-
Triethylamine CAS: 121-44-8
Triethylamine (cov mis molecular: C6H15N), tseem hu ua N,N-diethylethylamine, yog qhov yooj yim tshaj plaws homo-trisubstituted tertiary amine thiab muaj cov khoom zoo li tertiary amines, suav nrog kev tsim ntsev, oxidation, thiab triethyl amine. Kev sim (Hisbergreaction) tsis muaj lus teb. Nws zoo li cov kua tsis muaj xim rau lub teeb daj nrog cov ntxhiab ammonia muaj zog thiab haus luam yeeb me ntsis hauv huab cua. Me ntsis soluble hauv dej, soluble hauv ethanol thiab ether. Cov kua dej yog alkaline. Tshuaj lom thiab khaus heev.
Nws tuaj yeem tau los ntawm kev sib xyaw ethanol thiab ammonia nyob rau hauv qhov muaj hydrogen hauv lub reactor nruab nrog lub catalyst tooj liab-nickel-av nplaum nyob rau hauv cov xwm txheej cua sov (190 ± 2 ° C thiab 165 ± 2 ° C). Qhov kev sib xyaw kuj tseem yuav tsim monoethylamine thiab diethylamine. Tom qab condensation, cov khoom raug txau nrog ethanol thiab nqus kom tau txais cov triethylamine nyoos. Thaum kawg, tom qab sib cais, dehydration thiab fractionation, triethylamine ntshiab tau txais.
Triethylamine siv tau ua cov kuab tshuaj thiab cov khoom siv raw hauv kev lag luam organic synthesis, thiab kuj siv rau hauv kev tsim cov tshuaj, tshuaj tua kab, cov tshuaj polymerization inhibitors, roj hluav taws xob siab, cov roj hmab, thiab lwm yam.
-
Chloroacetone CAS: 78-95-5
Chloroacetone CAS: 78-95-5
Nws zoo li yog kua tsis muaj xim nrog ntxhiab tsw qab. Yaj hauv dej, yaj hauv ethanol, ether thiab chloroform. Siv rau hauv kev tsim cov organic los npaj cov tshuaj, tshuaj tua kab, cov txuj lom thiab cov xim, thiab lwm yam.
Muaj ntau txoj kev tsim cov chloroacetone. Txoj kev acetone chlorination tam sim no yog ib txoj kev tseem ceeb uas siv hauv kev tsim khoom hauv tsev. Chloroacetone tau los ntawm kev chlorinating acetone nyob rau hauv qhov muaj calcium carbonate, ib qho acid-binding agent. Ntxiv acetone thiab calcium carbonate rau hauv lub reactor raws li qee qhov piv txwv pub mis, do kom ua slurry, thiab cua sov rau reflux. Tom qab tsis ua kom sov, hla cov roj chlorine li 3 txog 4 teev, thiab ntxiv dej kom yaj cov calcium chloride tsim tawm. Cov txheej roj raug sau, thiab tom qab ntawd ntxuav, qhuav dej, thiab distilled kom tau txais cov khoom chloroacetone.
Cov yam ntxwv ntawm kev khaws cia thiab kev thauj mus los ntawm chloroacetone
Lub tsev rau khoom muaj cua nkag thiab ziab ntawm qhov kub qis; nws tiv thaiv tau hluav taws qhib thiab kub siab, thiab khaws cia thiab thauj cais ntawm cov khoom noj khoom haus raw thiab cov tshuaj oxidants.
Cov xwm txheej cia khoom: 2-8 ° C -
Propylene glycol CAS: 57-55-6
Lub npe scientific ntawm propylene glycol yog "1,2-propanediol". Cov racemate yog cov kua hygroscopic viscous nrog me ntsis saj ntsim. Nws yog miscible hauv dej, acetone, ethyl acetate thiab chloroform, thiab soluble hauv ether. Soluble hauv ntau cov roj tseem ceeb, tab sis immiscible nrog petroleum ether, paraffin thiab roj. Nws yog qhov ruaj khov rau cua sov thiab lub teeb, thiab ruaj khov dua ntawm qhov kub qis. Propylene glycol tuaj yeem oxidized rau hauv propionaldehyde, lactic acid, pyruvic acid thiab acetic acid ntawm qhov kub siab.
Propylene glycol yog diol thiab muaj cov khoom ntawm cov cawv dav dav. Nws ua rau cov tshuaj lom neeg nrog cov organic acids thiab cov inorganic acids los tsim cov monoesters lossis diesters. Nws ua rau cov tshuaj lom neeg nrog propylene oxide los tsim cov ether. Nws ua rau cov tshuaj lom neeg nrog hydrogen halide los tsim cov halohydrins. Nws ua rau cov tshuaj lom neeg nrog acetaldehyde los tsim cov methyldioxolane.
Ua ib tug neeg sawv cev bacteriostatic, propylene glycol zoo ib yam li ethanol, thiab nws cov txiaj ntsig hauv kev tiv thaiv pwm zoo ib yam li glycerin thiab qis dua me ntsis ntawm ethanol. Propylene glycol feem ntau yog siv ua plasticizer hauv cov ntaub ntawv txheej txheej aqueous. Kev sib xyaw ntawm cov khoom sib npaug nrog dej tuaj yeem ncua qhov hydrolysis ntawm qee cov tshuaj thiab ua rau kom muaj kev ruaj khov ntawm cov tshuaj.
Tsis muaj xim, nplaum thiab ruaj khov, nqus dej tau zoo, yuav luag tsis muaj saj thiab tsis muaj ntxhiab. Sib xyaw nrog dej, ethanol thiab ntau yam organic solvents. Siv ua raw khoom rau cov resins, plasticizers, surfactants, emulsifiers thiab demulsifiers, nrog rau antifreeze thiab heat carriers.
-
Benzoic acid CAS: 65-85-0
Benzoic acid, tseem hu ua benzoic acid, muaj cov mis molecular ntawm C6H5COOH. Nws yog cov kua qaub aromatic yooj yim tshaj plaws uas pawg carboxyl txuas ncaj qha rau cov pa roj carbon ntawm lub nplhaib benzene. Nws yog ib qho tshuaj uas tsim los ntawm kev hloov hydrogen ntawm lub nplhaib benzene nrog pawg carboxyl (-COOH). Nws yog cov siv lead ua flaky tsis muaj xim, tsis muaj ntxhiab. Lub ntsiab lus yaj yog 122.13 ℃, lub ntsiab lus kub yog 249 ℃, thiab qhov ceev sib piv yog 1.2659 (15/4 ℃). Nws sublimates sai ntawm 100 ° C, thiab nws cov pa ua rau khaus heev thiab tuaj yeem ua rau hnoos tom qab ua pa. Me ntsis soluble hauv dej, yooj yim soluble hauv cov kuab tshuaj organic xws li ethanol, ether, chloroform, benzene, toluene, carbon disulfide, carbon tetrachloride thiab ntoo thuv. Kev txuag roj. Nws muaj ntau yam hauv xwm hauv daim ntawv ntawm cov kua qaub dawb, ester lossis nws cov derivatives. Piv txwv li, nws muaj nyob rau hauv daim ntawv ntawm cov kua qaub dawb thiab benzyl ester hauv benzoin gum; nws muaj nyob rau hauv daim ntawv dawb hauv nplooj thiab qia tawv ntawm qee cov nroj tsuag; nws muaj nyob rau hauv cov tshuaj tsw qab Nws muaj nyob rau hauv daim ntawv ntawm methyl ester lossis benzyl ester hauv cov roj tseem ceeb; nws muaj nyob rau hauv daim ntawv ntawm nws cov derivative hippuric acid hauv nees zis. Benzoic acid yog ib qho kua qaub tsis muaj zog, muaj zog dua li cov roj fatty acids. Lawv muaj cov khoom siv tshuaj zoo sib xws thiab tuaj yeem tsim cov ntsev, esters, acid halides, amides, acid anhydrides, thiab lwm yam, thiab tsis yooj yim oxidized. Ib qho electrophilic substitution reaction tuaj yeem tshwm sim ntawm lub nplhaib benzene ntawm benzoic acid, feem ntau tsim cov khoom meta-substitution.
Benzoic acid feem ntau siv ua tshuaj lossis tshuaj tiv thaiv. Nws muaj cov nyhuv ntawm kev tiv thaiv kev loj hlob ntawm cov kab mob fungi, cov kab mob me me, thiab pwm. Thaum siv tshuaj, nws feem ntau yog siv rau ntawm daim tawv nqaij los kho cov kab mob ntawm daim tawv nqaij xws li ringworm. Siv rau hauv cov fibers hluavtaws, resins, coatings, roj hmab, thiab kev lag luam luam yeeb. Chiv thawj, benzoic acid tau tsim los ntawm carbonization ntawm benzoin gum lossis hydrolysis ntawm cov tshuaj book nrog dej alkaline. Nws kuj tseem tuaj yeem tsim los ntawm hydrolysis ntawm hippuric acid. Kev lag luam, benzoic acid yog tsim los ntawm huab cua oxidation ntawm toluene nyob rau hauv lub xub ntiag ntawm catalysts xws li cobalt thiab manganese; lossis nws yog tsim los ntawm hydrolysis thiab decarboxylation ntawm phthalic anhydride. Benzoic acid thiab nws cov ntsev sodium tuaj yeem siv ua cov neeg sawv cev antibacterial hauv latex, tshuaj txhuam hniav, jam lossis lwm yam khoom noj, thiab kuj tuaj yeem siv ua mordants rau dyeing thiab luam ntawv. -
Ethyl N-acetyl-N-butyl-β-alaninate CAS: 52304-36-6
BAAPE yog ib yam tshuaj tua kab uas muaj ntau yam zoo, thiab nws tua tau yoov, ntshauv, ntsaum, yoov qaib, kab laum, kab laug sab, kab laug sab me me, kab laug sab tiaj tiaj, kab laug sab xuab zeb, kab laug sab xuab zeb, kab laug sab cicadas, thiab lwm yam. Nws muaj zog tua tau yoov; nws cov tshuaj tua kab kav ntev thiab siv tau rau ntau yam huab cua sib txawv. Nws ruaj khov hauv kev siv thiab muaj kev ruaj khov thermal thiab tiv taus hws. BAAPE muaj kev sib raug zoo nrog cov tshuaj pleev ib ce thiab tshuaj siv feem ntau. Nws tuaj yeem ua rau cov tshuaj, emulsions, tshuaj pleev, tshuaj pleev xim, gels, aerosols, tshuaj tua yoov, microcapsules thiab lwm yam tshuaj tua kab tshwj xeeb, thiab kuj tuaj yeem ntxiv rau lwm yam khoom. Los yog hauv cov ntaub ntawv (xws li dej hauv chav dej, dej tua yoov), kom nws muaj zog tua tau yoov.
BAAPE muaj qhov zoo ntawm tsis muaj kev phiv tshuaj lom rau ntawm daim tawv nqaij thiab cov ntaub so ntswg, tsis muaj kev ua xua, thiab tsis muaj kev nkag mus rau hauv daim tawv nqaij.
Cov Khoom: Tsis muaj xim rau cov kua daj daj, yog ib qho tshuaj tua yoov tshaj cum zoo heev. Piv nrog cov tshuaj tua yoov tshaj cum ib txwm muaj (DEET, feem ntau hu ua DEET), nws muaj cov yam ntxwv tseem ceeb ntawm kev lom tsawg dua, tsis khaus ntau, thiab siv sijhawm ntev dua los tua yoov tshaj cum. , yog ib yam khoom zoo tshaj plaws hloov cov tshuaj tua yoov tshaj cum ib txwm muaj.
Cov tshuaj tua yoov uas yaj tau hauv dej (BAAPE) tsis muaj txiaj ntsig zoo li cov tshuaj DEET ib txwm muaj hauv kev tua yoov. Txawm li cas los xij, piv rau cov tshuaj no, DEET (IR3535) tsis ua rau khaus thiab tsis nkag mus rau hauv daim tawv nqaij.
-
2-Methoxyethanol CAS 109-86-4
Ethylene glycol monomethyl ether (hu ua MOE), tseem hu ua ethylene glycol methyl ether, yog cov kua tsis muaj xim thiab pob tshab, sib xyaw nrog dej, cawv, acetic acid, acetone thiab DMF. Ua ib qho tshuaj tseem ceeb, MOE yog siv dav ua cov tshuaj rau ntau yam roj, cellulose acetates, cellulose nitrates, cawv-soluble dyes thiab cov khoom siv hluavtaws.
Nws tau txais los ntawm kev sib xyaw ntawm ethylene oxide thiab methanol. Ntxiv methanol rau hauv boron trifluoride ether complex, thiab hla hauv ethylene oxide ntawm 25-30 ° C thaum do. Tom qab ua tiav qhov kev hla, qhov kub nce mus txog 38-45 ° C. Cov tshuaj tiv thaiv tshwm sim yog kho nrog potassium hydrocyanide- Neutralize cov tshuaj methanol rau pH = 8-Chemicalbook9. Rov qab methanol, distill nws, thiab sau cov feem ua ntej 130 ° C kom tau txais cov khoom nyoos. Tom qab ntawd nqa tawm fractional distillation, thiab sau cov feem 123-125 ° C ua cov khoom tiav. Hauv kev tsim khoom lag luam, ethylene oxide thiab anhydrous methanol raug tshuaj tiv thaiv ntawm qhov kub thiab siab tsis muaj catalyst, thiab cov khoom lag luam siab tuaj yeem tau txais.
Cov khoom no siv ua cov kuab tshuaj rau ntau yam roj, lignin, nitrocellulose, cellulose acetate, cov xim yaj hauv cawv thiab cov resins hluavtaws; ua cov tshuaj reagent rau kev txiav txim siab ntawm hlau, sulfate thiab carbon disulfide, ua cov tshuaj diluent rau cov txheej, thiab rau cellophane. Hauv cov khoom ntim khoom, cov varnishes qhuav sai thiab cov enamels. Nws kuj tseem siv tau ua tus neeg sawv cev nkag mus thiab tus neeg sawv cev leveling hauv kev lag luam zas xim, lossis ua cov yas thiab cov xim ci. Ua ib qho nruab nrab hauv kev tsim cov organic compounds, ethylene glycol monomethyl ether feem ntau yog siv hauv kev tsim cov acetate thiab ethylene glycol dimethyl ether. Nws kuj tseem yog cov khoom siv raw Chemicalbook rau kev tsim cov bis (2-methoxyethyl) phthalate plasticizer. Cov sib xyaw ntawm ethylene glycol monomethyl ether thiab glycerin (ether: glycerin = 98: 2) yog cov roj av tub rog uas tuaj yeem tiv thaiv kev icing thiab kev xeb ntawm cov kab mob. Thaum ethylene glycol monomethyl ether siv los ua tus neeg sawv cev tiv thaiv kev loj ntawm cov roj dav hlau, qhov ntxiv feem ntau yog 0.15% ± 0.05%. Nws muaj hydrophilicity zoo. Nws siv nws tus kheej hydroxyl pawg hauv cov roj los cuam tshuam nrog cov dej me me hauv cov roj. Kev tsim cov hydrogen bond association, ua ke nrog nws qhov chaw khov qis heev, txo qhov chaw khov ntawm cov dej hauv cov roj, ua rau cov dej ntws mus rau hauv dej khov. Ethylene glycol monomethyl ether kuj yog ib qho tshuaj tiv thaiv kab mob.
-
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 ib qho organic compound. Nws yog ib qho kua tsis muaj xim rau lub teeb daj nrog qhov tsis tshua muaj volatility. Nws yog soluble nyob rau hauv feem ntau cov organic solvents xws li ethanol, methanol thiab dimethylformamide. Feem ntau siv ua cov khoom siv tshuaj raw thiab cov kuab tshuaj. Nws kuj tseem siv ua tus stabilizer rau dyes thiab pigments.
1,4-Butanediol glycidyl ether tuaj yeem tsim los ntawm esterification ntawm 1,4-butanediol nrog methanol lossis methanol kua. Cov xwm txheej tshuaj tiv thaiv feem ntau yog ua tiav hauv qab siab thiab nyob rau hauv qhov muaj cov catalyst.
Thaum siv 1,4-butanediol glycidyl ether, yuav tsum ceev faj kom tsis txhob raug rau daim tawv nqaij thiab qhov muag. Thaum siv thiab khaws cia, yuav tsum tsis txhob kub heev thiab qhov chaw hluav taws. Yuav tsum tau ceev faj txog kev kaw cov thawv cia kom tiv thaiv kev ua pa thiab xau. -
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 intermediates, siv dav hauv surfactants, synthetic detergents, petrochemical additives, synthetic resin thiab roj hmab plasticizers, accelerators, vulcanizing agents thiab foaming agents, nrog rau roj purification, kua antifreeze, Luam ntawv thiab dyeing, tshuaj, tshuaj tua kab, kev tsim kho, kev lag luam tub rog thiab lwm yam teb. Cov khoom lag luam downstream ntawm ethanolamine yog cov tshuaj intermediates zoo tseem ceeb.
Diethanolamine, tseem hu ua bishydroxyethylamine thiab 2,2′-iminobisethanol, yog cov kua dawb lossis tsis muaj xim nrog lub zog hygroscopicity. Nws yooj yim yaj 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 tuaj yeem nqus cov pa roj acidic hauv cov roj, xws li carbon dioxide, hydrogen sulfide, sulfur dioxide, thiab lwm yam. Cov kua "Benfield" siv hauv kev lag luam ammonia hluavtaws feem ntau yog tsim los ntawm cov khoom no; nws kuj siv rau emulsification. Cov neeg sawv cev, roj nplua nyeem, tshuaj zawv plaub hau, thickeners, thiab lwm yam; organic synthesis intermediates, siv los tsim cov khoom siv ntxuav, preservatives thiab cov tshuaj txhua hnub (xws li surfactants); synthesis ntawm morpholine.
Diethanolamine siv ua cov khoom siv raw rau cov buffers hauv kev lag luam tshuaj. Nws siv ua tus neeg sawv cev sib txuas hauv kev tsim cov ua npuas polyurethane uas muaj zog heev. Nws sib xyaw nrog triethanolamine ua cov tshuaj ntxuav rau cov pistons cav dav hlau. Nws reacts nrog cov fatty acids los tsim alkyl alkyls. Nws kuj siv rau hauv cov khoom siv organic Synthetic raw, cov khoom siv raw rau surfactants Chemicalbook thiab acid gas absorbers, siv ua cov thickeners thiab foam modifiers hauv cov tshuaj zawv plaub hau thiab cov tshuaj ntxuav lub teeb, ua cov intermediates hauv kev lag luam organic synthesis, thiab hauv kev lag luam tshuaj. Ua cov kuab tshuaj, nws siv dav hauv kev lag luam ntxuav khaub ncaws, kev lag luam tshuaj pleev ib ce, kev ua liaj ua teb, kev lag luam tsim kho thiab kev lag luam hlau.
-
2-Acrylamide-2-methylpropanesulfonic acid CAS 15214-89-8
2-Acrylamide-2-methylpropanesulfonic acid (AMPS) yog ib qho vinyl monomer nrog ib pawg sulfonic acid. Nws muaj kev ruaj khov zoo thermal, nrog rau qhov kub thiab txias decomposition txog li 210 ° C, thiab nws cov sodium ntsev homopolymer muaj qhov kub thiab txias decomposition txog li 329 ° C. Hauv cov kua dej, qhov hydrolysis qeeb, thiab cov kua ntsev sodium muaj kev tiv thaiv hydrolysis zoo heev nyob rau hauv cov xwm txheej pH siab. Nyob rau hauv cov xwm txheej acidic, qhov hydrolysis tsis kam ntawm nws cov copolymer yog siab dua li ntawm polyacrylamide. Lub monomer tuaj yeem ua rau hauv cov siv lead ua los yog rau hauv cov kua dej ntawm sodium ntsev. 2-Acrylamide-2-methylpropanesulfonic acid muaj cov khoom zoo complexing, cov khoom adsorption, kev ua haujlwm ntawm lub cev, kev ua haujlwm ntawm qhov chaw, hydrolysis stability thiab thermal stability.
Kev Siv
1. Kev kho dej: Cov homopolymer ntawm AMPS monomer lossis copolymer nrog acrylamide, acrylic acid thiab lwm yam monomers tuaj yeem siv ua tus neeg sawv cev dehydrating sludge hauv cov txheej txheem ntxuav dej phwj tuaj, thiab tuaj yeem siv ua hlau, zinc, txhuas, thiab tooj liab hauv cov kab ke kaw dej. Ib yam li cov tshuaj tiv thaiv xeb rau cov hlau sib xyaw; nws kuj tseem tuaj yeem siv ua cov neeg sawv cev descaling thiab antiscaling rau cov cua sov, cov pej thuam txias, cov tshuab lim cua thiab cov tshuab lim roj.
2. Kev siv tshuaj lom neeg hauv thaj chaw roj: Kev siv cov khoom hauv thaj chaw tshuaj lom neeg hauv thaj chaw roj tab tom loj hlob sai. Qhov ntau thiab tsawg ntawm kev koom tes suav nrog cov tshuaj sib xyaw ua ke ntawm cov roj hauv qhov dej, cov tshuaj kho dej rau kev khawb av, cov kua ua kom acidizing, cov kua tawg, cov kua ua tiav thiab cov tshuaj ntxiv rau cov kua ua haujlwm, thiab lwm yam.
3. Cov xov paj rwb ua los ntawm cov khoom siv hluavtaws: AMPS yog ib qho tseem ceeb monomer uas txhim kho cov khoom siv ntawm qee cov xov paj rwb ua los ntawm cov khoom siv hluavtaws, tshwj xeeb tshaj yog acrylic lossis acrylic fibers. Nws cov tshuaj yog 1% -4% ntawm cov fiber, uas tuaj yeem txhim kho qhov dawb thiab xim ntawm cov fiber. , antistatic, breathable thiab hluav taws kub retardant.
4. Kev ntsuas qhov loj rau cov ntaub: Ib qho copolymer ntawm 2-acrylamido-2-methylpropanesulfonic acid, ethyl acetate, thiab acrylic acid. Nws yog ib qho tshuaj ntsuas qhov loj zoo tshaj plaws rau cov ntaub paj rwb thiab polyester sib xyaw. Nws yooj yim siv thiab yooj yim tshem tawm nrog dej. Nta.
5. Kev ua ntawv: Cov copolymer ntawm 2-acrylamide-2-methylpropanesulfonic acid thiab lwm cov monomers uas yaj hauv dej yog cov tshuaj tseem ceeb rau ntau lub tshuab ntawv. Nws tuaj yeem siv los ua cov khoom siv dej ntws, tus neeg sawv cev ntsuas qhov loj me, thiab ua rau daim ntawv muaj zog thiab tseem ua haujlwm ua cov xim dispersant rau cov xim pleev xim.
-
(2-CARBOXYETHYL) DIMETHYLSULFONIUM CHLORIDE CAS: 4337-33-1
DMPT yog cov tshuaj uas zoo tshaj plaws rau cov tsiaj hauv dej tiam plaub uas nrhiav tau txog tam sim no. Ib txhia neeg siv lo lus "ntses tom pob zeb" los piav qhia txog nws cov txiaj ntsig ntawm kev nyiam cov tsiaj - txawm tias nws raug pleev xim rau ntawm pob zeb, ntses yuav tom nws. Pob zeb. Kev siv DMPT feem ntau yog ua cov cuab yeej nuv ntses los txhim kho qhov kev nyiam ntawm cov cuab yeej thiab ua rau nws yooj yim dua rau ntses tom tus nuv. Kev siv DMPT hauv kev lag luam yog ua cov khoom noj ntsuab hauv dej los txhawb kev noj zaub mov ntawm cov tsiaj hauv dej thiab ua kom lawv loj hlob sai.
Qhov dimethyl-beta-propionate thiatin thaum ntxov tshaj plaws yog cov khoom xyaw ntuj tsim uas tau rho tawm los ntawm seaweed. Qhov tseeb, cov txheej txheem ntawm kev tshawb pom dimethyl-beta-propionate thiatin kuj pib los ntawm seaweed: cov kws tshawb fawb tau pom tias cov ntses dej hiav txwv nyiam noj seaweed, yog li kuv pib kawm txog cov khoom noj uas nyiam seaweed. Tom qab ntawd kuv pom tias qhov laj thawj uas cov ntses nyiam noj seaweed yog tias seaweed muaj DMPT ntuj.
-
N,N-Diethylhydroxylamine CAS: 3710-84-7
N,N-Diethylhydroxylamine CAS: 3710-84-7
cov khoom siv tshuaj lom neeg
Kua tsis muaj xim pob tshab. Nws tsw zoo li ammonia. Yooj yim yaj hauv dej, yaj hauv ethanol, ether, chloroform, benzene.
Nws yog siv los ua olefin polymerization inhibitor, terminal polymerization inhibitor, thiab ua vinyl monomer hauv cov txheej txheem tsim cov roj hmab hluavtaws. Ua ib qho antioxidant thiab stabilizer, nws tuaj yeem siv dav hauv cov photosensitive resins, photosensitive emulsions, synthetic latex, thiab lwm yam. Nws kuj tseem siv tau ua terminator rau emulsion polymerization, photochemical smog inhibitor, thiab lwm yam. Cov sulfate no yog tus neeg sawv cev sib npaug rau kev txhim kho xim.
Ntim, khaws cia thiab thauj mus los
Ntim rau hauv cov thoob yas lossis cov thoob roj hmab. Cov khoom no yuav tsum tau khaws cia rau hauv qhov chaw txias, qhuav thiab tiv thaiv kom tsis txhob muaj hluav taws. -
Dipropylamine CAS No.: 142-84-7
Dipropylamine, tseem hu ua di-n-propylamine, yog cov kua dej uas yooj yim hlawv, muaj tshuaj lom heev uas muaj nyob hauv cov nplooj luam yeeb thiab cov khib nyiab pov tseg los ntawm kev lag luam.
Di-n-propylamine yog ib yam kua tsis muaj xim thiab pob tshab. Muaj ntxhiab tsw ammonia. Muaj peev xwm tsim cov hydrates. Yooj yim yaj hauv dej, ethanol thiab ether. Tsim cov hydrate nrog dej. Qhov ceev 0.738, melting point -63 ℃, boiling point 110 ℃, flash point 17 ℃, refractive index 1.40445.
Di-n-propylamine siv tau ua cov kuab tshuaj thiab cov khoom siv nruab nrab hauv kev tsim cov tshuaj, tshuaj tua kab, cov xim pleev xim, cov khoom siv ua kom cov ntxhia, cov emulsifiers thiab cov tshuaj zoo. Txoj kev npaj yog siv propanol ua cov khoom siv raw, thiab tau txais nws los ntawm catalytic dehydrogenation, ammoniation, dehydration thiab hydrogenation. Cov tshuaj catalyst yog Ni-Cu-Al2O3, qhov siab yog (39 ± 1) kPa, qhov kub ntawm lub reactor yog (Chemicalbook 190 ± 10) ℃, qhov ceev ntawm propanol yog 0.05 ~ 0.15h-1, thiab qhov piv ntawm cov khoom siv raw yog propanol: ammonia ∶Hydrogen = 4: 2: 4, dipropylamine thiab tripropylamine tau txais tib lub sijhawm, thiab dipropylamine tuaj yeem tau txais los ntawm kev faib ua feem.
