N,N-Dimethylformamide CAS 68-12-2
Gabatarwar samfur
Ana kiran Dimethylformamide da DMF. Wani sinadari ne wanda ake maye gurbin rukunin hydroxyl na formic acid da rukunin dimethylamino, tare da dabarar kwayoyin halitta HCON(CH3)2. Ruwa ne mara launi kuma mai haske mai yawan tafasa mai ƙamshi mai haske na amine da kuma yawan da ya kai 0.9445 (25℃). Wurin narkewa -61℃. Wurin tafasa 152.8℃. Wurin walƙiya 57.78℃. Yawan tururi 2.51. Matsi na tururi 0.49kpa (3.7mmHg25℃). Wurin kunna wuta shine 445℃. Iyakar fashewar tururi da cakuda iska shine 2.2~15.2%. Fuskantar harshen wuta da zafi mai yawa na iya haifar da ƙonewa da fashewa. Yana iya yin martani mai ƙarfi tare da sinadarin sulfuric mai yawa da kuma sinadarin nitric mai hayaki har ma ya fashe. Ana iya mirgine shi da ruwa da yawancin sinadaran halitta. Littafin Kimiyya. Maganin narkewa ne gama gari don halayen sinadarai. Dimethylformamide tsantsa ba shi da wari, amma dimethylformamide mai daraja a masana'antu ko kuma wanda ya lalace yana da ƙamshi mai kama da kifi saboda yana ɗauke da ƙazanta na dimethylamine. Sunan ya fito ne daga gaskiyar cewa dimethyl ne madadin formic acid (amide na formic acid), kuma duka ƙungiyoyin methyl suna kan atom ɗin N (nitrogen). Dimethylformamide wani sinadari ne mai narkewa a cikin polar (hydrophilic) tare da babban wurin tafasa, wanda zai iya haɓaka tsarin amsawar SN2. Dimethylformamide an yi shi ne daga formic acid da dimethylamine. Dimethylformamide ba shi da ƙarfi (musamman a yanayin zafi mai yawa) a gaban tushe masu ƙarfi kamar sodium hydroxide ko acid masu ƙarfi kamar hydrochloric acid ko sulfuric acid, kuma yana hydrolyzes zuwa formic acid da dimethylamine.
Yana da ƙarfi sosai a cikin iska kuma idan aka dumama shi har ya tafasa. Idan zafin ya fi 350°C, yana rasa ruwa kuma yana samar da carbon monoxide da dimethylamine. N,N-dimethylformamide wani sinadari ne mai kyau na polar aprotic wanda zai iya narkar da yawancin abubuwan halitta da marasa halitta kuma ana iya haɗa shi da ruwa, alcohols, ethers, aldehydes, ketones, esters, halogenated hydrocarbons da aromatic hydrocarbons. . Ƙarshen ƙwayar N,N-dimethylformamide mai caji mai kyau yana kewaye da ƙungiyoyin methyl, yana samar da shinge na sararin samaniya wanda ke hana ions masu kyau kusantowa kuma yana haɗa ions masu kyau kawai. Anions marasa rai sun fi aiki fiye da anions masu narkewa. Yawancin halayen ionic sun fi sauƙin aiwatarwa a cikin N,N-dimethylformamide fiye da na protic gabaɗaya. Misali, carboxylates da halogenated hydrocarbons suna amsawa a cikin N,N-dimethylformamide a zafin ɗaki, suna iya samar da esters masu yawan amfanin ƙasa, kuma ya dace musamman don haɗa esters masu hana steryl.
Filin aikace-aikace
Dimethylformamide ruwa ne mara launi kuma mai haske. Ba wai kawai kayan sinadarai ne da ake amfani da su sosai ba, har ma da ingantaccen mai narkewa wanda ke da amfani iri-iri. Dimethylformamide muhimmin abu ne na albarkatun ƙasa a masana'antu na magunguna, sinadarai na fetur, fata da sauran masana'antu.
Bayanin gini
N,N-Dimethylformamide
CAS 68-12-2
Lambar CB: CB2854115
Tsarin kwayoyin halitta: C3H7NO
Nauyin kwayoyin halitta 73.09
Wurin narkewa: -61°C (haske)
Juyawa ta musamman: 0.94º
Tafasawar zafin jiki: 153°C (haske)
Yawan yawa: 0.944g/mL (lit.) V
Littafin Sinadarai na Tururi: 2.5 (vsair)
Matsi na tururi: 2.7mmHg (20°C) Ma'aunin haske: n20/D1.430 (lit.)
Wurin walƙiya: 136°
Ajiya da sufuri
Shiryawa: bisa ga buƙatun abokan ciniki
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Sabis na Abokin Ciniki na Alamar:
Cibiyar sadarwarmu ta ƙungiyar kula da asusun abokan ciniki ta JIT a China tana haɓakawa da aiwatar da tsare-tsare na musamman don samar wa abokan cinikinmu ingantaccen sinadarai na masana'antu da na musamman.
Fa'idodin ku:
● Sabis na abokin ciniki mai ƙarfi yana tallafawa sauƙaƙe hanyoyin gudanarwa, wanda ke haifar da tanadin lokaci da kuɗi.
● Cibiyar sadarwarmu ta kasar Sin da hanyoyin samar da kayayyaki masu inganci suna tabbatar da cewa ana samar da sinadarai masu inganci iri ɗaya ga abokan ciniki da ke da wurare daban-daban na masana'antu kuma suna ba da gudummawa ga tsaro a cikin tsarawa da amincin hanyoyin aiki.
● Ana ci gaba da inganta hanyoyinmu kuma ana daidaita su da canje-canjen tsari da buƙatun abokan cinikinmu.
Fifikon Sabis na Kula da Harkokin Kimiyya:
Sabis ɗin jigilar sinadarai yana da ƙwarewa sosai kuma ya kamata ya zama mafi kyau a ƙarƙashin tsarin Majalisar Dinkin Duniya, musamman ga jerin DGR Class. Muna samar da mafita ta musamman don inganta ayyukan jigilar kayayyaki da sabis na rukuni na tattarawa da lakabi masu dacewa ga manyan kamfanoninmu. Manyan tashoshin jiragen ruwanmu na China tare da rumbunan adana sinadarai na DGR sune don gudanar da sinadarai na musamman da kuma amfani da duk takaddun da suka shafi hakan.
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T. Shin kai kamfani ne na masana'anta ko na ciniki?
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