ʻO ke kumu no ka electrolysis rod graphite

ʻO ke kumu no ka electrolysis rod graphite

Nā kūlana no ka hana ʻana i ke kelepona electrolytic: DC mana lako. (1) DC mana lako. (2) ʻElua mau electrodes. ʻElua mau electrodes i hoʻopili ʻia i ka pou maikaʻi o ka lako mana. Ma waena o lākou, ʻo ka electrode maikaʻi i hoʻopili ʻia me ka pou maikaʻi o ka mana lako i kapa ʻia he anode, a ʻo ka electrode i hoʻopili ʻia me ka pole maikaʻi ʻole o ka mana lako i kapa ʻia ʻo ka cathode. (3) Electrolyte solution a i ʻole electrolyte hoʻoheheʻe ʻia.Electrolytesolution a solution 4, elua electrodes a me electrode reaction, anode (pili i ka pole pole o ka mana lako): anode reaction oxidation (pili i ka pou maikai o ka mana lako): oxidation reaction cathode (pili i ka pole ino o ka lako mana: ka hoʻoemi ʻana i ka cathode (pili ʻia i ka pou ʻino o ka lako mana): ka hoʻohaʻahaʻa ʻana (negative electrode i hoʻohui ʻia): hōʻemi pūʻulu 1: electrolysis pūʻulu 1: electrolysis o CuCl2 anode cathode chlorine.
     graphitehe aniani kalapona. He mea metala ʻole ia me ke kala hina hina, ʻulaʻula palupalu a metala. ʻO ka paʻakikī o Mohs he 1-2, ʻo ka gravity kikoʻī he 2.2-2.3, a ʻo kona ʻano nui he 1.5-1.8.
Hoʻomaka ka hoʻoheheʻe ʻana o ka graphite i ka wā e hiki ai i 3000 ℃ i loko o ka vacuum a hoʻoheheʻe. Ke hiki i ka 3600 ℃, hoʻomaka ka graphite e evaporate a sublimate. Hoʻemi mālie ka ikaika o nā mea maʻamau i ka wela kiʻekiʻe, ʻoiai ʻo ka ikaika o ka graphite ʻelua ʻoi aku ma mua o ka wela o ka lumi i ka wā i wela ai i 2000 ℃. Eia nō naʻe, ʻilihune ka pale ʻana o ka oxidation o ka graphite, a piʻi mālie ka nui o ka oxidation me ka piʻi ʻana o ka mahana.
ʻO kaka hoʻoili welaa he kiʻekiʻe loa ka conductivity o ka graphite. ʻO kona conductivity he 4 mau manawa kiʻekiʻe ma mua o ke kila kila, 2 mau manawa kiʻekiʻe ma mua o ke kila kalapona a me 100 mau manawa kiʻekiʻe ma mua o ka metala maʻamau. ʻAʻole i ʻoi aku kona conductivity thermal ma mua o nā mea metala e like me ke kila, ka hao a me ke kēpau, akā e emi pū me ka piʻi ʻana o ka mahana, ʻokoʻa ia mai nā mea metala maʻamau. Hiki i ka graphite ke lilo i adiabatic ma nā mahana like ʻole. No laila, hilinaʻi loa ka hana insulation thermal o ka graphite i ka wela kiʻekiʻe.
Loaʻa i ka graphite ka lubricity maikaʻi a me ka plasticity. ʻOi aku ka nui o ka friction coefficient o ka graphite ma mua o 0.1. Hiki ke hoʻomohala ʻia ka graphite i mau pepa hanu a ʻālohilohi. ʻO ka paʻakikī o ka graphite ikaika nui he mea paʻakikī ke hana me nā mea hana daimana.
Loaʻa i ka graphite ke kūpaʻa kemika, ka waikawa a me kakūʻē alkalia me ka hoʻoheheʻe ʻana i ka corrosion resistance. No ka loaʻa ʻana o ka graphite i nā waiwai maikaʻi loa, ua hoʻohana nui ʻia ia i ka ʻoihana hou.