puag ncig. Tsis tas li ntawd, kev tshawb nrhiav tshiab derivatives thiab functionalized maleic acid tebchaw tuav cov lus cog tseg rau kev tsim cov khoom siv siab heev nrog cov khoom zoo.

Maleic acid, nrog rau cov tshuaj formula C ₄ H ₄ O ₄, yog ib tug dawb crystalline hmoov nrog ib tug qaug zog qaub saj thiab pungent tsw. Raws li ib qho tseem ceeb organic acid, maleic acid muaj ntau daim ntawv thov nyob rau hauv kev lag luam, khoom noj khoom haus, tshuaj thiab lwm yam teb, xws li nyob rau hauv zus tau tej cov unsaturated polyester resins, tshuaj tua kab, dyes, zaub mov additives, thiab lwm yam. Txawm li cas los xij, cov hmoov txiv neej acid tuaj yeem ua rau muaj ntau yam tsis zoo rau tib neeg lub cev thaum siv, nrog rau ntau yam hauv nruab nrog cev xws li daim tawv nqaij, qhov muag, ua pa, thiab digestive system. Thaum mob hnyav, nws yuav ua rau muaj kev phom sij rau lub neej.

Cim npe nrov: Malic acid hmoov CAS 110-16-7, lwm tus neeg, manufacturers, hoobkas, lag luam wholesale, yuav, nqe, tej, kev muag khoom