Sharaxaad Gaaban:


  • Tixraaca FOB Qiimaha:
    La gorgortami karo
    / Tan
  • Dekedda:Shiinaha
  • Shuruudaha Lacag-bixinta:L/C, T/T, Western Union
  • CAS:75-20-7
  • Faahfaahinta Alaabta

    Tags Product

    Magaca AlaabtaCalcium carbide

    Qaab molecular:C2Ca

    CAS Maya:75-20-7

    Qaab dhismeedka molecular Product

    Calcium carbide

    Guryaha Kiimikada:

    Kaalshiyam carbide (Qaabka molecule: CaC2), waa nooc ka mid ah alaabta ceeriin kiimikaad oo muhiim ah oo laga soo saaro farsamaynta kiimikada ee dhagaxa nuuradda.Sanadkii 1892, H. Maysan (Faransiiska) iyo H. Wilson (United State) waxay isku mar sameeyeen habka wax-soo-saarka kaarbiid ee kaalshiyamka oo ku salaysan Yaraynta foornada.Maraykanku wuxuu si guul leh u gaadhay wax soo saarka warshadaha 1895. Hantida kalsiyum carbide waxay la xiriirtaa nadiifnimadeeda.Wax soo saarkeeda warshaduhu waa inta badan isku dhafka calcium carbide iyo calcium oxide, sidoo kale waxaa ku jira raadad cadad ah baaruud, fosfooraska, nitrogen iyo wasakh kale.Iyada oo ay sii kordhayso maadooyinka wasakhda ah, midabkeedu wuxuu muujinayaa cawl, bunni ilaa madow.Barta dhalaalka iyo korantada korantada labaduba waxay hoos u dhacaan hoos u dhaca nadiifinta.Nadiifinta wax soo saarkeeda warshaduhu badanaa waa 80% iyadoo mp ay tahay 1800 ~ 2000 ° C.Heerkulka qolka, kuma falceliso hawada, laakiin waxay yeelan kartaa falcelinta oksaydhka ee ka sarreeya 350 ℃, waxayna yeelan kartaa falcelin leh nitrogen at 600 ~ 700 ℃ si ay u dhaliso cyanamide calcium.Kaalshiyam carbide, marka uu la kulmo biyo ama uumi, waxay soo saartaa acetylene waxayna sii daysaa xaddi badan oo kuleyl ah.CaC2 + 2H2O─ → C2H2 + Ca (OH) 2 + 125185.32J, 1kg oo kaarbiid calcium saafi ah ayaa soo saari kara 366 L of acetylene 366l (15 ℃, 0.1MPa).Sidaas darteed, kaydinteeda: Kaalshiyam carbide waa in si adag looga fogeeyo biyaha.Inta badan waxaa lagu xiraa weel bir ah oo xiran, mararka qaarkoodna waxaa lagu kaydiyaa bakhaar qallalan oo laga buuxiyo nitrogen haddii loo baahdo.

     

    Codsiga:

    Calcium carbide (CaC2) waxay leedahay ur u eg toon waxayna ku falcelisaa biyaha si ay u sameeyaan gaaska acetylene iyo calcium hydroxide iyo kulayl.Waagii hore, waxaa loo isticmaali jiray nalalka macdanta si ay si joogto ah u soo saaraan olol yar oo acetylene ah si ay u iftiimiso miinooyinka dhuxusha.

    Kaalshiyam carbide waxa loo istcimaalaa saafiyeye ahaan, fuuq-baxa birta, shidaalka samaynta birta, deoxidizer awood leh iyo isha gaaska acetylene.Waxaa loo isticmaalaa sidii qalab bilow ah oo loogu talagalay diyaarinta calcium cyanamide, ethylene, caag chloroprene, acetic acid, dicyandiamide iyo cyanide acetate.Waxaa loo isticmaalaa nalalka carbide, cannons-ka ay ku ciyaaraan sida madfac weyn-bang iyo kanon bamboo.Waxay la xiriirtaa fosfooraska kaalshiyamka waxaana loo isticmaalaa sabbaynaysa, is-qabadsiinta calaamadaha ciidamada baddaCalcium carbide waa kaarbiid-ka ugu habboon warshadaha sababtoo ah doorka muhiimka ah ee saldhigga warshadaha acetylene.Goobaha ay ka jirto shidaal yari.Calcium Carbidewaxaa loo isticmaalaa sidii alaabta bilawga ah ee soo saarista acetylene (1 kg ee carbide waxay soo saartaa ~ 300 litir acetylene), taas oo, iyaduna, loo isticmaali karo sidii dhismo loogu talagalay noocyo kala duwan oo kiimikooyin dabiici ah (tusaale vinyl acetate, acetaldehyde iyo acetic acid). ).Meelaha qaarkood, acetylene ayaa sidoo kale loo isticmaalaa in lagu soo saaro chloride vinyl, alaabta ceeriin ee wax soo saarka PVC.
    Isticmaal yar oo muhiim ahCalcium Carbidewaxay la xiriirtaa warshadaha bacrimiyeyaasha.Waxay la falgashaa nitrogen si ay u sameyso kalsiyum cyanamide, taas oo ah alaabta bilawga ah ee soo saarista cyanamide (CH2N2).Cyanamide waa wax soo saarka beeraha ee caadiga ah oo loo isticmaalo in lagu kiciyo caleenta hore.
    Calcium Carbide sidoo kale waxaa loo shaqaaleysiin karaa sida wakiilka wasakheeyaha si loo soo saaro birta kaarboon baaruudda hoose.Sidoo kale, waxa loo isticmaalaa sidii wakiil wax-yareeya si looga soo saaro biraha milixdooda, tusaale ahaan, hoos u dhigista tooska ah ee copper sulfide ilaa naxaas macdan ah.ololaya.Dheeraad ah, waxay ku lug leedahay dhimista copper sulfide ilaa naxaas macdan ah.


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