Uxinaniso lweDMF lucacisiwe: Ukujongwa nzulu kwiiPropati zoXinano lweDimethylformamide
1. Yintoni iDMF?
I-DMF, eyaziwa ngesiTshayina njenge-Dimethylformamide (i-Dimethylformamide), lulwelo olungenambala, olungafihliyo kunye nolwelo olune-hygroscopic ngokugqithisileyo olusetyenziswa kakhulu kwimichiza, kumayeza, kumashishini e-elektroniki kunye nakweyolukiweyo. Ine-solubility efanelekileyo kwaye inokunyibilika iintlobo ezahlukeneyo zezinto eziphilayo kunye ne-inorganic, ngoko idlala indima ebalulekileyo kwiinkqubo ezininzi zoshishino.
2. Ingcamango esisiseko yoxinaniso lweDMF
Uxinaniso lumlinganiselo wobunzima kumthamo wento, odla ngokubonakaliswa njengobunzima ngeyunithi yomthamo. Kushishino lwemichiza, kubalulekile ukuqonda ukuxinana kwe-DMF njengoko ichaphazela ngokuthe ngqo umlinganiso, uthutho kunye nokusetyenziswa kwe-substance.Ubuninzi be-DMF budla ngokubonakaliswa nge-g/cm³ okanye kg/m³. Kumaqondo obushushu aqhelekileyo (20°C), iDMF inoxinano olumalunga ne-0.944 g/cm³. Eli xabiso lingahluka kancinci ngokuxhomekeke kubushushu kunye nokucoceka.
3. Impembelelo yobushushu kwi-DMF density
Ubushushu bunempembelelo ebalulekileyo kubuninzi be-DMF. Njengoko iqondo lokushisa linyuka, ubuninzi be-DMF buhlala buyancipha. Oku kungenxa yentshukumo ekhawulezileyo yemolekyuli yolwelo, ekhokelela ekwandeni kwesithuba phakathi kweeathom ke ngoko ubunzima obuncinci ngokweyunithi yevolumu. Kwizicelo ezichanekileyo zoshishino, kuyimfuneko ukuqonda utshintsho kwi-DMF kwiqondo lokushisa elihlukeneyo. Ngokomzekelo, xa usenza i-chemical reaction kwiqondo lokushisa eliphezulu, utshintsho kwi-DMF density kufuneka luthathelwe ingqalelo ukuze kuqinisekiswe ukuchaneka kwe-metrological.
4. Impembelelo yoxinaniso lweDMF kwizicelo zamashishini
Uxinaniso lweDMF luneziphumo ezibambekayo ezibalulekileyo kwizicelo zamashishini. Ngokomzekelo, i-DMF isoloko isetyenziswa njenge-solvent kwiinkqubo zokulungiselela iziyobisi. Ubuninzi bayo buchaphazela ubungakanani kunye nokugxininiswa kwe-solvent, nto leyo echaphazela umgangatho kunye nokucoceka kwemveliso yokugqibela. Kwimveliso yeekhemikhali, ubuninzi be-DMF bunxulumene nokuthuthwa kwezinto eziphathekayo kunye nokugcinwa. Ukuqonda ukuxinana kweDMF kunokunceda ukwandisa inkqubo kunye nokunciphisa iindleko zemveliso.
5. Indlela yokulinganisa ubuninzi be-DMF ngokuchanekileyo?
Ukuze ufumane ubuninzi obuchanekileyo be-DMF, umlinganiselo usebenzisa i-densitometer echanekileyo ephezulu okanye ibhotile ethile yomxhuzulane iyimfuneko. Kwindawo yebhubhoratri, ukushisa rhoqo kunye nesampuli ecocekileyo kufuneka kugcinwe ukuqinisekisa ukuthembeka kweziphumo zokulinganisa. Kwiimeko zoshishino, ukubeka iliso ngexesha langempela nako kunokwenziwa kunye ne-densitometer ye-intanethi ukwenzela ukuba iiparitha zenkqubo zinokutshintshwa ngexesha elifanelekileyo.
6 Isishwankathelo
Uxinaniso lwe-DMF yenye yezinto eziphambili zomzimba ze-dimethylformamide, into ebalulekileyo yeekhemikhali, kunye nokuqonda kunye nokulawula iimpawu zayo zokuxinana kubalulekile kwimveliso kunye nokusetyenziswa kweekhemikhali. Ngomlinganiselo ochanekileyo kunye nohlalutyo lwesayensi, sinokusebenzisa ngcono i-DMF ukuphucula ukusebenza kakuhle kwemveliso kunye nokuqinisekisa umgangatho wemveliso. Kwiimeko ezahlukeneyo zoshishino, utshintsho kubuninzi be-DMF lunokuzisa imiphumo eyahlukeneyo, ngoko kubaluleke kakhulu ukuqonda okunzulu kunye nokulawula kwayo.
Ngohlalutyo olungentla, sinokubona ukuba ukulawula umgaqo wokutshintsha kunye nendlela yokulinganisa ubuninzi be-DMF sisiseko sokuqinisekisa inkqubela phambili yenkqubo yokuvelisa imichiza. Ndiyathemba ukuba eli nqaku linokukunceda uqonde ngcono ukubaluleka koxinaniso lweDMF kunye nokubonelela ngereferensi yemveliso kunye nophando lwakho.