iindaba

I-N,N-dimethylformamide lulwelo olungenambala nolucacileyo. Lungaxutywa namanzi kunye nezinye izinyibilikisi ze-organic ngaphandle kwee-halogenated hydrocarbons, kwaye lunokunyibilika kakuhle kwiintlobo ngeentlobo zeekhompawundi ze-organic kunye ne-inorganic.

I-N,N-dimethylformamide (DMF) inoluhlu olubanzi lokusetyenziswa, ikakhulu kuquka ezi zinto zilandelayo:

‌1. Njengesinyibilikisi sendalo:

I-DMF sisinyibilikisi esilungileyo se-organic esinokunyibilikisa iintlobo ngeentlobo zeekhompawundi ze-organic kunye ne-inorganic kwaye sinokunyibilika okunamandla.

Kwishishini leekhemikhali zepolymer, isetyenziselwa ukujikeleza okumanzi kweefayibha zokwenziwa ezifana neefayibha zepolyacrylonitrile, ukwenziwa kweepolyurethanes, kunye nokwenziwa kweefilimu zeplastiki.

‌2. Njengezinto ezisetyenziswa njengekhemikhali:
I-DMF yindlela ebalaseleyo yokusabela kwiimpendulo ezininzi zeekhemikhali, enokunciphisa ubushushu bokusabela kwaye iphucule ubumsulwa bemveliso.

Kwi-organic synthesis, i-DMF, njenge-intermediate ebalulekileyo, ithatha inxaxheba ekuhlanganisweni kweendidi ezahlukeneyo zeekhompawundi ze-organic.

‌3. Ukusetyenziswa kwishishini lamayeza:
I-DMF isetyenziselwa ukwenza amayeza ahlukeneyo, afana ne-iodine pyrimidine, i-doxycycline, i-cortisone, njl.
Ishishini lamayeza lidla ngokusebenzisa i-DMF ekwenzeni amayeza, ingakumbi ukwenza amanye ama-molecule antsonkothileyo e-organic.

4. Izicelo kwezinye iindawo:
Kwishishini le-elektroniki, i-DMF isetyenziselwa ukuvelisa iifilimu ze-capacitor kunye neebhodi zesekethe eziprintiweyo.
Ingasetyenziswa njenge-analytical reagent, i-solvent ye-vinyl resins kunye ne-acetylene, i-extractant, kunye ne-raw material ye-pesticide chlordimeform.
Kwishishini le-petrochemical, i-DMF ingasetyenziswa njengesifunxi-gesi sokwahlula nokucokisa iigesi.

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Iipropati zeekhemikhali ze-N,N-Dimethylformamide
Iqondo lokunyibilika -61 °C (elikhanyayo)
i-alpha 0.94 º
Iqondo lokubila 153 °C (elikhanyayo)
uxinano 0.944 g/mL (elikhanyayo)
uxinano lomphunga 2.5 (xa kuthelekiswa nomoya)
uxinzelelo lomphunga 2.7 mm Hg (20 °C)
isalathisi sokuchasana n20/D 1.430(lit.)
Fp 136 °F
ubushushu bokugcina. Gcina kwi +5°C ukuya kwi +30°C.
amanzi anyibilikayo: axutywa
ulwelo lwefomu
i-pka -0.44±0.70 (Eqikelelweyo)
umbala we-APHA: ≤15
Ivumba elibi, ivumba elifana ne-ammonia liyabonwa kwi-100 ppm
I-polarity enxulumeneyo 0.386
PH 7 (200g/l, H2O, 20℃)
umda oqhumayo 2.2-16%(V)
Umda wevumba 1.8ppm
Ukunyibilika kwamanzi
I-Hygroscopic Enovakalelo
ubuninzi be-λ: 270 nm Ubuninzi: 1.00
λ: 275 nm Ubuninzi: 0.30
λ: 295 nm Ubuninzi: 0.10
λ: 310 nm Ubuninzi: 0.05
λ: 340-400 nm Ubuninzi: 0.01
I-Merck 14,3243
I-BRN 605365

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Ixesha leposi: Disemba-09-2024