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Diethylenetriaminepentaacetic acid CAS: 67-43-6
Diethylenetriaminepentaacetic acid CAS: 67-43-6
Diethylenetriaminepentacetic acid (DTPA), tseem hu ua diethylenetriaminepentacetic acid, yog ib qho aminocarboxylic complexing agent zoo heev nrog cov khoom chelating muaj zog. Cov complex nws tsim nrog feem ntau cations zoo dua li ntawm ethylenediaminetetraacetic acid. Cov chelate sib xws yuav tsum ruaj khov.
Ua ib tug neeg sawv cev chelating ua haujlwm siab, diethylene triamine pentaacetic acid tuaj yeem siv rau hauv cov xim inhibitors hauv kev tsim cov acrylic fiber, kev lag luam ntawv, cov dej mos, cov khoom siv textile, chelating titrants, kev thaij duab xim thiab kev lag luam zaub mov. Nws kuj tseem siv rau hauv kev kho mob, cov khoom tsis tshua muaj. Nws kuj tseem siv dav hauv kev sib cais thiab kev ua liaj ua teb.
Cov khoom no yog dawb siv lead ua los yog crystalline hmoov. Melting point 230 ℃ (decomposition), soluble hauv dej kub thiab alkali kua, me ntsis soluble hauv dej txias, insoluble hauv cov organic solvents xws li cawv ethers. -
DIALLYL ISOPHTHALATE CAS: 1087-21-4
DIALLYL ISOPHTHALATE CAS: 1087-21-4, Kuj hu ua theem plaub reagent.Belongs rau propyl ester compounds.
Cov polymers Diallyl isophthalate zoo sib xws hauv kev npaj, cov yam ntxwv thiab kev siv rau cov polymers diallyl isophthalate piav qhia saum toj no. Cov pwm ua los ntawm diallyl isophthalate kim dua tab sis muaj kev ruaj khov thermal zoo dua (tuaj yeem tiv taus qhov kub txog li 220 ° C rau lub sijhawm ntev) thiab tiv taus cov organic solvents.
Nws yog ib qho kua roj daj daj me me. Muaj ntxhiab me ntsis. Sib xyaw nrog ethanol, tsis yaj hauv dej.
Feem ntau siv rau kev tshawb fawb biochemical. Organic Synthesis. Kev npaj cov resin kub siab. -
N,N-Bis(2-cyanoethyl)aniline CAS: 1555-66-4
N,N-Bis(2-cyanoethyl)aniline CAS: 1555-66-4
Hmoov siv lead ua dawb. Yooj yim yaj hauv cov kuab tshuaj organic, dilute acids thiab dilute alkali, tab sis insoluble hauv dej. Siv ua xim nruab nrab.
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N,N-Dimethylbenzylamine CAS: 103-83-3
N,N-Dimethylbenzylamine CAS: 103-83-3
N, N-dimethylbenzylamine feem ntau siv ua cov tshuaj reagent hauv cov organic synthesis thiab ua cov catalyst rau kev tsim cov polyurethane ua npuas ncauj thiab epoxy resin. Nws reacts nrog Os3 (CO3) los tsim ib pawg triosmium.
N,N dimethylbenzylamine nyob rau hauv methanol-tetra-N-butyl ammonium fluoroborate thiab methanol-potassium hydroxide. Siv rau hauv kev tsim cov bis[(N,N-dimethylamino)benzyl]selenoether. Nws kuj tseem siv tau ua cov organic synthesis intermediate, dehydrogenation catalyst, preservative, acid neutralizer, thiab lwm yam.
Nws tsis muaj xim mus rau daj daj uas yooj yim hlawv. Nws tsw zoo li ammonia. Yooj yim yaj hauv ethanol thiab ether, tsis tshua yaj hauv dej.
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4-Methyldiphenylamine CAS: 620-84-8
4-Methyldiphenylamine CAS: 620-84-8
Cov khoom siv raw organic: cycloalkylamines, aromatic monoamines, aromatic polyamines thiab lawv cov derivatives thiab ntsev. Qhov tsos yog dawb crystal. Feem ntau siv rau cov organic synthesis intermediates, synthesis ntawm cov organic functional materials thiab tshuaj, nrog rau photochemistry thiab kua crystal intermediates. Insoluble hauv dej. Soluble hauv benzene, toluene, methanol, ethanol. rau qhov xwm txheej cia, Khaws cia rau hauv qhov chaw tsaus, Kaw rau hauv qhov qhuav, Chav sov.
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N,N-Dimethylacetamide CAS: 127-19-5
N,N-Dimethylacetamide CAS: 127-19-5
Cov khoom siv tshuaj lom neeg: Cov khoom siv tshuaj lom neeg zoo ib yam li N, N-dimethylformamide, thiab nws yog cov tshuaj amide uas sawv cev. Yog tsis muaj kua qaub lossis alkali, nws yuav tsis lwj thaum rhaub kom npau hauv qab lub siab ib txwm muaj, yog li nws tuaj yeem raug distilled hauv qab lub siab ib txwm muaj. Tus nqi hydrolysis qeeb heev. Thaum N, N-dimethylacetamide uas muaj 5% dej raug cua sov ntawm 95 ° C rau 140 teev, tsuas yog 0.02% yog hydrolyzed. Txawm li cas los xij, thaum muaj kua qaub thiab alkali, tus nqi hydrolysis nce ntxiv. Saponification tshwm sim thaum cua sov hauv qhov muaj alkali muaj zog.
daim ntawv thov
1. Cov tshuaj dimethylacetamide yog cov khoom siv tshuaj tseem ceeb thiab siv dav hauv kev tsim cov amoxicillin, cephalosporins thiab lwm yam tshuaj. Ua ib qho tshuaj yaj lossis cocatalyst, dimethylacetamide tuaj yeem txhim kho cov khoom zoo thiab cov txiaj ntsig piv rau cov tshuaj organic ib txwm muaj. Xyoo 2000, qhov kev thov rau dimethylacetamide hauv kev lag luam tshuaj yog kwv yees li 6kt. Qhov kev thov rau dimethylacetamide hauv xyoo 2006 yog kwv yees li 9.6kt. 2. Kev tsim cov fiber acrylic Hauv kev tsim cov fiber acrylic, qee tus siv txoj kev dimethylacetamide. Tam sim no, kev tsim cov fiber acrylic hauv tsev Chemicalbook feem ntau suav nrog sodium thiocyanate ob kauj ruam, dimethylformamide ib kauj ruam thiab dimethylacetamide organic ntub txoj kev raws li cov tshuaj yaj. Los ntawm qhov kev xav ntawm cov txheej txheem thiab cov khoom siv, kev siv khoom, kev cuam tshuam rau ib puag ncig, qhov zoo ntawm cov khoom, Ntau yam xws li kev ua tau zoo tom qab ua tiav, tus nqi hauv zos thiab cov qauv kev txhim kho txawv teb chaws tau nce kev tshawb fawb thiab kev txhawb nqa kev siv zog. Dimethylacetamide tau siv los ua kev sib piv tag nrho. Txoj kev siv ob kauj ruam ntawm Sodium thiocyanate thiab txoj kev ntub dej dimethylacetamide organic tau siv. Kev txhim kho zoo tshaj plaws. Tam sim no, ntau lub chaw teeb tsa acrylic fiber hauv Suav teb siv cov txheej txheem ntub dej siv dimethylacetamide ua cov kuab tshuaj. -
Alcohol CAS: 107-18-6
Alcohol CAS: 107-18-6
xwm
Cov kua tsis muaj xim nrog ntxhiab tsw qab ntawm cov kua txob. Qhov ceev sib piv o. 8520. Qhov chaw khov -129 ℃. Qhov chaw kub 96.9 ℃. Qhov kub tseem ceeb yog 271.9 ℃. Qhov chaw ci (khob kaw) 22.2 ℃. Nws dhau los ua vitreous ntawm -190 ℃. Refractive index 1. 4132. Sib xyaw nrog dej, ether, ethanol, chloroform thiab roj av ether.
siv
Nws yog ib qho nruab nrab rau kev tsim cov glycerin, tshuaj, tshuaj tua kab, txuj lom thiab tshuaj pleev ib ce, thiab tseem yog cov khoom siv raw rau kev tsim cov diallyl phthalate resin thiab bis (2,3-bromopropyl) fumarate. Silane derivatives ntawm allyl cawv thiab copolymers nrog styrene yog dav siv hauv coatings thiab iav.
kev lag luam fiber. Allyl urethane tuaj yeem siv rau hauv cov txheej txheem polyurethane photosensitive thiab kev lag luam casting.
kev nyab xeeb
Nws muaj ib qho tsw tshwj xeeb thiab tuaj yeem ua rau khaus qhov muag, tawv nqaij, caj pas, thiab cov ntaub so ntswg. Hauv cov xwm txheej hnyav, nws tuaj yeem ua rau dig muag. Kev lo rau ntawm daim tawv nqaij tuaj yeem ua rau nws tig liab thiab ua rau kub hnyiab, thiab nws sai sai nqus los ntawm daim tawv nqaij, ua rau muaj kab mob siab, mob ntsws, ntshav ntws thiab lwm yam tsos mob. Ib qho ntawm cov cawv lom tshaj plaws, qhov ncauj LD50 hauv nas yog 64rng / kg. Qhov ncauj dev LD50 40mg / kg. Qhov siab tshaj plaws tso cai concentration hauv huab cua ntawm qhov chaw tsim khoom yog 5rng / m3. Ntawm qhov concentration no, qhov khaus yog muaj zog heev thiab tsis tuaj yeem zam tau ntev. Yog tias nws txaws rau ntawm daim tawv nqaij, yaug nrog dej thiab siv cov tshuaj raws li roj. Hnav cov khoom siv tiv thaiv thaum ua haujlwm. -
Dicyclohexylamine CAS: 101-83-7
Dicyclohexylamine CAS: 101-83-7
Dicyclohexylamine yog npaj los ntawm kev siv aniline ua cov khoom siv raw thiab hydrogenating nws ntawm qhov kub thiab siab siab nyob rau hauv qhov muaj cov catalyst.
Nws yog dav siv ua ib qho intermediate hauv organic synthesis thiab siv tau los npaj cov xim intermediates, roj hmab accelerators, nitrocellulose xim, tshuaj tua kab, catalysts, preservatives, gas phase corrosion inhibitors thiab roj antioxidant tshuaj additives, thiab lwm yam. Kuj siv ua tus neeg sawv cev extraction. Fatty acid ntsev thiab sulfates ntawm dicyclohexylamine muaj cov khoom tshem tawm cov xim zoo li xab npum thiab siv rau hauv kev luam ntawv, dyeing thiab textile industries. Nws cov hlau complexes yog siv ua catalysts rau inks thiab xim.
Cov kua roj tsis muaj xim thiab pob tshab nrog ntxhiab tsw ammonia. Me ntsis soluble hauv dej, sib xyaw nrog cov organic solvents. -
N-Methylformamide (NMF) CAS: 123-39-7
N-Methylformamide (NMF) CAS: 123-39-7
N-methylformamide ntshiab yog cov kua tsis muaj xim, pob tshab thiab khov, mp-3.8 ℃, bp198 ℃, n25D 1.4310, qhov ceev ntawm qhov sib piv 0.9986 (25 ℃), yaj hauv dej, kuj tuaj yeem yaj cov ntsev inorganic, thiab yog hygroscopic. Yooj yim decomposes hauv cov kua qaub lossis alkaline.
N-methylformamide yog ib qho khoom siv tseem ceeb ntawm cov organic synthetic raw khoom. Nws yog siv rau hauv kev tsim cov tshuaj tua kab, tshuaj tua kab thiab acaricides monoformamidine thiab diformamidine. Nws kuj tseem siv rau hauv kev tsim tshuaj, tawv hluavtaws, tawv dag, thiab ua cov kuab tshuaj rau cov ntaub fiber tshuaj.
Txoj Kev Tsim Khoom 1. Txoj kev Methylamine yog tsim los ntawm kev sib xyaw ntawm methylamine thiab carbon monoxide. 2. Txoj kev Methyl formate yog tau los ntawm kev sib xyaw ntawm methyl formate thiab methylamine. 3. Tau los ntawm kev sib xyaw ntawm ethyl formate thiab methylamine. Ntxiv ethyl formate rau hauv lub reactor, ntxiv methylamine aqueous kua hauv qab txias, thiab rov qab ua kom rov qab ntawm 40 ° C. Tom qab ntawd nws tau tso rau 3 hnub, thiab ethanol tau rov qab los ntawm kev txo qis kom tau txais cov khoom nyoos. Cov khoom tiav yog tau los ntawm kev distillation hauv qab kev txo qis.
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3-Dimethylaminopropylamine CAS: 109-55-7
Diamine yog ib hom tshuaj lom neeg tseem ceeb uas siv dav ua cov khoom siv raw, cov khoom nruab nrab lossis cov khoom lag luam. Piv txwv li, diamine yog ib qho tseem ceeb hauv kev tsim cov polyamide thiab lwm yam kev sib xyaw ua ke polymerization. N,N-dimethyl-1Chemicalbook,3-diaminopropane (DMAPA) yog ib qho tseem ceeb hauv nruab nrab, siv piv txwv li hauv kev npaj cov roj nplua nyeem hauv kev lag luam. Tsis tas li ntawd, DMAPA yog siv ua cov khoom siv raw rau kev npaj cov coagulants thiab nws tus kheej yuav tsum muaj cov khoom tiv thaiv xeb.
Nws yog kua tsis muaj xim pob tshab. Yaj hauv dej thiab cov kuab tshuaj organic. Siv dav hauv kev tsim cov khoom siv kho kom zoo nkauj, xws li palmitamide dimethylpropylamine, cocamidopropyl betaine, mink roj amidopropylamine, thiab lwm yam.
Siv dimethylaminopropionitrile [1738-25-6] ua cov khoom siv raw, hydrogenation thiab methanol raug ntxiv rau hauv qhov muaj Ni-Al catalyst, thiab tom qab ntawd lim thiab distilled kom tau txais cov khoom tiav ntawm 3-dimethylaminopropylamine. Qhov huv ntawm cov khoom tau txais tuaj yeem ncav cuag ntau dua 99%, thiab txhua tuj ntawm cov khoom noj 1150kg ntawm dimethylaminopropionitrile. -
2-(N-Ethyl-m-toluidino) ethanol CAS: 91-88-3
N-ethyl-N-hydroxyethyl m-toluidine (2-(Ethyl(m-tolyl)amino)ethanol) yog cov kua daj daj thiab yog ib qho xim nruab nrab. Siv los tsim cov xim cationic, xws li cationic liab 6B. Nws kuj tseem siv ua cov khoom siv raw rau kev tsim cov xim thiab tshuaj.
Siv: 1. Cov xim nruab nrab.
Qhov thib ob, nws yog siv los tsim cov xim cationic, xws li cationic liab 6B.
3. Siv ua cov khoom siv raw rau kev tsim cov xim thiab cov tshuaj.
txoj kev tsim khoom
1. txoj kev m-toluidine
Nws yog npaj los ntawm m-toluidine thiab ethyl iodide ua cov khoom siv raw.
Ob, N-ethyl m-toluidine txoj kev
Nws yog npaj los ntawm kev siv N-ethyl m-toluidine ua cov khoom siv raw thiab reacting nrog chloroethanol (lossis ethylene oxide).
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N, N-Dimethylformamide CAS 68-12-2
Dimethylformamide yog ib yam kua tsis muaj xim thiab pob tshab. Nws tsis yog tsuas yog siv dav hauv cov tshuaj lom neeg xwb, tab sis kuj yog ib qho tshuaj yaj zoo heev uas siv tau ntau yam. Dimethylformamide yog ib yam khoom siv tseem ceeb rau kev lag luam tshuaj, petrochemical, tawv thiab lwm yam lag luam.
Dimethylformamide hu ua DMF. Nws yog ib qho tshuaj uas pawg hydroxyl ntawm formic acid hloov los ntawm pawg dimethylamino, nrog rau cov mis molecular HCON (CH3) 2. Nws yog ib qho kua tsis muaj xim thiab pob tshab uas muaj ntxhiab amine me me thiab qhov ceev ntawm 0.9445 (25 ℃). Melting point -61 ℃. Boiling point 152.8 ℃. Flash point 57.78 ℃. Vapor density 2.51. Vapor pressure 0.49kpa (3.7mmHg 25 ℃). Autoignition point yog 445 ℃. Qhov txwv ntawm kev tawg ntawm cov pa thiab cua sib xyaw yog 2.2 ~ 15.2%. Kev raug rau cov nplaim taws qhib thiab kub siab yuav ua rau muaj kev kub hnyiab thiab tawg. Nws tuaj yeem ua rau muaj kev kub ntxhov nrog cov kua qaub sulfuric thiab cov kua qaub nitric fuming thiab txawm tias tawg. Nws sib xyaw nrog dej thiab feem ntau cov kuab tshuaj organic. Nws yog ib qho kuab tshuaj rau cov tshuaj tiv thaiv tshuaj. Dimethylformamide ntshiab tsis muaj ntxhiab, tab sis qib kev lag luam lossis dimethylformamide uas lwj lawm muaj ntxhiab ntses vim nws muaj cov khoom tsis huv dimethylamine. Lub npe los ntawm qhov tseeb tias nws yog dimethyl hloov formamide (amide ntawm formic acid), thiab ob pawg methyl nyob ntawm N (nitrogen) atom. Dimethylformamide yog cov kuab tshuaj polar (hydrophilic) aprotic nrog lub ntsiab lus kub siab, uas tuaj yeem txhawb nqa SN2 cov tshuaj tiv thaiv. Dimethylformamide yog ua los ntawm formic acid thiab dimethylamine. Dimethylformamide tsis ruaj khov (tshwj xeeb tshaj yog thaum kub siab) nyob rau hauv qhov muaj cov hauv paus muaj zog xws li sodium hydroxide lossis cov kua qaub muaj zog xws li hydrochloric acid lossis sulfuric acid, thiab hydrolyzes rau formic acid thiab dimethylamine.
Nws ruaj khov heev hauv huab cua thiab thaum cua sov kom npau. Thaum qhov kub siab tshaj 350 ° C, nws poob dej thiab tsim cov pa roj carbon monoxide thiab dimethylamine. N, N-dimethylformamide yog cov tshuaj aprotic polar zoo heev uas tuaj yeem yaj feem ntau cov organic thiab inorganic thiab sib xyaw nrog dej, cawv, ethers, aldehydes, ketones, esters, halogenated hydrocarbons thiab aromatic hydrocarbons. . Qhov kawg ntawm N, N-dimethylformamide molecule yog ib puag ncig los ntawm methyl pawg, tsim ib qho chaw thaiv uas tiv thaiv cov ions tsis zoo los ntawm kev los ze thiab tsuas yog koom nrog cov ions zoo. Cov anions liab qab muaj zog ntau dua li cov anions solvated. Ntau cov tshuaj tiv thaiv ionic yooj yim dua los ua hauv N, N-dimethylformamide dua li cov tshuaj tiv thaiv protic dav dav. Piv txwv li, carboxylates thiab halogenated hydrocarbons react hauv N, N-dimethylformamide ntawm chav tsev kub. , tuaj yeem tsim cov esters nrog cov txiaj ntsig siab, thiab tshwj xeeb tshaj yog tsim rau kev tsim cov esters hindered sterically.
