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Ethyl N-acetyl-N-butyl-β-alaninate CAS: 52304-36-6
BAAPE yog ib qho dav-spectrum, muaj txiaj ntsig zoo tshuaj tua kab uas tua yoov, ntshauv, ntsaum, yoov tshaj cum, kab laum, midges, gadflies, ca fleas, xuab zeb fleas, xuab zeb midges, sandflies, cicadas, thiab lwm yam. Repellent effect; nws cov nyhuv repellent kav ntev thiab tuaj yeem siv rau hauv cov huab cua sib txawv. Nws yog chemically ruaj khov nyob rau hauv cov kev mob ntawm kev siv thiab muaj siab thermal stability thiab siab hws kuj. BAAPE muaj kev sib raug zoo nrog cov khoom siv tshuaj pleev ib ce thiab tshuaj. Nws tuaj yeem ua rau kev daws teeb meem, emulsions, tshuaj pleev, coatings, gels, aerosols, yoov tshaj cum, microcapsules thiab lwm yam tshwj xeeb tshuaj tua kab mob, thiab tseem tuaj yeem muab ntxiv rau lwm yam khoom. Los yog hauv cov ntaub ntawv (xws li dej tso quav, dej tshuaj yoov tshaj cum), kom nws muaj cov tshuaj tua kab mob.
BAAPE muaj qhov zoo ntawm tsis muaj tshuaj lom rau ntawm daim tawv nqaij thiab cov mucous daim nyias nyias, tsis muaj kev ua xua, thiab tsis muaj daim tawv nqaij permeability.
Properties: Colorless to light yellow transparent kua, ib qho tshuaj yoov tshaj cum. Piv nrog rau cov tshuaj yoov tshaj cum (DEET, feem ntau hu ua DEET), nws muaj cov yam ntxwv tseem ceeb ntawm cov tshuaj lom neeg tsawg, tsis tshua muaj khaus, thiab lub sij hawm ntev dua. , ib qho khoom siv zoo tshaj plaws rau cov tshuaj yoov tshaj cum.
Dej-soluble repellent (BAAPE) tsis zoo dua li DEET ib txwm siv tshuaj tua yoov tshaj cum. Txawm li cas los xij, hauv kev sib piv, DEET (IR3535) yog qhov tsis tshua muaj khaus thiab tsis muaj tawv nqaij nkag mus.
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2-Methoxyethanol CAS 109-86-4
Ethylene glycol monomethyl ether (lub npe hu ua MOE), tseem hu ua ethylene glycol methyl ether, yog cov kua tsis muaj xim thiab pob tshab, miscible nrog dej, cawv, acetic acid, acetone thiab DMF. Raws li cov kuab tshuaj tseem ceeb, MOE tau dav siv los ua cov kuab tshuaj rau ntau yam roj, cellulose acetates, cellulose nitrates, cawv-soluble dyes thiab hluavtaws resins.
Nws tau txais los ntawm cov tshuaj tiv thaiv ntawm ethylene oxide thiab methanol. Ntxiv methanol rau boron trifluoride ether complex, thiab dhau hauv ethylene oxide ntawm 25-30 ° C thaum nplawm. Tom qab ua tiav, qhov ntsuas kub tau nce mus rau 38-45 ° C. Cov tshuaj tiv thaiv tshwm sim yog kho nrog potassium hydrocyanide- Neutralize cov tshuaj methanol rau pH = 8-Chemicalbook9. Rov qab kho methanol, distilled nws, thiab sau cov feem ua ntej 130 ° C kom tau cov khoom nyoos. Tom qab ntawd ua cov fractional distillation, thiab sau cov 123-125 ° C feem raws li cov khoom tiav. Hauv kev tsim khoom lag luam, ethylene oxide thiab anhydrous methanol tau hnov mob ntawm qhov kub thiab txias yam tsis muaj catalyst, thiab cov khoom lag luam siab tuaj yeem tau txais.
Cov khoom no yog siv los ua cov kuab tshuaj rau ntau yam roj, lignin, nitrocellulose, cellulose acetate, cawv-soluble dyes thiab hluavtaws resins; raws li ib tug reagent rau kev txiav txim ntawm hlau, sulfate thiab carbon disulfide, raws li ib tug diluent rau coatings, thiab rau cellophane. Nyob rau hauv lub ntim sealers, ceev-drying varnishes thiab enamels. Nws kuj tseem siv tau los ua tus neeg sawv cev nkag mus thiab qib tus neeg sawv cev hauv kev lag luam dyeing, los yog ua cov yas yas thiab ci ci. Raws li qhov nruab nrab hauv kev tsim cov organic tebchaw, ethylene glycol monomethyl ether feem ntau yog siv rau hauv kev sib txuas ntawm acetate thiab ethylene glycol dimethyl ether. Nws tseem yog cov ntaub ntawv raw khoom rau kev tsim cov bis (2-methoxyethyl) phthalate plasticizer. Kev sib xyaw ntawm ethylene glycol monomethyl ether thiab glycerin (ether: glycerin = 98: 2) yog cov tub rog dav hlau roj ntxiv uas tuaj yeem tiv thaiv icing thiab kab mob corrosion. Thaum ethylene glycol monomethyl ether yog siv los ua lub dav hlau roj antisizing tus neeg sawv cev, qhov sib ntxiv ntxiv yog 0.15% ± 0.05%. Nws muaj hydrophilicity zoo. Nws siv nws cov pab pawg hydroxyl hauv cov roj los cuam tshuam nrog cov kab ntawm cov dej molecules hauv cov roj. Kev tsim ntawm hydrogen daim ntawv cog lus koom nrog, ua ke nrog nws qhov chaw khov qis heev, txo qis qhov dej khov ntawm cov roj hauv cov roj, tso cai rau cov dej los nag rau hauv dej khov. Ethylene glycol monomethyl ether kuj yog ib qho tshuaj tiv thaiv kab mob.
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Tom ntej: 1,4-Butanediol Diglycidyl Ether CAS 2425-79-8
1,4-Butanediol glycidyl ether, tseem hu ua 1,4-butanediol dialkyl ether lossis BDG, yog cov organic compound. Nws yog xim tsis muaj xim rau lub teeb daj ua kua nrog tsawg volatility. Nws yog soluble hauv feem ntau cov kuab tshuaj organic xws li ethanol, methanol thiab dimethylformamide. Feem ntau siv los ua chemical raw khoom thiab cov kuab tshuaj. Nws kuj yog siv los ua stabilizer rau dyes thiab pigments.
1,4-Butanediol glycidyl ether tuaj yeem tsim los ntawm esterification ntawm 1,4-butanediol nrog methanol lossis methanol tov. Cov tshuaj tiv thaiv kab mob feem ntau yog nqa tawm nyob rau hauv siab siab thiab nyob rau hauv lub xub ntiag ntawm ib tug catalyst.
Thaum siv 1,4-butanediol glycidyl ether, yuav tsum tau saib xyuas kom tsis txhob sib cuag nrog daim tawv nqaij thiab qhov muag. Thaum siv thiab khaws cia, yuav tsum zam qhov kub thiab qhov hluav taws kub. Kev ceev faj yuav tsum tau them rau kev sib khi ntawm cov thawv ntim khoom kom tiv thaiv evaporation thiab to. -
Tom ntej: Diethanolamine CAS 111-42-2
Ethanolamine EA yog cov khoom tseem ceeb tshaj plaws hauv ethanol, suav nrog monoethanolamine MEA, diethanolamine DEA thiab triethanolamine TEA. Ethanolamine yog ib qho tseem ceeb ntawm cov organic nruab nrab, dav siv nyob rau hauv surfactants, hluavtaws detergents, petrochemical additives, hluavtaws resin thiab roj hmab plasticizers, accelerators, vulcanizing agents thiab foaming agents, nrog rau cov roj purification, kua antifreeze, luam ntawv thiab dyeing, tshuaj, tshuaj tua kab, kev tsim kho. , tub rog kev lag luam thiab lwm yam kev lag luam. Cov khoom lag luam hauv qab ntawm ethanolamine yog cov tshuaj lom neeg tseem ceeb.
Diethanolamine, tseem hu ua bishydroxyethylamine thiab 2,2'-iminobisethanol, yog cov siv lead ua dawb los yog cov kua tsis muaj xim uas muaj zog hygroscopicity. Nws yooj yim soluble hauv dej, methanol, ethanol, acetone thiab benzene. Nws solubility (g / 100g) hauv benzene ntawm 25 ° C yog 4.2 thiab hauv ether yog 0.8. Nws lub hom phiaj yog: roj purifier, uas muaj peev xwm nqus tau Chemicalbook acidic gases nyob rau hauv cov pa roj, xws li carbon dioxide, hydrogen sulfide, sulfur dioxide, thiab lwm yam "Benfield" tshuaj siv nyob rau hauv cov khoom siv hluavtaws ammonia yog tsim los ntawm cov khoom no; Nws kuj yog siv rau emulsification. Tus neeg sawv cev, lubricants, tshuaj zawv plaub hau, thickeners, thiab lwm yam; organic synthesis intermediates, siv los tsim cov khoom siv tshuaj ntxuav tes, tshuaj tua kab mob thiab tshuaj niaj hnub (xws li surfactants); synthesis ntawm morpholine.
Diethanolamine yog siv los ua raw khoom rau buffers hauv kev lag luam kws tshuaj. Nws yog siv los ua tus neeg sawv cev sib txuas hauv kev tsim cov polyurethane ua npuas ncauj siab. Nws yog tov nrog triethanolamine raws li ib tug detergent rau aircraft cav pistons. Nws reacts nrog fatty acids los tsim alkyl alkyl. Nws kuj tseem siv rau hauv cov khoom siv hluavtaws hluavtaws, cov khoom siv raw rau surfactants Chemicalbook thiab acid gas absorbers, siv cov thickeners thiab foam modifiers hauv cov tshuaj zawv plaub hau thiab lub teeb detergents, ua intermediates hauv kev lag luam organic synthesis, thiab hauv kev lag luam tshuaj. Raws li cov kuab tshuaj, nws yog dav siv hauv kev lag luam ntxhua khaub ncaws, kev lag luam tshuaj pleev ib ce, kev ua liaj ua teb, kev tsim kho kev lag luam thiab kev lag luam hlau.
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2-Acrylamide-2-methylpropanesulfonic acid CAS 15214-89-8
2-Acrylamide-2-methylpropanesulfonic acid (AMPS) yog vinyl monomer nrog sulfonic acid pawg. Nws muaj qhov zoo thermal stability, nrog rau qhov decomposition kub txog 210 ° C, thiab nws cov sodium ntsev homopolymer muaj qhov decomposition kub txog 329 ° C. Hauv cov tshuaj aqueous, tus nqi hydrolysis qeeb, thiab sodium ntsev tov muaj hydrolysis zoo heev nyob rau hauv siab pH. Nyob rau hauv acidic tej yam kev mob, lub hydrolysis tsis kam ntawm nws copolymer yog ntau dua li ntawm polyacrylamide. Cov monomer tuaj yeem ua rau hauv cov muaju lossis rau hauv cov kua dej ntawm sodium ntsev. 2-Acrylamide-2-methylpropanesulfonic acid muaj cov khoom zoo complexing, adsorption zog, lom neeg ua hauj lwm, deg kev ua si, hydrolysis stability thiab thermal stability.
Kev siv
1. Kev kho dej: Homopolymer ntawm AMPS monomer lossis copolymer nrog acrylamide, acrylic acid thiab lwm yam monomers tuaj yeem siv los ua cov sludge dehydrating tus neeg saib xyuas hauv cov txheej txheem dej phwj tuaj, thiab tuaj yeem siv ua hlau, zinc, txhuas, thiab tooj liab hauv cov dej kaw. circulation systems. Raws li corrosion inhibitors rau alloys; Nws kuj tseem siv tau los ua descaling thiab antiscaling agents rau cov cua sov, cov yees txias, cua purifiers thiab roj purifiers.
2. Oilfield chemistry: Daim ntawv thov ntawm cov khoom nyob rau hauv lub teb ntawm oilfield chemistry yog tsim sai heev. Lub peev xwm ntawm kev koom tes suav nrog cov roj zoo cement admixtures, drilling kua dej kho cov neeg ua haujlwm, acidizing kua, fracturing kua, tiav kua thiab workover kua additives, thiab lwm yam.
3. Synthetic fibers: AMPS yog ib qho tseem ceeb monomer uas txhim kho cov khoom zoo ntawm qee cov hluavtaws fibers, tshwj xeeb tshaj yog acrylic lossis acrylic fibers. Nws qhov ntau npaum li cas yog 1% -4% ntawm fiber ntau, uas tuaj yeem txhim kho cov xim dawb thiab dyeability ntawm fiber ntau. , antistatic, breathable thiab nplaim retardant.
4. Sizing rau textiles: Ib copolymer ntawm 2-acrylamido-2-methylpropanesulfonic acid, ethyl acetate, thiab acrylic acid. Nws yog ib qho zoo tagnrho sizing tus neeg saib xyuas rau paj rwb thiab polyester blended fabrics. Nws yog ib qho yooj yim siv thiab yooj yim tshem tawm nrog dej. Nta.
5. Papermaking: Cov copolymer ntawm 2-acrylamide-2-methylpropanesulfonic acid thiab lwm yam dej-soluble monomers yog ib qho khoom siv tsis tau rau ntau yam ntawv zeb. Nws tuaj yeem siv los ua cov dej pab cuam, tus neeg sawv cev sizing, thiab ua kom muaj zog ntawm daim ntawv thiab kuj tseem ua cov pigment dispersant rau xim txheej.
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(2-CARBOXYETHYL) DIMETHYLSULFONIUM chloride CAS 4337-33-1
DMPT yog qhov zoo tshaj plaws thib plaub-tiam cov khoom noj hauv dej uas nyiam nrhiav pom tam sim no. Qee tus neeg siv lo lus "ntses tom pob zeb" los piav qhia meej txog nws cov khoom noj ntxim nyiam - txawm tias nws pleev xim rau ntawm pob zeb, ntses yuav tom nws. Pob zeb. Kev siv DMPT feem ntau yog siv nuv ntses los txhim kho cov kab nuv ntses zoo nkauj thiab ua kom yooj yim rau cov ntses tom tus nuv. Kev lag luam siv DMPT yog raws li cov khoom noj ntsuab ntsuab ntxiv los txhawb kev noj zaub mov ntawm cov tsiaj hauv dej thiab nce lawv txoj kev loj hlob.
Qhov ntxov tshaj plaws dimethyl-beta-propionate thiatin yog ib qho ntshiab natural compound muab rho tawm los ntawm seaweed. Qhov tseeb, cov txheej txheem ntawm kev tshawb pom dimethyl-beta-propionate thiatin kuj tau pib los ntawm seaweed: cov kws tshawb fawb pom tias cov ntses seaweed kuv nyiam noj seaweed, yog li kuv pib kawm txog cov khoom noj khoom haus hauv seaweed. Tom qab ntawd kuv pom tias yog vim li cas ntses nyiam noj seaweed yog seaweed muaj DMPT ntuj.
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N, N-Diethylhydroxylamine CAS: 3710-84-7
N, N-Diethylhydroxylamine CAS: 3710-84-7
tshuaj muaj zog
Colorless pob tshab kua. Nws tsw zoo li ammonia. Yooj yim soluble hauv dej, soluble hauv ethanol, ether, chloroform, benzene.
Nws yog siv los ua olefin polymerization inhibitor, davhlau ya nyob twg polymerization inhibitor, thiab ua vinyl monomer hauv cov txheej txheem ntawm cov roj hmab hluavtaws. Raws li cov tshuaj tiv thaiv antioxidant thiab stabilizer, nws tuaj yeem siv dav hauv photosensitive resins, photosensitive emulsions, hluavtaws latex, thiab lwm yam. Nws kuj tseem siv tau los ua cov terminator rau emulsion polymerization, photochemical smog inhibitor, thiab lwm yam. kev loj hlob.
Ntim, cia thiab thauj
Packed nyob rau hauv cov yas liner chim los yog resin chim. Cov khoom no yuav tsum tau muab ntim rau hauv ib qho chaw txias, qhuav warehouse thiab tiv thaiv hluav taws. -
Dipropylamine CAS No.: 142-84-7
Dipropylamine, tseem hu ua di-n-propylamine, yog ib qho flammable, muaj kuab heev corrosive uas muaj nyob rau hauv cov xwm hauv cov nplooj ntawv luam yeeb thiab cov khoom siv pov tseg.
Di-n-propylamine yog cov kua tsis muaj xim thiab pob tshab. Muaj ammonia tsw. Yuav tsim hydrates. Yooj yim soluble hauv dej, ethanol thiab ether. Daim ntawv hydrate nrog dej. Qhov ceev 0.738, melting point -63 ℃, boiling point 110 ℃, flash point 17 ℃, refractive index 1.40445.
Di-n-propylamine tuaj yeem siv los ua cov kuab tshuaj thiab qhov nruab nrab hauv kev tsim cov tshuaj, tshuaj tua kab, tshuaj zawv plaub hau, tshuaj ntxhia flotation agents, emulsifiers thiab tshuaj zoo. Txoj kev npaj yog siv propanol li raw khoom, thiab tau txais los ntawm catalytic dehydrogenation, ammonia, lub cev qhuav dej thiab hydrogenation. Cov tshuaj tiv thaiv catalyst yog Ni-Cu-Al2O3, lub siab yog (39 ± 1) kPa, lub reactor kub yog (Chemicalbook190 ± 10) ℃, qhov chaw tshaj tawm ntawm propanol yog 0.05 ~ 0.15h-1, thiab raw khoom piv yog propanol: ammonia ∶ Hydrogen = 4: 2: 4, dipropylamine thiab tripropylamine tau txais tib lub sijhawm, thiab dipropylamine tuaj yeem tau los ntawm kev faib tawm. -
Diethylenetriaminepentaacetic acid CAS: 67-43-6
Diethylenetriaminepentaacetic acid CAS: 67-43-6
Diethylenetriaminepentacetic acid (DTPA), tseem hu ua diethylenetriaminepentacetic acid, yog ib qho zoo heev aminocarboxylic complexing tus neeg sawv cev uas muaj zog chelating zog. Cov complex nws tsim nrog cations feem ntau yog zoo dua li ntawm ethylenediaminetetraacetic acid. Qhov sib thooj chelate yuav tsum ruaj khov.
Raws li tus neeg saib xyuas kev ua haujlwm siab, diethylene triamine pentaacetic acid tuaj yeem siv rau hauv cov xim inhibitors hauv acrylic fiber ntau lawm, ntawv kev lag luam, dej softeners, textile auxiliaries, chelating titrants, xim photography thiab zaub mov industries. Nws kuj yog siv rau hauv kev kho mob, tsis tshua muaj lub ntiaj teb ntsiab Nws kuj yog siv dav hauv kev sib cais thiab kev ua liaj ua teb.
Cov khoom no yog dawb crystalline hmoov los yog crystalline hmoov. Melting point 230 ℃ (decomposition), soluble nyob rau hauv dej kub thiab alkali tov, me ntsis soluble nyob rau hauv dej txias, insoluble nyob rau hauv organic solvents xws li cawv ethers. -
DIALLYL ISOPHTHALATE CAS TSIS TAU: 1087-21-4
DIALLYL ISOPHTHALATE CAS: 1087-21-4, Kuj hu ua qib plaub reagent.Belongs rau propyl ester compounds.
Diallyl isophthalate polymers zoo sib xws hauv kev npaj, khoom thiab kev siv rau diallyl isophthalate polymers tau piav qhia saum toj no. Mouldings raws li diallyl isophthalate yog kim dua tab sis muaj kev txhim kho thermal stability (tuaj yeem tiv taus kub txog li 220 ° C rau lub sijhawm ntev) thiab tsis kam mus rau cov kuab tshuaj organic.
Nws yog lub teeb daj oily kua. Me ntsis tsw. Miscible nrog ethanol, insoluble hauv dej.
Feem ntau yog siv rau kev tshawb fawb biochemical. Organic Synthesis. Kev npaj ntawm kub kub resin. -
N, N-Bis (2-cyanoethyl) aniline CAS: 1555-66-4
N, N-Bis (2-cyanoethyl) aniline CAS: 1555-66-4
Dawb crystal hmoov. Yooj yim soluble hauv cov kuab tshuaj organic, dilute acids thiab dilute alkali, tab sis insoluble hauv dej. Siv ua dye intermediate.
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N, N-Dimethylbenzylamine CAS: 103-83-3
N, N-Dimethylbenzylamine CAS: 103-83-3
N, N-dimethylbenzylamine feem ntau yog siv los ua ib qho reagent hauv organic synthesis thiab ua ib qho catalyst rau cov synthesis ntawm polyurethane ua npuas ncauj thiab epoxy resin. Nws reacts nrog Os3 (CO) los tsim ib pawg triosmium.
N, N dimethylbenzylamine hauv methanol-tetra-N-butyl ammonium fluoroborate thiab methanol-potassium hydroxide. Siv nyob rau hauv cov synthesis ntawm bis [(N, N-dimethylamino)benzyl]selenoether. Nws kuj tseem siv tau los ua cov organic synthesis nruab nrab, dehydrogenation catalyst, preservative, acid neutralizer, thiab lwm yam.
Nws yog xim tsis muaj xim rau lub teeb daj flammable kua. Nws tsw zoo li ammonia. Yooj yim soluble hauv ethanol thiab ether, tsis yooj yim soluble hauv dej.
