Umenzi Ixabiso Elihle N,N-DIMETHYLFORMAMIDE(DMF) CAS 68-12-2

inkcazo emfutshane:

I-N,N-DIMETHYLFORMAMIDE ifinyeziwe njenge-DMF. Yikhompawundi eveliswa kukutshintshwa kweqela le-hydroxyl le-formic acid liqela le-dimethylamino, kwaye ifomula yemolekyuli yi-HCON(CH3)2. Lulwelo olungenambala, olucacileyo, olubila kakhulu olunevumba elincinci le-amine kunye noxinano oluhambelanayo lwe-0.9445 (25°C). Iqondo lokunyibilika -61 ℃. Iqondo lokubila 152.8 ℃. Iqondo lokutsha 57.78 ℃. Uxinano lomphunga 2.51. Uxinzelelo lomphunga 0.49kpa (3.7mmHg25 ℃). Iqondo lokutsha ngokuzenzekelayo yi-445°C. Umda wokuqhuma komphunga nomoya ngu-2.2 ukuya kwi-15.2%. Kwimeko yelangatye elivulekileyo kunye nobushushu obuphezulu, inokubangela ukutsha kunye nokuqhuma. Ingasabela ngamandla nge-sulfuric acid exineneyo kunye ne-fuming nitric acid kwaye ide iqhume. Ixutywa namanzi kunye nezinye izinyibilikisi zendalo. Sisinyibilikisi esiqhelekileyo kwiimpendulo zeekhemikhali. I-N,N-DIMETHYLFORMAMIDE ecocekileyo ayinavumba, kodwa i-N,N-DIMETHYLFORMAMIDE yodidi lweshishini okanye eyonakeleyo inevumba elifana nelentlanzi kuba iqulethe ukungcola kwe-dimethylamine.

I-CAS: 68-12-2

Thumela i-imeyile kuthi

Iinkcukacha zeMveliso

Iithegi zeMveliso

inkcazo

Eli gama livela kwinto yokuba kukutshintshwa kwe-formamide (i-amide ye-formic acid) nge-dimethyl, kwaye omabini la maqela e-methyl akwi-atom ye-N (nitrogen). I-N,N-DIMETHYLFORMAMID sisinyibilikisi se-aprotic esibila kakhulu (hydrophilic), kwaye i-Chemicalbook inokukhuthaza indlela yokusabela ye-SN2. I-N,N-DIMETHYLFORMAMID iveliswa kusetyenziswa i-formic acid kunye ne-dimethylamine. I-N,N-DIMETHYLFORMAMID ayizinzanga (ingakumbi kubushushu obuphezulu) xa kukho iziseko eziqinileyo ezifana ne-sodium hydroxide okanye ii-asidi eziqinileyo ezifana ne-hydrochloric acid okanye i-sulfuric acid, kwaye i-hydrolyzes ibe yi-formic acid kunye ne-dimethylamine. Izinzile kakhulu emoyeni kwaye xa ifudunyezwa ide ibile. Xa ubushushu buphezulu kune-350 ℃, iya kulahlekelwa ngamanzi kwaye ivelise i-carbon monoxide kunye ne-dimethylamine. I-N,N-DIMETHYLFORMAMID sisinyibilikisi esilungileyo se-aprotic polar, esinokunyibilikisa uninzi lwezinto eziphilayo nezingaphiliyo, kwaye sixutywa namanzi, ii-alcohols, ii-ethers, ii-aldehydes, ii-ketones, ii-esters, ii-halogenated hydrocarbons kunye nee-aromatic hydrocarbons, njl.njl. Isiphelo esichaziweyo kakuhle semolekyuli ye-N,N-DIMETHYLFORMAMID sijikelezwe ngamaqela e-methyl, esenza isithintelo se-steric, ukuze ii-ion ezingalunganga zingasondeli, kodwa zii-ions ezilungileyo kuphela ezidityanisiweyo. I-anion engenanto isebenza kakhulu kune-anion enyibilikisiweyo. Iimpendulo ezininzi ze-ionic zenziwa lula kwi-N,N-DIMETHYLFORMAMID kunakwi-protic solvents ngokubanzi, umzekelo, impendulo yee-carboxylates kunye nee-halogenated hydrocarbons kwi-N,N-DIMETHYLFORMAMID kubushushu begumbi, inokuvelisa ii-esters ezinemveliso ephezulu, ngakumbi ezifanelekileyo ekuhlanganiseni ii-esters ezithintelwe yi-sterically.

Ukwenziwa kwezinto ezifanayo

i-amide,n,n-dimethyl-formicaci; i-Dimethylamidkyselinymravenci; i-dimethylamidkyselinymravenci; i-N,N-DIMETHYLFORMAMIDE,99.9+%,HPLCGRADE; i-NN-DIMETHYLFORChemicalbookMAMIDE99.8%ACS&;N,N-DIMETHYLFORMAMIDE,4X25ML; N,N-DIMETHYLFORMAMIDE,MOLECULARBIOLOGYREANT; N,N-DIMETHYLFORMAMIDEENEUTRALMARKER*FORCAPILLARY

Izicelo ze-DMF

I-DMF sisinyibilikisi esilungileyo kwiintlobo ngeentlobo zeepolymers eziphezulu ezifana ne-polyethylene, i-polyvinyl chloride, i-polyacrylonitrile, i-polyamide, njl.njl., kwaye ingasetyenziselwa ukujikeleza okumanzi kweefayibha zokwenziwa ezifana neefayibha ze-polyacrylonitrile, kunye nokuhlanganiswa kwe-polyurethane; Isetyenziselwa ukwenza ifilimu yeplastiki; ingasetyenziselwa njengomcuphi wepeyinti wokususa ipeyinti; inganyibilikisa nezinye ii-pigment ezinyibilikayo kancinci, ukuze ii-pigment zibe neempawu zedayi. I-DMF isetyenziselwa ukukhupha i-aromatic kunye nokwahlula kunye nokubuyisa i-butadiene kwiifractions ze-C4 kunye ne-isoprene kwiifractions ze-C5, kwaye ingasetyenziselwa njenge-reagent esebenzayo yokwahlula izinto ezingezizo ii-hydrocarbon kwi-paraffin. Inokukhetha okuhle kokunyibilika kwe-isophthalic acid kunye ne-terephthalic acid: i-isophthalic acid inyibilika ngakumbi kwi-DMF kune-terephthalic acid, ukukhupha i-solvent okanye i-Crystallization engaphelelanga, ezi zimbini zingahlulwa. Kwishishini le-petrochemical, i-DMF ingasetyenziselwa njengesifunxi-gesi ukwahlula nokucokisa iigesi. Njengearhente yokunyanga yokuhlamba iChemicalbook kwishishini le-polyurethane, isetyenziswa kakhulu kwimveliso yesikhumba esenziwe ngolwelo esimanzi; njenge-solvent kwishishini le-acrylic fiber, isetyenziswa kakhulu kwimveliso yokujikeleza okomileyo kwe-acrylic fiber; kwishishini le-elektroniki njengokucima iindawo ezifakwe itin kunye neebhodi zesekethe Amanye amashishini aquka abathwali beegesi eziyingozi, izinyibilikisi ze-crystallization yamayeza, izincamathelisi, njl. Kwi-organic reactions, i-DMF ayisetyenziswa kakhulu nje kuphela njenge-solvent ye-reaction, kodwa ikwayindawo ebalulekileyo kwi-organic synthesis. Kwishishini le-pesticide, ingasetyenziselwa ukuvelisa i-ciprofloxacin; kwishishini le-pharmaceutical, ingasetyenziselwa ukwenza i-iodine, i-doxycycline, i-cortisone, i-vitamin B6, i-iodine, i-quercetin, i-pyrantel, i-N-formylsarcomin, i-Oncoline, i-methoxyfen, i-benzodiazepine, i-cyclohexyl nitrosourea, i-furoflurouracil, i-hemostatic acid, i-bepartame, i-megestrol, i-bilevita, i-chlorpheniramine, i-sulfonamides. I-DMF inefuthe lokutsala ingqalelo kwiimpendulo ze-hydrogenation, dehydrogenation, dehydration kunye ne-dehydrohalogenation, ukuze ubushushu bempendulo bube sezantsi kwaye ubunyulu bemveliso buphuculwe.

1. Sisinyibilikisi esilungileyo se-organic, esisetyenziswa njengesinyibilikisi se-polyurethane, i-polyacrylonitrile, kunye ne-polyvinyl chloride, kwaye sisetyenziswa njenge-extractant, njengezinto eziluhlaza zamayeza kunye nezibulali-zinambuzane.

2. Isetyenziswa njenge-reagent yohlalutyo kunye nesinyibilikisi se-vinyl resin kunye ne-acetylene

3. Ayisiyonto nje kuphela yekhemikhali esetyenziswa ngeendlela ezahlukeneyo, kodwa ikwayisombululi esibalaseleyo esisetyenziswa ngeendlela ezahlukeneyo. I-DMF sisisombululi esilungileyo kwiintlobo ngeentlobo zeepolymers eziphezulu ezifana ne-polyethylene, i-polyvinyl chloride, i-polyacrylonitrile, i-polyamide, njl.njl., kwaye ingasetyenziselwa ukujikeleza okumanzi kweefayibha zokwenziwa ezifana neefayibha ze-polyacrylonitrile, kunye nokuhlanganiswa kwe-polyurethane; Isetyenziselwa ukwenza ifilimu yeplastiki; ingasetyenziselwa nokuba ngumhluzi wepeyinti ukususa ipeyinti; inganyibilikisa nezinye ii-pigments ezinyibilikayo kancinci, ukuze ii-pigments zibe neempawu zeedayi. I-DMF isetyenziselwa ukukhupha i-aromatic kunye nokwahlula kunye nokubuyisela i-butadiene kwiinxalenye ze-C4 kunye ne-isoprene kwiinxalenye ze-C5, kwaye ingasetyenziselwa njenge-reagent esebenzayo yokwahlula izinto ezingezizo ii-hydrocarbon kwi-paraffin. Inokukhetha okuhle kokunyibilika kwe-isophthalic acid kunye ne-terephthalic acid: i-isophthalic acid inyibilika ngakumbi kwi-DMF kune-terephthalic acid, ukukhutshwa kwe-solvent kwenziwa kwi-dimethyl chemicalbook acid formamide. Okanye i-crystallized partly, ezi zimbini zinokwahlulwa. Kwishishini le-petrochemical, i-DMF ingasetyenziswa njengesifunxi segesi ukwahlula nokucokisa iigesi. Kwi-organic reactions, i-DMF ayisetyenziswa nje kuphela njengesinyibilikisi se-reaction, kodwa ikwasetyenziswa njenge-intermediate ebalulekileyo kwi-organic synthesis. Kwishishini le-pesticide, ingasetyenziselwa ukuvelisa i-ciprofloxacin; kwishishini lamayeza, ingasetyenziselwa ukwenza i-iodine, i-doxycycline, i-cortisone, i-vitamin B6, i-iodine, i-quercetin, i-pyrantel, i-N-formylsarcomin, i-Tumorine, i-Methoxyfen mustard, i-Bian nitrogen mustard, i-cyclohexyl nitrosourea, i-furoflurouracil, i-hemostatic acid, i-bepartame, i-megestrol, i-bilevitamin, i-chlorpheniramine, njl. I-DMF inefuthe lokubangela i-catalytic kwiimpendulo ze-hydrogenation, i-dehydrogenation, i-dehydration kunye ne-dehydrohalogenation, ukuze ubushushu bempendulo bube sezantsi kwaye ubunyulu bemveliso buphuculwe.

4. Isinyibilikisi se-titration esingengomanzi. Isinyibilikisi se-vinyl kunye ne-acetylene. Ukuqinisekiswa kwe-photometric. Isisombululo esisisigxina se-chromatographic yegesi (ubushushu obuphezulu bokusebenza yi-50 ℃, isinyibilikisi yi-methanol), ukwahlula Uhlalutyo lweChemicalbook C2 ~ C5 hydrocarbons, kwaye inokwahlula i-normal, isobutene kunye ne-cis, i-trans-2-butene. Uhlalutyo lwentsalela yezinambuzane. Ukwenziwa kwe-Organic. Ukwenziwa kwe-peptide. Kwishishini leefoto.

Inkcazo ye-DMF

Ikhompawundi	Inkcazo
Inkangeleko	cacile
Jikelele	≥99.9%
I-Methanol	≤0.001%
Umbala (PT-CO), Hazen	≤5
Amanzi,%	≤0.05%
I-iron, mg/kg	≤0.05
I-asidi (HCOOH)	≤0.001%
Isiseko (i-DMA)	≤0.001%
PH(25℃, 20% emanzini)	6.5-8.0
Ukuqhuba (25℃, 20% emanzini),μs/cm	≤2