Igama lemveliso: I-calcium carbide
Ifomati yemolekyuli:C2ca
I-CAY Hayi:75-20-7
Isakhiwo seMveliso yeMolekyuli:
I-calcium carbide (Molecule formula: Cac2), luhlobo lwezixhobo ezibalulekileyo zekhemikhali ezivelisiweyo ezivela kwi-Limestone yelitye. Ngo-1892, H. Massan (isiFrentshi) kunye ne-H. Wilson (United State) ngaxeshanye kuphuhliswe indlela yokuvelisa i-calcium carbium carbim carcide esekwe ekunciphiseni kwesixhobo. I-United State yayiyifumene ngempumelelo imveliso yeshishini ngo-1895. Ipropathi ye-calcium carbide inxulumene nokucoceka kwayo. Imveliso yayo yemizi-mveliso yayingumxube we-calcium ye-calcium kunye ne-calcium oxide, kwaye inamaxabiso e-SULFUR, phosphorus, initrogen kunye nezinye izinto zokungcola. Ngomxholo onyukayo wokungcola, imibala imibala i-grey, emdaka ukuya emnyama. Indawo yokunyibilika kunye nokuqhutywa kombane zombini ukuncipha ngokutya kokucoceka. Ukucoceka kwemveliso yayo yemizi-mveliso kuhlala kuyi-80% nge-MP ekubeni ngu-1800 ~ 2000 ° C. Kumaqondo obushushu egumbi, ayiphenduli ngomoya, kodwa inokuba nendlela yokuphendula i-oxidation engaphezulu kwe-350 ℃, kwaye ndisabele nge-nitrogen kwi-600 ℃ ukuvelisa i-calcium i-cananamide. I-calcium carbide, xa iphuma namanzi okanye i-steam, ivelisa i-acetylene kwaye ikhuphe inani elikhulu lokufudumeza. Cac2 + 2H2O─ → 2 + C2h2 + 2 + 125185 LARCID Carcide Unokuvelisa i-366 l e-acetylene 366l (15 ℃, 0.1). Ngale ndlela, ukugcinwa kwayo: I-calcium carbide kufuneka igcinwe ngokungqongqo kude namanzi. Ihlala ipakishwe kwisitya sentsimbi etywiniweyo, kwaye ngamanye amaxesha igcinwe kwindawo eyomileyo yendawo yokugcina i-nitrogen xa kukho imfuneko.
I-calcium carbide (i-cac2) ine-odor-njenge-odor efana ne-GARS enamanzi ukwenza i-Acetylene igesi kunye ne-calcium hydroxide nobushushu. Kwixa elidlulileyo, isetyenziswe kwizibane zabasebenzi-mgodini ukuze ivelise idangatye elincinci le-acetylene ukubonelela ngokukhanyisela imigodi yamalahle.
I-calcium carbide isetyenziswa njengesiqhelo, isigculelo sensimbi, ipetroli esenziwa ngentsimbi, iDeoxizer enamandla kunye noMthombo we-Acetylene igesi. Isetyenziswa njengesixhobo sokuqala sokulungiselela i-calcium Syoamide, i-Ethylene, irabha ye-chloroprene, i-acetic acid, dicyandiamide kunye ne-danide i-cyatate. Isetyenziswa kwizibane ze-carbide, i-toy cannons ezinjenge-bang-bang cannon kunye ne-bamboo cannon. Inxulunyaniswa ne-calcium phosphide kwaye isetyenziswa ekuqhubeni i-ping, yokuzibeka kwi-NavalCalcium ye-NavalCalcium yeyona ndawo ifanelekileyo ye-carbide ngowona mveliso ibalulekileyo njengesiseko seshishini le-acetynene. Kwindawo apho kukho ukunqongophala kwePetroleum, I-calcium carbideis used as the starting material for the production of acetylene (1 kg of carbide yields ~300 liters acetylene), which, in turn, can be used as a building block for a range of organic chemicals (eg vinyl acetate, acetaldehyde and acetic acid ). Kwezinye iindawo, uAcetylene usetyenziselwa ukuvelisa i-vinyl chloride, izinto ezingafunekiyo zemveliso ye-PVC.
Ukusetyenziswa okuncinci kwe I-calcium carbide ihambelana nomzi-mveliso we-frilizers. Inika ingxelo nge-nitrogen ukwenza i-calcium i-calcium i-calcimide, yeyiphi na impahla yokuqala yokuveliswa kwe-Cyanamide (Ch2n2). I-Cyanamide yimveliso eqhelekileyo yezolimo esetyenziselwa ukukhuthaza ukubonwa kwangoko.
I-calcium carbide inokuqeshwa kwakhona njenge-arhente yokususa iarhente yokuvelisa i-calbon ye-carbon yentsimbi. Kwakhona, isetyenziswa njengearhente yokucutha ukuvelisa izinyithi ezivela kwiityuwa zazo, umz. iiflethi. Ngapha koko, ibandakanyeka ekunciphiseni i-sulfer yobhedu kwi-metric yobhedu.
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)