Olupese Iye Didara N,N-DIMETHYLFORMAMIDE(DMF) CAS 68-12-2
apejuwe
Orukọ naa wa lati otitọ pe o jẹ iyipada dimethyl ti formamide (amide of formic acid), ati awọn ẹgbẹ methyl mejeeji wa lori atomu N (nitrogen).N, N-DIMETHYLFORMAMID jẹ pola ti o ga-gbigbona (hydrophilic) aprotic epo, ati Kemikali le ṣe agbega ilana ifasilẹ SN2.N, N-DIMETHYLFORMAMID ni a ṣe ni lilo formic acid ati dimethylamine.N, N-DIMETHYLFORMAMID jẹ riru (paapaa ni iwọn otutu giga) niwaju awọn ipilẹ ti o lagbara gẹgẹbi sodium hydroxide tabi awọn acids ti o lagbara gẹgẹbi hydrochloric acid tabi sulfuric acid, ati awọn hydrolyzes si formic acid ati dimethylamine.O jẹ iduroṣinṣin pupọ ni afẹfẹ ati nigbati o ba gbona si farabale.Nigbati iwọn otutu ba ga ju 350 ℃, yoo padanu omi yoo ṣe ina monoxide carbon ati dimethylamine.N, N-DIMETHYLFORMAMID jẹ ohun elo pola aprotic ti o dara, eyiti o le tu pupọ julọ Organic ati awọn nkan inorganic, ati pe o jẹ miscible pẹlu omi, awọn ọti-lile, awọn ethers, aldehydes, ketones, esters, hydrocarbons halogenated ati awọn hydrocarbons aromatic, bbl.Ipari idiyele ti o daadaa ti N, N-DIMETHYLFORMAMID moleku ti wa ni ayika nipasẹ awọn ẹgbẹ methyl, ti o ṣe idiwọ steric, ki awọn ions odi ko le sunmọ, ṣugbọn awọn ions rere nikan ni o ni nkan ṣe.Anion ihoho jẹ pupọ diẹ sii lọwọ ju anion ti o yan.Ọpọlọpọ awọn aati ionic ni a ṣe ni irọrun diẹ sii ni N, N-DIMETHYLFORMAMID ju ni awọn olomi protic gbogbogbo, fun apẹẹrẹ, iṣesi ti carboxylates pẹlu halogenated hydrocarbons ni N, N-DIMETHYLFORMAMID ni iwọn otutu yara, le ṣe ina awọn esters ti o ga-giga, paapaa dara fun awọn kolaginni ti sterically idiwo esters.
Synthesis.Awọn itumọ ọrọ
amide, n, n-dimethyl-formicaci;Dimethylamidkyselinymravenci;dimethylamidkyselinymravenci;N,N-DIMETHYLFORMAMIDE,99.9+%,HPLCGRADE;NN-DIMETHYLFORChemicalbookMAMIDE99.8% ACS&;N, N-DIMETHYLFORMAMIDE,4X25ML;N,N-DIMETHYLFORMAMIDE,MOLEKULARBIOLOGYREAGENT;N,N-DIMETHYLFORMAMIDENEUTRALMARKER*FORCAPILLARY
Awọn ohun elo DMF
DMF jẹ ohun elo ti o dara fun orisirisi awọn polima giga gẹgẹbi polyethylene, polyvinyl chloride, polyacrylonitrile, polyamide, ati bẹbẹ lọ, ati pe o le ṣee lo fun yiyi tutu ti awọn okun sintetiki gẹgẹbi awọn okun polyacrylonitrile, ati iṣelọpọ ti polyurethane;O ti lo fun ṣiṣe fiimu ṣiṣu;o tun le ṣee lo bi olutọpa kikun fun yiyọ kikun;o tun le tu diẹ ninu awọn pigments kekere-solubility, ki awọn pigments ni awọn abuda kan ti awọn awọ.A lo DMF fun isediwon oorun didun ati ipinya ati imularada ti butadiene lati awọn ida C4 ati isoprene lati awọn ida C5, ati pe o tun le ṣee lo bi reagent ti o munadoko fun ipinya awọn paati ti kii-hydrocarbon lati paraffin.O ni yiyan ti o dara fun solubility ti isophthalic acid ati terephthalic acid: isophthalic acid jẹ diẹ tiotuka ni DMF ju terephthalic acid, isediwon olomi tabi Crystallization apa, awọn meji le ti yapa.Ninu ile-iṣẹ petrokemika, DMF le ṣee lo bi ohun mimu gaasi lati yapa ati ṣatunṣe awọn gaasi.Gẹgẹbi oluranlowo iwosan fun fifọ iwe-kemikali ni ile-iṣẹ polyurethane, o jẹ lilo julọ ni iṣelọpọ ti alawọ sintetiki tutu;bi awọn kan epo ni akiriliki okun ile ise, o ti wa ni o kun lo ninu awọn gbẹ alayipo gbóògì ti akiriliki okun;ninu awọn ẹrọ itanna ile ise bi a quenching ti Tinah-palara awọn ẹya ara ati Circuit lọọgan Miiran ise pẹlu ẹjẹ ti lewu ategun, nkanmimu fun oògùn crystallization, adhesives, bbl Ni Organic aati, DMF ti wa ni ko nikan o gbajumo ni lilo bi awọn kan epo fun awọn lenu, ṣugbọn tun ẹya pataki agbedemeji ni Organic kolaginni.Ni awọn ipakokoropaeku ile ise, o le ṣee lo lati gbe awọn ciprofloxacin;Ninu ile-iṣẹ oogun, o le ṣee lo lati ṣe idapọ iodine, doxycycline, cortisone, Vitamin B6, iodine, quercetin, pyrantel, N-formylsarcomin, Oncoline, methoxyfen, benzodiazepine, cyclohexyl nitrosourea, furoflurouracil, hemostatic acid, bepartame, metrovita, chlorpheniramine, iṣelọpọ sulfonamides.DMF ni ipa katalitiki ni awọn aati ti hydrogenation, gbigbẹ, gbigbẹ ati dehydrohalogenation, nitorinaa iwọn otutu ifasẹyin ti dinku ati pe o ni ilọsiwaju mimọ ọja.
1. O jẹ ohun elo ti o dara julọ ti o dara julọ, ti a lo bi epo fun polyurethane, polyacrylonitrile, ati polyvinyl chloride, ati pe a tun lo gẹgẹbi ohun elo, bi ohun elo aise fun awọn oogun ati awọn ipakokoropaeku.
2. Ti a lo bi reagent analitikali ati epo fun resini fainali ati acetylene
3. Kii ṣe ohun elo aise kemikali nikan pẹlu ọpọlọpọ awọn lilo, ṣugbọn tun jẹ epo ti o dara julọ pẹlu ọpọlọpọ awọn lilo.DMF jẹ ohun elo ti o dara fun orisirisi awọn polima giga gẹgẹbi polyethylene, polyvinyl chloride, polyacrylonitrile, polyamide, ati bẹbẹ lọ, ati pe o le ṣee lo fun yiyi tutu ti awọn okun sintetiki gẹgẹbi awọn okun polyacrylonitrile, ati iṣelọpọ ti polyurethane;O ti lo fun ṣiṣe fiimu ṣiṣu;o tun le ṣee lo bi olutọpa kikun fun yiyọ kikun;o tun le tu diẹ ninu awọn pigments kekere-solubility, ki awọn pigments ni awọn abuda kan ti awọn awọ.A lo DMF fun isediwon oorun didun ati ipinya ati imularada ti butadiene lati awọn ida C4 ati isoprene lati awọn ida C5, ati pe o tun le ṣee lo bi reagent ti o munadoko fun ipinya awọn paati ti kii-hydrocarbon lati paraffin.O ni yiyan ti o dara fun solubility ti isophthalic acid ati terephthalic acid: isophthalic acid jẹ diẹ tiotuka ni DMF ju terephthalic acid, iyọkuro epo ni a gbe jade ni dimethyl chemicalbook acid formamide Tabi ni apakan crystallized, awọn meji le niya.Ninu ile-iṣẹ petrokemika, DMF le ṣee lo bi ohun mimu gaasi lati yapa ati ṣatunṣe awọn gaasi.Ni awọn aati Organic, DMF kii ṣe lilo pupọ nikan bi epo fun iṣesi, ṣugbọn tun jẹ agbedemeji pataki ni iṣelọpọ Organic.Ni awọn ipakokoropaeku ile ise, o le ṣee lo lati gbe awọn ciprofloxacin;Ninu ile-iṣẹ oogun, o le ṣee lo lati ṣepọ iodine, doxycycline, cortisone, Vitamin B6, iodine, quercetin, pyrantel, N-formylsarcomin, Tumorine, Methoxyfen eweko, eweko Bian nitrogen, cyclohexyl nitrosourea, furoflurouracil, hemostatic acid, bepartame, , bilevitamin, chlorpheniramine, bbl DMF ni ipa ipadaliti kan ninu awọn aati ti hydrogenation, gbigbẹ, gbigbẹ ati dehydrohalogenation, nitorinaa iwọn otutu ifasẹyin ti dinku ati pe didara ọja naa dara si.
4. Aisi-olomi titration epo.Solusan fun fainali ati acetylene.Photometric ipinnu.Gaasi chromatographic adaduro ojutu (o pọju awọn ọna otutu 50 ℃, epo ni kẹmika), Iyapa Chemicalbook onínọmbà C2 ~ C5 hydrocarbons, ati ki o le ya deede, isobutene ati cis, trans-2-butene.Aloku ipakokoropaeku.Organic Synthesis.Peptide kolaginni.Fun ile ise aworan.
Iyipada ninu owo-owo DMF
| Apapo | Sipesifikesonu |
| Ifarahan | ko o |
| Gbogboogbo | ≥99.9% |
| kẹmika kẹmika | ≤0.001% |
| Awọ (PT-CO), Hazen | ≤5 |
| Omi,% | ≤0.05% |
| Irin, mg/kg | ≤0.05 |
| Àárá (HCOOH) | ≤0.001% |
| Ipilẹ (DMA) | ≤0.001% |
| PH(25℃, 20% olomi) | 6.5-8.0 |
| Iṣeṣe (25℃, 20% olomi), μs/cm | ≤2 |
Iṣakojọpọ ti DMF
190kg / ilu
Ibi ipamọ yẹ ki o wa ni itura, gbẹ ati ventilate.
