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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.
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N,N-Diethylaniline CAS: 91-66-7
N,N-Diethylaniline CAS: 91-66-7
Tsis muaj xim rau xim daj. Muaj ntxhiab tsw tshwj xeeb. Me ntsis soluble hauv dej, soluble hauv cov organic solvents xws li ethanol, ether, chloroform thiab benzene. Tau los ntawm kev sib xyaw ntawm aniline thiab ethyl chloride. Cov khoom siv raw siv: aniline 645kg/t, ethyl chloride (95%) 1473kg/t, caustic soda (42%) 1230kg/t, phthalic anhydride 29kg/t.
Nws tuaj yeem siv los npaj cov azo dyes, triphenylmethane dyes, thiab lwm yam. Nws kuj yog ib qho tseem ceeb rau kev tsim cov tshuaj thiab cov neeg tsim cov xim zaj duab xis, thiab nws cov ntawv thov dav heev.
Kev Khaws Cia: Lub tsev rau khoom muaj cua nkag thiab ziab ntawm qhov kub qis; khaws cia sib cais ntawm cov kua qaub, cov tshuaj oxidants thiab cov khoom noj khoom haus ntxiv. -
Polyethylene-polyamines CAS: 68131-73-7
Polyethylene-polyamines CAS: 68131-73-7
Tsos txiv kab ntxwv-liab rau xim av kua nplaum.
Kev Siv: Siv rau kev ua cov tshuaj anion exchange resin, ion exchange membrane, crude oil demulsifier, lubricating oil additive, thiab lwm yam. Kuj siv ua epoxy resin curing agent thiab cyanide-free plating additive.
Kev yaj: yaj tau hauv dej thiab ethanol, tsis yaj hauv ether, yooj yim nqus cov dej noo thiab carbon dioxide hauv huab cua, thiab tsim cov ntsev sib xws nrog cov kua qaub, uas yuav khov ntawm qhov kub qis.
Nws yooj yim heev rau tawg thaum raug kev cuam tshuam, kev sib txhuam, nplaim taws qhib lossis lwm yam khoom siv hluav taws. Khaws cia rau hauv qhov chaw txias, qhuav thiab muaj cua nkag uas tshwj xeeb rau cov khoom tawg. Qhov kub cia tsis pub tshaj 32 ° C thiab qhov av noo tsis pub tshaj 80%. Khaws cia kom deb ntawm hluav taws thiab cua sov. Lawv yuav tsum khaws cia cais ntawm cov tshuaj oxidants, acids, thiab alkalis, thiab zam kev khaws cia sib xyaw. Nruab nrog ntau yam thiab ntau npaum li cas ntawm cov khoom siv hluav taws. Cov ntaub ntawv tsim nyog yuav tsum muaj nyob rau hauv thaj chaw khaws cia kom tswj tau cov dej ntws. Tsis muaj kev co, kev cuam tshuam thiab kev sib txhuam.
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Ethylenediaminetetraacetic acid CAS: 60-00-4
Ethylenediaminetetraacetic acid CAS: 60-00-4
cov khoom siv tshuaj lom neeg
Cov khoom no crystallizes tawm hauv dej ua hmoov dawb. Qhov solubility hauv dej ntawm 25 ℃ yog 0.5g / L. Insoluble hauv dej txias, cawv thiab cov organic solvents dav dav. Soluble hauv sodium hydroxide, sodium carbonate thiab ammonia kua.
Txoj kev tsim khoom:
Kev sib xyaw ntawm ethylenediamine thiab chloroacetic acid. Ntxiv 100kg ntawm chloroacetic acid, 100kg ntawm dej khov thiab 135kg ntawm sodium hydroxide kua (30%) rau hauv lub lauj kaub sib xyaw, thiab tom qab ntawd ntxiv 18kg ntawm 83% txog 84% ethylenediamine hauv qab kev sib xyaw. Incubate ntawm 15 ° C rau 1 teev. Ntxiv 30Chemicalbook% sodium hydroxide kua hauv cov pawg ntawm 10L txhua lub sijhawm. Tom qab txhua qhov ntxiv, ntxiv lwm pawg tom qab cov tshuaj ntsuam phenolphthalein tsis qhia liab. Khaws cia rau hauv chav sov rau 12 teev. Ua kom sov rau 90 ° C thiab decolorize nrog activated carbon. Lim, ntxuav cov lim dej seem nrog dej, thiab thaum kawg kho tus nqi pH rau 3 nrog concentrated hydrochloric acid. Txias thiab crystallize, lim thiab ntxuav nrog dej kom txog thaum tsis muaj chloride ion sib xyaw. Cov khoom qhuav.
Kev sib xyaw ntawm ethylenediamine nrog formaldehyde thiab sodium cyanide. Sib tov 60% ethylenediamine aqueous solution, 30% sodium cyanide aqueous solution thiab sodium hydroxide, thiab khaws cov khoom sib xyaw ntawm 20 ° C rau 0.5 teev. Tom qab ntawd ntxiv formaldehyde aqueous solution dropwise. Tom qab kev sib xyaw, cov tshuaj lom neeg tau decompressed thiab cov dej tau evaporated. Tom qab ntawd rov ua qhov kev ua haujlwm saum toj no, ntxiv cov formaldehyde ntau dhau rau lub sijhawm kawg kom tso cai rau sodium cyanide kom sib xyaw tag nrho. Kho pH rau 1.2 nrog dilute acid. Ib qho dawb precipitate precipitated, lim, ntxuav nrog dej, thiab ziab ntawm 110 ° C. Tau txais cov khoom.
Ethylenediaminetetraacetic acid (EDTA) yog ib qho tseem ceeb uas ua rau cov tshuaj sib xyaw ua ke. EDTA siv dav dav thiab siv tau ua cov tshuaj dawb hauv kev ua cov khoom siv xim, cov khoom siv zas xim, cov khoom siv ua fiber, cov khoom siv ntxiv rau cov khoom siv pleev xim, cov tshuaj tiv thaiv ntshav, cov tshuaj ntxuav tes, cov tshuaj stabilizer, cov tshuaj pib polymerization roj hmab. EDTA yog chelate uas yog cov khoom sib xyaw ua ke. Nws tuaj yeem tsim cov tshuaj sib xyaw ua ke uas yaj tau hauv dej nrog cov hlau alkali, cov hlau tsis tshua muaj thiab cov hlau hloov pauv. Ntxiv rau cov ntsev sodium, kuj tseem muaj cov ntsev ammonium thiab ntau yam ntsev xws li hlau, magnesium, calcium, tooj liab, manganese, zinc, cobalt, thiab txhuas. Txhua cov ntsev no muaj ntau yam kev siv. Tsis tas li ntawd, EDTA kuj tseem siv tau los tshem tawm cov hlau radioactive uas ua rau lub cev tsis zoo thiab ua lub luag haujlwm tshem tawm cov tshuaj lom. Nws kuj yog ib qho tshuaj kho dej. EDTA kuj tseem yog ib qho cim qhia tseem ceeb, tab sis nws siv los titrate hlau nickel, tooj liab, thiab lwm yam. Thaum siv, nws yuav tsum siv ua ke nrog ammonia los ua lub cim qhia. -
Disodium edetate dihydrate CAS: 6381-92-6
Disodium edetate dihydrate CAS: 6381-92-6
Disodium ethylenediaminetetraacetate (tseem hu ua disodium EDTA) yog ib qho tshuaj chelating muaj zog. Vim nws qhov ruaj khov siab thiab kev sib koom tes dav dav, nws tuaj yeem cuam tshuam nrog feem ntau cov hlau ions tshwj tsis yog alkali hlau (xws li hlau, tooj liab, calcium, magnesium thiab lwm yam multivalent ions) chelate los tsim cov dej-soluble complexes ruaj khov, tshem tawm cov hlau ions lossis cov tshuaj tiv thaiv tsis zoo los ntawm lawv.
Disodium EDTA yog ib qho hmoov dawb crystalline uas yaj tau hauv dej thiab yuav luag tsis yaj hauv ethanol thiab ether. Tus nqi pH ntawm nws cov kua dej yog li 5.3 thiab siv rau hauv cov tshuaj ntxuav tes, cov tshuaj zas xim, cov neeg ua haujlwm ua fiber, cov khoom siv ntxiv rau cov tshuaj pleev ib ce, cov khoom noj khoom haus ntxiv, cov chiv ua liaj ua teb thiab Mariculture, thiab lwm yam.
Disodium ethylenediaminetetraacetate siv rau hauv cov khoom noj, tshuaj, tshuaj pleev ib ce thiab lwm yam khoom. Disodium ethylenediaminetetraacetate uas yog qib zaub mov siv tau ua tus stabilizer, coagulant, antioxidant thiab preservative, thiab tuaj yeem tiv thaiv xim thiab tiv thaiv oxidation. , tiv thaiv corrosion synergy thiab stabilizing effect. -
Sodium edetate CAS: 64-02-8
Sodium edetate CAS: 64-02-8
Ethylenediaminetetraacetic acid (EDTA) muaj 4 pawg carboxyl thiab feem ntau tuaj yeem tsim disalt, trisalt thiab tetrasalt. Cov ntsev EDTA feem ntau suav nrog disodium ethylenediaminetetraacetate (EDTA-2Na), tetrasodium ethylenediaminetetraacetate (EDTA-4Na), dipotassium ethylenediaminetetraacetate (EDTA-2K) thiab ethylenediaminetetraacetic acid. Tripotassium (EDTA-3K). Tetrasodium ethylenediaminetetraacetate (EDTA-4Na) yog ib qho organic me me uas muaj ntau yam kev ua haujlwm uas muaj cov amino thiab carboxyl pawg. Nws yog siv dav hauv kev tshuaj xyuas tshuaj ua tus neeg sawv cev ua ke.
Cov khoom tshuaj lom neeg: Dawb crystalline hmoov. Soluble nyob rau hauv dej thiab acid, insoluble nyob rau hauv cawv, benzene thiab chloroform.
Tetrasodium EDTA yog ib qho tseem ceeb rau kev sib xyaw ua ke thiab cov hlau nplaum. Nws tuaj yeem siv rau hauv kev zas xim hauv kev lag luam textile, kev kho dej kom zoo, xim photosensitivity, tshuaj, tshuaj lom neeg txhua hnub, kev ua ntawv thiab lwm yam lag luam, ua ib qho additive, activator, purifier dej, metallic ion masking agent thiab activator hauv kev lag luam styrene-butadiene roj hmab. Hauv kev lag luam acrylic qhuav, nws tuaj yeem cuam tshuam cov hlau cuam tshuam thiab txhim kho cov xim thiab qhov ci ntawm cov ntaub dyed. Nws kuj tseem tuaj yeem siv rau hauv cov tshuaj ntxuav kua kom txhim kho qhov zoo ntawm kev ntxuav thiab txhim kho cov nyhuv ntxuav. -
Tris (dimethylaminomethyl) phenol CAS 90-72-2
Tris(dimethylaminomethyl)phenol
CAS 90-72-2
Txoj kev tsim khoom
Ntxiv phenol thiab 40% dimethylamine aqueous solution rau hauv lub lauj kaub tshuaj tiv thaiv, do thiab sib tov kom sib npaug, txias rau hauv qab 20 ° C, maj mam ntxiv 30% formaldehyde aqueous solution hauv qab do, thiab tswj kom ua tiav qhov ntxiv hauv qab 30 ° C. Txuas ntxiv do ntawm 25-30 ° C rau 1 teev, tom qab ntawd tsa qhov kub thiab txias mus rau 90-95 ° C thiab reflux rau 2 teev. Ntxiv ntsev kom cais cov dej theem, thiab cais cov roj txheej rau kev faib ua feem hauv qab qhov siab txo qis kom tau txais cov khoom tiav. Cov ntsiab lus ntawm cov khoom lag luam yog ntau dua 95%.
Tsos: Tsis muaj xim los yog daj daj daj. Ua kom kub hnyiab tau.
Siv ua tus neeg sawv cev rau thermosetting epoxy resins, adhesives, sealants rau laminate cov ntaub ntawv thiab pem teb, acid neutralizers thiab catalysts hauv kev tsim cov polyurethane. -
DIETHYLENE TRIAMINE (DETA) 111-40-0
DIETHYLENE TRIAMINE (DETA) 111-40-0
xwm
Cov kua daj hygroscopic pob tshab viscous nrog pungent ammonia tsw, flammable thiab muaj zog alkaline. Yaj hauv dej, acetone, benzene, ether, methanol, thiab lwm yam, insoluble hauv n-heptane, thiab corrosive rau tooj liab thiab nws cov alloys. Melting point -35 ℃. Boiling point 207 ℃. Relative density o. 9586. Flash point 94 ℃. Refractive index 1. 4810. Cov khoom no muaj reactivity ntawm secondary amines thiab yooj yim reacts nrog ntau yam compounds. Nws cov derivatives muaj ntau yam kev siv.
siv
Cov khoom no feem ntau yog siv ua cov kuab tshuaj thiab cov organic synthesis intermediate, thiab tuaj yeem siv los npaj cov neeg sawv cev epoxy resin curing, cov roj purifiers (rau CO2 tshem tawm), cov roj nplua nyeem ntxiv, emulsifiers, cov tshuaj photographic, surfactants, thiab cov neeg sawv cev tiav ntaub. , cov ntawv txhim kho, aminocarboxylic complexing agent, cov neeg sawv cev hlau chelating, cov hlau hnyav hydrometallurgy thiab cyanide-free electroplating diffusion agent, brightener, thiab cov khoom siv hluavtaws ion pauv thiab polyamide resin, thiab lwm yam. -
N,N-dimethylethanolamine CAS: 108-01-0
N,N-dimethylethanolamine CAS: 108-01-0
Nws yog ib qho kua tsis muaj xim nrog ib qho tsw ntxhiab tsw qab. Qhov txwv tsw: 0.25 ppm. Molecularweight 5 89.16; Boiling point = 133 ℃; Freezing/Meltingpoint = 259 ℃; Flash point = 41 ℃ (oc); Autoignitiontemperature 5 = 295 ℃. Cov kev txwv tawg: LEL 5 = 1.6%; UEL 5 = 11.9%. Kev txheeb xyuas kev phom sij (raws li NFPA-704M Rating System): Kev Noj Qab Haus Huv 2, Flammability 2, Reactivity 0. Yaj hauv dej.
Nws kuj hu ua dimethylaminoethanol. Cov kev tshawb fawb qhia txog cov khoom ua rau tawv nqaij khov kho, thiab muaj peev xwm txo cov kab zoo thiab cov pob khaus nrog rau cov voj voog tsaus nti hauv qab lub qhov muag. Nws suav hais tias yog tiv thaiv kev laus, thiab tiv thaiv kev o, thiab tau ua haujlwm tshem tawm cov dawb-radical. Kuj siv ua tus neeg tiv thaiv kev xeb, tus neeg sawv cev tiv thaiv kev ua kom tawv nqaij, cov tshuaj pleev xim, cov tshuaj pleev xim thiab cov neeg sawv cev sib cais. Nws kuj siv ua tus neeg nruab nrab rau cov khoom xyaw tshuaj thiab cov xim pleev xim. Nws ua haujlwm ua tus neeg sawv cev kho rau polyurethanes thiab epoxy resins. Ntxiv mus, nws siv ua tus neeg ntxiv rau dej boiler. Ntxiv rau qhov no, nws siv kho mob ua tus neeg txhawb nqa CNS.
