Igama Lekhemikhali:1,3-Dimethylurea
I-Molecular Formula:I-C3H8N2O
Isisindo se-Molecular:88.11
Isakhiwo:
Inombolo ye-CAS: 96-31-1
Ukucaciswa
Ukubukeka:Okuqinile Okumhlophe
I-Assay(HPLC):95.0% min
Izinga Lokushisa Elincibilikayo: 102°C min N-methyluren(HPLC) 1.0% ubuningi
Amanzi: 0.5% ubuningi
I-Pharmaceutical intermediates, iphinde isetshenziswe ekukhiqizeni i-ejenti yokwelapha i-fiber.Isetshenziselwa imithi ukuze ihlanganise i-theophylline, i-caffeine ne-nificaran hydrochloride.
(1) igesi ye-methylamine idluliselwa ku-urea encibilikisiwe, futhi igesi ye-ammonia ekhululiwe iyamuncwa futhi itholakale.Ngemuva kokuthi umkhiqizo wokusabela usupholile, uyakhishwa futhi uhlanganiswe kabusha.
(2)i-carbon dioxide yalungiswa nge-gas-solid catalytic reaction nge-monomethylamine.
(3)ukusabela kwe-methyl isocyanate nge-methylamine.
Iphakheji kanye Nesitoreji
Ukupakisha ngesikhwama esingu-25kg, noma Gcina kuphela esitsheni sokuqala endaweni epholile enomoya omuhle.Ziqhelelanise nezinto ezingahambisani.Iziqukathi ezivulwa kufanele zivulwe ngokucophelelaivalwe kabusha futhi igcinwe imile ukuze ingavuzi.Gwema izikhathi zokulondoloza ezinde.
Amanothi
Imininingwane yomkhiqizo kuphela eyereferensi, ucwaningo kanye nokuhlonza.Ngeke sithwale umthwalo noma ingxabano yelungelo lobunikazi.
Uma unemibuzo kwezobuchwepheshe noma ukusetshenziswa, sicela uxhumane nathi ngesikhathi.