Soo saaraha Qiimaha Wanaagsan N,N-DIMETHYLFORMAMIDE(DMF) CAS 68-12-2
sharaxaad
Magaca ayaa ka yimid xaqiiqda ah in ay tahay beddelka dimethyl ee foramide (amide of formic acid), iyo labada kooxood ee methyl waxay ku yaalaan atamka N (nitrogen).N,N-DIMETHYLFORMAMID waa dareere aprotic ah (hydrophilic) oo karkarinaya, iyo Buuga Kiimikada ayaa kor u qaadi kara habka falcelinta SN2.N,N-DIMETHYLFORMAMID waxaa la soo saaray iyadoo la isticmaalayo formic acid iyo dimethylamine.N, N-DIMETHYLFORMAMID waa mid aan degganayn (gaar ahaan heerkulka sare) marka ay joogaan saldhigyo xooggan sida sodium hydroxide ama asiidh adag sida hydrochloric acid ama sulfuric acid, iyo hydrolyzes si formic acid iyo dimethylamine.Aad bay ugu xasilloon tahay hawadu iyo marka lagu kululeeyo karkarinta.Marka heerkulku ka sarreeyo 350 ℃, waxay lumin doontaa biyaha waxayna dhalin doontaa carbon monoxide iyo dimethylamine.N, N-DIMETHYLFORMAMID waa dareere aprotic ah oo wanaagsan, kaas oo milmi kara inta badan walxaha organic iyo kuwa aan organic ahayn, waxaana lagu khaldi karaa biyaha, khamriga, ethers, aldehydes, ketones, esters, hydrocarbons halogenated iyo hydrocarbons caraf udgoon, iwm.Dhammaadka si togan ee N, N-DIMETHYLFORMAMID molecule waxaa ku hareeraysan kooxo methyl ah, iyaga oo samaynaya caqabad adag, si aysan ions taban u soo dhowaan karin, laakiin kaliya ions togan ayaa la xidhiidha.Xayawaanka qaawan ayaa aad uga firfircoon anion-ka la xaliyay.Dareen-celin badan oo ionic ah ayaa si fudud loogu fuliyaa N, N-DIMETHYLFORMAMID marka loo eego dareerayaasha guud ee protic, tusaale ahaan, falcelinta karboxylates leh hydrocarbons halogenated ee N, N-DIMETHYLFORMAMID heerkulka qolka, waxay dhalin kartaa esters-soo-saarka sare, gaar ahaan ku habboon Isku-dubaridka esters sterically xannibay.
Synthesis.Laba dhig
amide,n,n-dimethyl-formicaci;Dimethylamidkyselinymravenci;dimethylamidkyselinymravenci;N,N-DIMETHYLFORMAMIDE,99.9+%,HPLCGRADE;NN-DIMETHYLFORChemicalbookMAMIDE99.8%ACS&;N,N-DIMETHYLFORMAMIDE,4X25ML;N,N-DIMETHYLFORMAMIDE,REAGEENT molecularbiology;N,N-DIMETHYLFORMAMIDENEUTRALMARKER*QASBI AH
Codsiyada DMF
DMF waa dareere wanaagsan oo loogu talagalay noocyo kala duwan oo polymers sare ah sida polyetylen, chloride polyvinyl, polyacrylonitrile, polyamide, iwm.Waxaa loo isticmaalaa samaynta filim caag ah;waxa kale oo loo isticmaali karaa sidii rinji-saarid si looga saaro rinjiga;waxa kale oo ay milmi kartaa qaar ka mid ah midabada milmi-yar, si ay midabadu u yeeshaan sifooyinka dheeha.DMF waxaa loo isticmaalaa soo saarista udgoonka iyo kala soocida iyo soo kabashada butadiene ee jajabyada C4 iyo isoprene ee jajabyada C5, waxaana sidoo kale loo isticmaali karaa sidii reagement wax ku ool ah oo loogu talagalay kala soocida qaybaha aan hydrocarbon-ka ee paraffin.Waxay leedahay xulashada wanaagsan ee milanka isophthalic acid iyo terephthalic acid: isophthalic acid waxay ku milmi kartaa DMF marka loo eego terephthalic acid, soo saarista dareeraha ama Crystallization qayb ahaan, labadaba waa la kala saari karaa.Warshadaha petrochemical, DMF waxa loo isticmaali karaa sidii gaas nuugaya si loo kala saaro oo loo nadiifiyo gaaska.Sida wakiilka lagu dhaqo Kiimikada ee warshadaha polyurethane, waxaa inta badan loo isticmaalaa soo saarista maqaarka qoyan ee qoyan;sida dareere ah ee warshadaha fiber akril, waxaa inta badan loo isticmaalaa in wax soo saarka qalalan qalalan ee fiber akril;warshadaha elektiroonigga ah sida deminta qaybo ka mid ah daasadda-dahaadhka ah iyo looxyada wareegga warshadaha kale waxaa ka mid ah sidayaal gaas khatar ah, dareere for crystallization daroogada, xabagta, iwm. sidoo kale dhexdhexaad muhiim ah oo ka mid ah isku-dhafka organic.Warshadaha sunta cayayaanka, waxaa loo isticmaali karaa in lagu soo saaro ciprofloxacin;Warshadaha dawooyinka, waxaa loo isticmaali karaa in lagu sameeyo iodine, doxycycline, cortisone, vitamin B6, iodine, quercetin, pyrantel, N-formylsarcomin, Oncoline, methoxyfen, benzodiazepine, cyclohexyl nitrosourea, furoflurouracil, hemostatic acid, bepartame, metrovitamine. chlorpheniramine, sulfonamides Production.DMF waxay leedahay saameyn catalytic ah oo ku saabsan falcelinta hydrogenation, fuuqbaxa, fuuqbaxa iyo fuuq-baxa, si heerkulka falcelinta hoos loo dhigo oo nadiifinta alaabta la hagaajiyo.
1. Waa dareere dabiici ah oo aad u wanaagsan, oo loo isticmaalo sida dareeraha polyurethane, polyacrylonitrile, iyo chloride polyvinyl, sidoo kale loo isticmaalo soosaar ahaan, sida alaabta ceeriin ee daawooyinka iyo sunta cayayaanka.
2. Loo isticmaalo sidii falanqeyn falanqeeye iyo dareere loogu talagalay vinyl resin iyo acetylene
3. Ma aha oo kaliya walxo kiimiko ah oo ceeriin ah oo leh adeegsiyo kala duwan, laakiin sidoo kale waa dareere aad u fiican oo leh isticmaalka ballaaran.DMF waa dareere wanaagsan oo loogu talagalay noocyo kala duwan oo polymers sare ah sida polyetylen, chloride polyvinyl, polyacrylonitrile, polyamide, iwm.Waxaa loo isticmaalaa samaynta filim caag ah;waxa kale oo loo isticmaali karaa sidii rinji-saarid si looga saaro rinjiga;waxa kale oo ay milmi kartaa qaar ka mid ah midabada milmi-yar, si ay midabadu u yeeshaan sifooyinka dheeha.DMF waxaa loo isticmaalaa soo saarista udgoonka iyo kala soocida iyo soo kabashada butadiene ee jajabyada C4 iyo isoprene ee jajabyada C5, waxaana sidoo kale loo isticmaali karaa sidii reagement wax ku ool ah oo loogu talagalay kala soocida qaybaha aan hydrocarbon-ka ee paraffin.Waxay leedahay xulashada wanaagsan ee milanka isophthalic acid iyo terephthalic acid: isophthalic acid waxay ku milmi kartaa DMF marka loo eego terephthalic acid, soo saarista dareeraha waxaa lagu fuliyaa dimethyl chemicalbook acid formamide Ama qayb ahaan crystallized, labada waa la kala saari karaa.Warshadaha petrochemical, DMF waxa loo isticmaali karaa sidii gaas nuugaya si loo kala saaro loona nadiifiyo gaaska.Dareen-celinta dabiiciga ah, DMF looma isticmaalo oo kaliya sida dareeraha falcelinta, laakiin sidoo kale dhexdhexaad muhiim ah oo ku saabsan isku-dhafka dabiiciga ah.Warshadaha sunta cayayaanka, waxaa loo isticmaali karaa in lagu soo saaro ciprofloxacin;warshadaha dawooyinka, waxaa loo isticmaali karaa in synthesize iodine, doxycycline, cortisone, vitamin B6, iodine, quercetin, pyrantel, N-formylsarcomin, Tumorine, Methoxyfen mustard, Bian nitrogen mustard, cyclohexyl nitrosourea, furoflurouracil, hemostatic acid, bepartame, , bilevitamin, chlorpheniramine, iwm DMF waxay leedahay saameyn catalytic ee falcelinta hydrogenation, fuuqbaxa, fuuqbaxa iyo fuuq-baxa, si heerkulka falcelinta hoos loo dhigo iyo nadiifinta alaabta la hagaajiyo.
4. dareere titration aan biyo lahayn.Ku milmaya vinyl iyo acetylene.Go'aaminta sawir-qaadista.Xalka chromatographic gaaska taagan (heerkulka ugu badan ee hawlgalka 50 ℃, dareeruhu waa methanol), kala soocida falanqaynta Kiimikada C2 ~ C5 hydrocarbons, oo kala saari kara caadiga ah, isobutene iyo cis, trans-2-butene.Falanqaynta haraaga sunta cayayaanka.Isku-dhafka dabiiciga ah.Isku-dhafka Peptide.Loogu talagalay warshadaha sawirada.
Tilmaamaha DMF
| Isku dhafka | Tilmaamid |
| Muuqashada | cad |
| Guud ahaan | ≥99.9% |
| Methanol | ≤0.001% |
| Midabka (PT-CO), Hazen | ≤5 |
| Biyaha,% | ≤0.05% |
| Birta, mg/kg | ≤0.05 |
| Aysiidh (HCOOH) | ≤0.001% |
| Aasaaska (DMA) | ≤0.001% |
| PH (25 ℃, 20% aqueous) | 6.5-8.0 |
| Dhaqdhaqaaqa (25 ℃, 20% aqueous), μs/cm | ≤2 |
Xiritaanka DMF
190kg/durbaan
Kaydinta waa inay ahaataa mid qabow, engegan oo hawo leh.
