Igama lemveliso:I-Tetrarahydrofuran
Ifomati yemolekyuli:C4h8o
I-CAY Hayi:I-109-99-9-9
Isakhiwo seMveliso yeMolekyuli:
I-Tetrarahydrofuran (thf) ingenamibala, i-thf ye-thtolaile ene-ethereal okanye i-acetonen iphunga kwaye ingena ncamango. Ukugcina ixesha elide kunxibelelwano nomoya kunye nokungabikho kwe-antioxidant kunokubangela i-thf ukubola kwiPeroxides eqhumayo.
I-Tetrarahydrofuran isetyenziswa ekwenzeni i-polymers kunye nezolimo, amayeza, kunye neekhemikhali zentengiso. Imisebenzi yemveliso idla ngokuhlala ikwinkqubo evaliweyo okanye iphantsi kolawulo lwenjineli ezithintela umda wokuveliswa komgangatho kunye nokukhululwa kwindalo. I-thf ikwasetyenziswa njengesinyibilikisi (umz. Nangona i-thf ifumaneka ngokwemvelo kwi-arma yekofu, i-chickped chickpeas, kunye nenkukhu ephekiweyo, ukuboniswa kwendalo akulindelanga ukuba ibe yingozi enkulu.
I-Butylene Oxide isetyenziswa njenge-fumigant kunye ne-indomxration kunye nezinye izinto ezihlanganisiweyo. I-Preyto ilungisa ipetroli malunga nentlonipho yokwakha imibala.
I-Tetrarahydrofuran isetyenziswa njengezithambeka zenyibiliki, iiVinyls, kunye neebhlomeni eziphezulu; Njengomntu ophakathi kwe-grgardre nakwi-synthesuisus suid acid kunye ne-byyrolactone.
I-Tetrarahydrofuran isetyenziswa ngokuyintloko (80%) ukwenza i-polytetramethylene ither gells, isiseko sePolymer esisetyenziswa ngokuyintloko se-Elastomeric Flytomes (umz. Intsalela (20%) isetyenziswa kwizicelo zeSolvent (umz.
I-cheswin inokubonelela ngoluhlu olubanzi lwee-hydrocarbons ze-chydrocarbons kunye neechimi zemichiza kubathengi bemizi-mveliso.Ngaphambi koko, nceda ufunde le ngcaciso ilandelayo malunga neshishini kunye nathi:
1. Ukhuseleko
Ukhuseleko yinto yethu ephambili. Ukongeza ekunikezeleni abathengi ngolwazi malunga nokusetyenziswa okukhuselekileyo nokusingqongileyo kweemveliso zethu, sizibophelela ekuqinisekiseni ukuba umngcipheko wokukhuseleka kwabasebenzi kunye neekhontrakthi zincitshiswa ubuncinci kwaye zincitshiswe ubuncinci bezinto ezifanelekileyo. Ke ngoko, sifuna ukuba umthengi aqinisekise ukuba imigangatho yokhuseleko efanelekileyo kwaye ifezekisiwe ngaphambi kokuba ihanjiselwe (nceda ujonge kwisihlomelo se-HISCEXIX ngokwemigaqo ngokubanzi yentengiso engezantsi). Iingcali zethu ze-HZE zinokubonelela ngesikhokelo kule migangatho.
I-2. Indlela yokuhambisa
Abathengi banoku-odola kwaye bahambise iimveliso ezivela kwiComwin, okanye banokufumana iimveliso kwisityalo sethu semveliso. Iindlela ezikhoyo zothutho zibandakanya ilori, uloliwe okanye izithuthi ezininzi (iimeko ezahlukeneyo ziyasebenza).
Kwimeko yeemfuno zabathengi, sinokuchaza iimfuno zebhanti okanye iitanki kwaye zisebenzise imigangatho yoKhuseleko eKhuseleko / yokuPhononongwa kunye neemfuno.
I-3. Ubuncinci besixa
Ukuba uthenga iimveliso kwiwebhusayithi yethu, ubuncinci begama le-odolo ziitoni ezingama-30.
4.Ke
Indlela yokuhlawula esemgangathweni isuswe ngqo kwiintsuku ezingama-30 ukusuka kwi-invoice.
I-5. Uxwebhu lokuHanjiswa
La maxwebhu alandelayo anikwa ukuhanjiswa ngalunye:
· Offill ye-lading, i-CMR Daybill okanye olunye uxwebhu olufanelekileyo lwezothutho
Kokwenza uvavanyo lohlalutyo okanye ukuvumelana (ukuba kuyafuneka)
Amaxwebhu ahambelana noxwebhu oluhambelana nokuhambelana nemigaqo
Amaxwebhu esiko ngokuhambelana nemigaqo (ukuba iyafuneka)