Thaum calcium carbide (cac₂) sib cuam tshuam nrog dej (h₂o), tshuaj lom neeg siv roj av (ciaj ua si
Cov kev sib npaug:
Cac₂ + 2 h₂o → c₂h₂ + Ca (Oh) ₂
Dab tsi tshwm sim thaum lub sijhawm no?
- Acetylene roj ntau lawm: cov roj cua yog tsim tawm, uas tau siv hauv vuam, teeb pom kev zoo, thiab kev tsim tshuaj. Thaum igned, acetylene ua rau cov nplaim ci ntsa iab nrog kub.
- Tsim ntawm calcium hydroxide (hydrated txiv qaub): Qhov no yog ib qho quav yeeb yaj kiab uas tuaj yeem ua rau tawv nqaij khaus thiab kub hnyiab rau kev tiv tauj. Tom qab cov tshuaj tiv thaiv, ib tug dawb, powdery lossis gel-zoo li residue nyob tom qab.
- Cov neeg tawm tsam kub (exothermic cov tshuaj tiv thaiv): Qhov kev txheeb cuam tshuam nrog tshav kub, uas tuaj yeem ua rau cov txheej txheem kev puas tsuaj yog tias tsis tswj hwm kom tsim nyog.
Cov ntawv thov cov tshuaj tiv thaiv no:
- Ntau lawm acetylene rau vuam thiab tshuaj schtesis.
- Carbide teeb txawb, uas tau siv nyob rau hauv tsuas yog thiab caving.
- Txiv hmab txiv ntoo ripening, txawm hais tias txoj kev no tau txiav txim siab tsis zoo vim muaj peev xwm impurities.
