Mai ƙera Kyawun Farashin N,N-DIMETHYLFORMAMIDE(DMF) CAS 68-12-2
bayanin
Sunan ya fito ne daga gaskiyar cewa shine maye gurbin dimethyl na foramide (amide na formic acid), kuma duka kungiyoyin methyl suna kan N (nitrogen) atom.N, N-DIMETHYLFORMAMID babban kaushi ne mai tafasa mai ƙarfi (hydrophilic) aprotic ƙarfi, kuma Littafin sinadarai na iya haɓaka tsarin amsawar SN2.N, N-DIMETHYLFORMAMID an samar da shi ta amfani da formic acid da dimethylamine.N, N-DIMETHYLFORMAMID ba shi da kwanciyar hankali (musamman a babban zafin jiki) a gaban tushe mai karfi kamar sodium hydroxide ko acid mai karfi irin su hydrochloric acid ko sulfuric acid, da hydrolyzes zuwa formic acid da dimethylamine.Yana da matukar kwanciyar hankali a cikin iska kuma lokacin zafi zuwa tafasa.Lokacin da zafin jiki ya fi 350 ℃, zai rasa ruwa kuma ya haifar da carbon monoxide da dimethylamine.N, N-DIMETHYLFORMAMID ne mai kyau aprotic iyakacin duniya sauran ƙarfi, wanda zai iya narkar da mafi Organic da inorganic abubuwa, kuma shi ne miscible da ruwa, alcohols, ethers, aldehydes, ketones, esters, halogenated hydrocarbons da aromatic hydrocarbons, da dai sauransu.Ƙarshen ƙimar ƙimar N, N-DIMETHYLFORMAMID yana kewaye da ƙungiyoyin methyl, suna haifar da tsangwama, ta yadda ions mara kyau ba zai iya kusanci ba, amma kawai ions masu kyau suna haɗuwa.Anion tsirara ya fi aiki fiye da solvated anion.Yawancin halayen ionic suna da sauƙin aiwatarwa a cikin N, N-DIMETHYLFORMAMID fiye da sauran kaushi na gabaɗaya, alal misali, amsawar carboxylates tare da halogenated hydrocarbons a cikin N, N-DIMETHYLFORMAMID a dakin da zafin jiki, na iya haifar da esters mai girma, musamman dacewa da da kira na sterically hana esters.
Synthesis.Ma’ana
amide,n,n-dimethyl-formicaci;Dimethylamidkyselinymravenci;dimethylamidkyselinymravenci;N,N-DIMETHYLFORMAMIDE,99.9+%,HPLCGRADE;NN-DIMETHYLFORChemicalbookMAMIDE99.8%ACS&;N, N-DIMETHYLFORMAMIDE,4X25ML;N,N-DIMETHYLFORMAMIDE,MOLECULARBIOLOGYREAGENT;N,N-DIMETHYLFORMAMIDENEUTRALMARKER*FORCAPILLARY
Abubuwan da aka bayar na DMF
DMF ne mai kyau ƙarfi ga daban-daban high polymers kamar polyethylene, polyvinyl chloride, polyacrylonitrile, polyamide, da dai sauransu, kuma za a iya amfani da rigar kadi na roba zaruruwa kamar polyacrylonitrile zaruruwa, da kuma kira na polyurethane;Ana amfani da shi don yin fim ɗin filastik;Hakanan za'a iya amfani dashi azaman mai cire fenti don cire fenti;Hakanan yana iya narkar da wasu ƙananan launi masu narkewa, ta yadda pigments suna da halayen rini.Ana amfani da DMF don hakar ƙanshi da rabuwa da dawo da butadiene daga ɓangarori na C4 da isoprene daga ɓangarori na C5, kuma ana iya amfani da su azaman ingantaccen reagent don rabuwa da abubuwan da ba hydrocarbon ba daga paraffin.Yana da kyau selectivity ga solubility na isophthalic acid da terephthalic acid: isophthalic acid ne mafi soluble a DMF fiye da terephthalic acid, sauran ƙarfi hakar ko m Crystallization, biyu za a iya raba.A cikin masana'antar petrochemical, ana iya amfani da DMF azaman abin sha don ware da kuma tace iskar gas.A matsayin wakili na warkarwa don wanke Littafin sinadarai a cikin masana'antar polyurethane, ana amfani da shi musamman wajen samar da rigar roba;a matsayin sauran ƙarfi a cikin acrylic fiber masana'antu, shi ne yafi amfani a bushe kadi samar da acrylic fiber;a cikin lantarki masana'antu a matsayin quenching na tin-plated sassa da kewaye allon Sauran masana'antu sun hada da dillalai na hatsari gas, kaushi ga miyagun ƙwayoyi crystallization, adhesives, da dai sauransu A Organic halayen, DMF ne ba kawai yadu amfani da matsayin sauran ƙarfi ga dauki, amma Har ila yau, mahimmancin tsaka-tsaki a cikin kwayoyin halitta.A cikin masana'antar magungunan kashe qwari, ana iya amfani dashi don samar da ciprofloxacin;A cikin Pharmaceutical masana'antu, shi za a iya amfani da su hada da aidin, doxycycline, cortisone, bitamin B6, aidin, quercetin, pyrantel, N-formylsarcomin, Oncoline, methoxyfen, benzodiazepine, cyclohexyl nitrosourea, furoflurouracil, hemostatic acid, bepartame, metrol, bipartame. chlorpheniramine, sulfonamides Production.DMF yana da tasiri mai tasiri a cikin halayen hydrogenation, dehydrogenation, dehydrogenation da dehydrohalogenation, don haka an rage yawan zafin jiki kuma an inganta samfurin samfurin.
1. Yana da kyakkyawan ƙarfi mai ƙarfi, ana amfani dashi azaman ƙarfi don polyurethane, polyacrylonitrile, da polyvinyl chloride, kuma ana amfani dashi azaman mai cirewa, azaman ɗanyen kayan magani da magungunan kashe qwari.
2. Ana amfani dashi azaman reagent na nazari da sauran ƙarfi don guduro vinyl da acetylene
3. Ba wai kawai kayan albarkatun sinadarai ba ne tare da amfani da yawa, amma har ma da ƙaƙƙarfan ƙarfi tare da amfani mai yawa.DMF ne mai kyau ƙarfi ga daban-daban high polymers kamar polyethylene, polyvinyl chloride, polyacrylonitrile, polyamide, da dai sauransu, kuma za a iya amfani da rigar kadi na roba zaruruwa kamar polyacrylonitrile zaruruwa, da kuma kira na polyurethane;Ana amfani da shi don yin fim ɗin filastik;Hakanan za'a iya amfani dashi azaman mai cire fenti don cire fenti;Hakanan yana iya narkar da wasu ƙananan launi masu narkewa, ta yadda pigments suna da halayen rini.Ana amfani da DMF don hakar ƙanshi da rabuwa da dawo da butadiene daga ɓangarori na C4 da isoprene daga ɓangarori na C5, kuma ana iya amfani da su azaman ingantaccen reagent don rabuwa da abubuwan da ba hydrocarbon ba daga paraffin.Yana da kyau selectivity ga solubility na isophthalic acid da terephthalic acid: isophthalic acid ne mafi soluble a DMF fiye da terephthalic acid, sauran ƙarfi hakar ne da za'ayi a dimethyl chemicalbook acid formamide Ko partially crystallized, biyu za a iya raba.A cikin masana'antar petrochemical, ana iya amfani da DMF azaman abin sha don ware da kuma tace iskar gas.A cikin halayen kwayoyin halitta, DMF ba wai kawai ana amfani dashi a matsayin mai narkewa don amsawa ba, amma har ma mahimmancin tsaka-tsaki a cikin haɗin kwayoyin halitta.A cikin masana'antar magungunan kashe qwari, ana iya amfani da shi don samar da ciprofloxacin;a cikin Pharmaceutical masana'antu, shi za a iya amfani da su hada iodine, doxycycline, cortisone, bitamin B6, aidin, quercetin, pyrantel, N-formylsarcomin, Tumorine, Methoxyfen mustard, Bian nitrogen mustard, cyclohexyl nitrosourea, furoflurouracil, hemostatic acid, bepartame, , bilevitamin, chlorpheniramine, da dai sauransu DMF yana da tasiri mai tasiri a cikin halayen hydrogenation, dehydrogenation, dehydrogenation da dehydrohalogenation, don haka an rage yawan zafin jiki da kuma samfurin da aka inganta.
4. Non-ruwa titration sauran ƙarfi.Mai narkewa don vinyl da acetylene.Ƙaddamar da hoto.Gas chromatographic tsayayye bayani (mafi yawan aiki zazzabi 50 ℃, sauran ƙarfi ne methanol), rabuwa Chemicalbook analysis C2 ~ C5 hydrocarbons, kuma zai iya raba al'ada, isobutene da cis, trans-2-butene.Binciken ragowar magungunan kashe qwari.Tsarin Halitta.Peptide kira.Don masana'antar daukar hoto.
Bayanan Bayani na DMF
| Haɗin gwiwa | Ƙayyadaddun bayanai |
| Bayyanar | bayyananne |
| Gabaɗaya | ≥99.9% |
| Methanol | ≤0.001% |
| Launi (PT-CO), Hazen | ≤5 |
| Ruwa,% | ≤0.05% |
| Iron, mg/kg | ≤0.05 |
| Acidity (HCOOH) | ≤0.001% |
| Basicity (DMA) | ≤0.001% |
| PH (25 ℃, 20% ruwa) | 6.5-8.0 |
| Ayyukan aiki (25 ℃, 20% ruwa), μs/cm | ≤2 |
Farashin DMF
190kg/drum
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