Mea Hana Maikaʻi Kumukuai N,N-DIMETHYLFORMAMIDE(DMF) CAS 68-12-2
wehewehe
No ka mea, ʻo ia ka dimethyl substitution o formamide (amide of formic acid), a aia nā pūʻulu methyl ʻelua ma ka atom N (nitrogen).ʻO N, N-DIMETHYLFORMAMID he mea hoʻoheheʻe aprotic polar (hydrophilic) kiʻekiʻe, a hiki i ka Chemicalbook ke hoʻoikaika i ka mīkini pane SN2.Hana ʻia ʻo N,N-DIMETHYLFORMAMID me ka hoʻohana ʻana i ka waika formic a me ka dimethylamine.ʻAʻole paʻa ka N,N-DIMETHYLFORMAMID (ʻoi loa i ka wela kiʻekiʻe) i mua o nā kumu ikaika e like me ka sodium hydroxide a i ʻole nā waikawa ikaika e like me hydrochloric acid a i ʻole sulfuric acid, a hydrolyzes i formic acid a me dimethylamine.Paʻa loa ia i ka ea a i ka wā i wela ai a hiki i ka paila.Ke kiʻekiʻe ka mahana ma mua o 350 ℃, e nalowale ka wai a hoʻoulu i ka carbon monoxide a me ka dimethylamine.ʻO N, N-DIMETHYLFORMAMID kahi mea hoʻoheheʻe polar aprotic maikaʻi, hiki ke hoʻoheheʻe i ka hapa nui o nā mea ola a me nā mea ʻole, a hiki ke hui ʻia me ka wai, nā waiʻona, nā eter, nā aldehydes, nā ketones, nā esters, nā mea halogenated hydrocarbons a me nā hydrocarbons aromatic, etc.Hoʻopuni ʻia ka hopena maikaʻi o ka molela N,N-DIMETHYLFORMAMID e nā pūʻulu methyl, e hana ana i kahi pale steric, no laila ʻaʻole hiki ke hoʻokokoke nā ion maikaʻi ʻole, akā pili wale nā ion maikaʻi.ʻOi aku ka ʻeleu o ka anion kahu ma mua o ka anion i hoʻopau ʻia.ʻOi aku ka maʻalahi o ka lawe ʻia ʻana o ka nui ionic reactions ma N,N-DIMETHYLFORMAMID ma mua o nā mea hoʻoheheʻe protic maʻamau, no ka laʻana, ka hopena o nā carboxylates me ka halogenated hydrocarbons i N,N-DIMETHYLFORMAMID i ka lumi wela, hiki ke hoʻohua i nā esters kiʻekiʻe, kūpono no ka ka hoʻohui ʻana o nā esters i hoʻopaʻa ʻia.
Synthesis.Synonyms
amide,n,n-dimethyl-formicaci;Dimethylamidkyselinymravenci;dimethylamidkyselinymravenci;N,N-DIMETHYLFORMAMIDE,99.9+%,HPLCGRADE;NN-DIMETHYLFORCemicicalbookMAMIDE99.8%ACS&;N,N-DIMETHYLFORMAMIDE,4X25ML;N,N-DIMETHYLFORMAMIDE,MOLECULARBIOLOGYREAGENT;N,N-DIMETHYLFORMAMIDENEUTRALMARKER*FORCAPILLARY
Nā noi o DMF
ʻO DMF kahi mea hoʻoheheʻe maikaʻi no nā ʻano polymers kiʻekiʻe e like me ka polyethylene, polyvinyl chloride, polyacrylonitrile, polyamide, a me nā mea ʻē aʻe, a hiki ke hoʻohana ʻia no ka wili pulu o nā fibers synthetic e like me ka polyacrylonitrile fibers, a me ka synthesis o polyurethane;Hoʻohana ʻia no ka hana kiʻiʻoniʻoni plastik;hiki ke hoʻohana ʻia ma ke ʻano he pena kala no ka wehe ʻana i ka pena;hiki iā ia ke hoʻoheheʻe i kekahi mau puaʻa haʻahaʻa haʻahaʻa, i loaʻa i nā puaʻa nā ʻano o nā mea pena.Hoʻohana ʻia ʻo DMF no ka unuhi ʻana a me ka hoʻokaʻawale ʻana a me ka hoʻihoʻi ʻana o ka butadiene mai nā hakina C4 a me ka isoprene mai nā hakina C5, a hiki ke hoʻohana ʻia ma ke ʻano he reagent kūpono no ka hoʻokaʻawale ʻana i nā ʻāpana non-hydrocarbon mai ka paraffin.Loaʻa iā ia ka koho maikaʻi no ka solubility o ka waikawa isophthalic a me ka waikawa terephthalic: ʻoi aku ka maʻemaʻe o ka isophthalic acid i DMF ma mua o ka terephthalic acid, solvent extraction a hapa Crystallization, hiki ke hoʻokaʻawale ʻia nā mea ʻelua.I ka ʻoihana petrochemical, hiki ke hoʻohana ʻia ka DMF ma ke ʻano he mea hoʻoheheʻe kinoea e hoʻokaʻawale a hoʻomaʻemaʻe i nā kinoea.Ma ke ʻano he lāʻau lapaʻau no ka holoi ʻana i ka Chemicalbook i ka ʻoihana polyurethane, hoʻohana nui ʻia i ka hana ʻana i ka ʻili synthetic pulu;ma ke ʻano he mea hoʻoheheʻe i loko o ka ʻoihana fiber acrylic, hoʻohana nui ʻia i ka hana ʻana i ka wili maloʻo o ka fiber acrylic;i loko o ka uila 'oihana e like me ke kinai ana o ka tin-plated 'āpana a me ka kaapuni papa 'ē aʻe 'oihana e lawe i ka pilikia kinoea, solvents no ka lāʻau crystallization, adhesives, etc. I ka organic reactions, DMF ole wale hoʻohana 'ia e like me ka'ūheheʻe no ka pane, akā. He mea koʻikoʻi nō hoʻi ia ma ka synthesis organik.I ka ʻoihana pesticide, hiki ke hoʻohana ʻia e hana i ka ciprofloxacin;i loko o ka ʻoihana lāʻau lapaʻau, hiki ke hoʻohana ʻia e synthesize iodine, doxycycline, cortisone, vitamin B6, iodine, quercetin, pyrantel, N-formylsarcomin, Oncoline, methoxyfen, benzodiazepine, cyclohexyl nitrosourea, furoflurouracil, hemostatic acid, bepartame,vitaevita, bepartame. chlorpheniramine, sulfonamides Hana ʻia.He hopena catalytic ka DMF i nā hopena o ka hydrogenation, dehydrogenation, dehydration a me ka dehydrohalogenation, no laila e hoʻohaʻahaʻa ʻia ka mahana hopena a hoʻomaikaʻi ʻia ka maʻemaʻe o ka huahana.
1. He mea hoʻoheheʻe organik maikaʻi loa ia, i hoʻohanaʻia e like me ka mea hoʻoheheʻe no ka polyurethane, polyacrylonitrile, a me ka polyvinyl chloride, a hoʻohanaʻia hoʻi ma keʻano he extractant, ma keʻano he mea maka no nā lāʻau lapaʻau a me nā pesticides.
2. Hoʻohana ʻia e like me ka analytical reagent a me ka solvent no ka vinyl resin a me ka acetylene
3. ʻAʻole ia he mea hoʻohana kemika wale nō me ka nui o ka hoʻohana ʻana, akā he mea hoʻoheheʻe maikaʻi loa me ka nui o nā hoʻohana.ʻO DMF kahi mea hoʻoheheʻe maikaʻi no nā ʻano polymers kiʻekiʻe e like me ka polyethylene, polyvinyl chloride, polyacrylonitrile, polyamide, a me nā mea ʻē aʻe, a hiki ke hoʻohana ʻia no ka wili pulu o nā fibers synthetic e like me ka polyacrylonitrile fibers, a me ka synthesis o polyurethane;Hoʻohana ʻia no ka hana kiʻiʻoniʻoni plastik;hiki ke hoʻohana ʻia ma ke ʻano he pena kala no ka wehe ʻana i ka pena;hiki iā ia ke hoʻoheheʻe i kekahi mau puaʻa haʻahaʻa haʻahaʻa, i loaʻa i nā puaʻa nā ʻano o nā mea pena.Hoʻohana ʻia ʻo DMF no ka unuhi ʻana a me ka hoʻokaʻawale ʻana a me ka hoʻihoʻi ʻana o ka butadiene mai nā hakina C4 a me ka isoprene mai nā hakina C5, a hiki ke hoʻohana ʻia ma ke ʻano he reagent kūpono no ka hoʻokaʻawale ʻana i nā ʻāpana non-hydrocarbon mai ka paraffin.Loaʻa iā ia ka koho maikaʻi no ka solubility o ka waikawa isophthalic a me ka waikawa terephthalic: ʻoi aku ka maʻalahi o ka waika isophthalic i DMF ma mua o ka waikona terephthalic, lawe ʻia ka hoʻoheheʻe ʻana i loko o ka dimethyl chemicalbook acid formamide A i ʻole i hoʻokaʻawale ʻia, hiki ke hoʻokaʻawale ʻia nā mea ʻelua.I ka ʻoihana petrochemical, hiki ke hoʻohana ʻia ka DMF ma ke ʻano he mea hoʻoheheʻe kinoea e hoʻokaʻawale a hoʻomaʻemaʻe i nā kinoea.I loko o nā mea kūlohelohe, ʻaʻole hoʻohana nui ʻia ʻo DMF ma ke ʻano he solvent no ka hopena, akā he mea koʻikoʻi hoʻi i ka synthesis organik.I ka ʻoihana pesticide, hiki ke hoʻohana ʻia e hana i ka ciprofloxacin;i ka ʻoihana lāʻau lapaʻau, hiki ke hoʻohana ʻia e synthesize iodine, doxycycline, cortisone, vitamin B6, iodine, quercetin, pyrantel, N-formylsarcomin, Tumorine, Methoxyfen mustard, Bian nitrogen mustard, cyclohexyl nitrosourea, furoflurouracil, hemomestatic acid, megestrola beparta. , bilevitamin, chlorpheniramine, etc. He hopena catalytic ka DMF i nā hopena o ka hydrogenation, dehydrogenation, dehydration a me ka dehydrohalogenation, i hoʻohaʻahaʻa ʻia ka mahana hopena a hoʻomaikaʻi ʻia ka maʻemaʻe o ka huahana.
4. Non-aqueous titration solvent.Mea hoʻoheheʻe no ka vinyl a me ka acetylene.Hoʻoholo kiʻi kiʻi.ʻO ke kinoea chromatographic stationary solution (ʻoi loa ka wela o ka hana 50 ℃, he methanol ka mea hoʻoheheʻe), hoʻokaʻawale ʻana i ka puke Kimia C2 ~ C5 hydrocarbons, a hiki ke hoʻokaʻawale i ka maʻamau, isobutene a me cis, trans-2-butene.Ka nānā ʻana i ke koena pesticide.Hoʻohui ʻia.ʻO ka hoʻohuihui peptide.No ka ʻoihana kiʻi.
Hōʻike o DMF
Huihui | Hōʻike |
Ka nana aku | maopopo |
Generala | ≥99.9% |
Methanol | ≤0.001% |
Kala (PT-CO), Hazen | ≤5 |
wai,% | ≤0.05% |
Ka hao, mg/kg | ≤0.05 |
Kaʻakika(HCOOH) | ≤0.001% |
Ke kumu (DMA) | ≤0.001% |
PH(25 ℃, 20% wai) | 6.5-8.0 |
Conductivity (25 ℃, 20% wai), μs/cm | ≤2 |
Hoʻopili ʻia o DMF
190kg / pahu
Pono ka waiho ʻana ma kahi anuanu, maloʻo a ventilate.