Acetylene (C2H2)

Nā palena ʻenehana

ʻO Acetylene, molecular formula C2H2, ʻike mau ʻia ʻo ka lanahu makani a i ʻole ke kinoea calcium carbide, ʻo ia ka lālā liʻiliʻi loa o nā pūhui alkyne. ʻO ka Acetylene he kinoea kala ʻole, ʻawaʻawa iki a hiki ke hoʻopau ʻia me nā hopena anesthetic nāwaliwali a me nā hopena anti-oxidation ma lalo o ka mahana maʻamau a me ke kaomi. Hiki ke hoʻoheheʻe ʻia i ka wai, hiki ke hoʻoheheʻe ʻia i ka ethanol, benzene, a me ka acetone. He ʻala ʻole ka acetylene maʻemaʻe, akā ʻo ka acetylene ʻoihana ke ʻala o ke kāleka no ka mea aia nā mea haumia e like me ka hydrogen sulfide a me ka phosphine. ʻO ka acetylene maʻemaʻe he kinoea ʻaʻohe waihoʻoluʻu a ʻala. Hiki ke pahū ikaika i ka wai a me ka paʻa a i ʻole ke kinoea a me kekahi kaomi. ʻO nā kumu e like me ka wela, ka haʻalulu, a me ka uila uila hiki ke hoʻoulu i ka pahū, no laila ʻaʻole hiki ke hoʻoheheʻe ʻia ma lalo o ke kaomi. Ka waiho ʻana a i ʻole ka lawe ʻana. Ma 15 ° C a me 1.5MPa, he kiʻekiʻe loa ka solubility i ka acetone, me ka solubility o 237g / L, no laila, ʻo ka acetylene ʻoihana ka acetylene i hoʻoheheʻe ʻia i ka acetone, i kapa ʻia hoʻi ka acetylene dissolved. No laila, i ka ʻoihana, i loko o nā pahu kila i hoʻopiha ʻia me nā mea porous e like me asbestos, kaomi ʻia ka acetylene i loko o ka mea porous ma hope o ka lawe ʻana i ka acetone no ka mālama ʻana a me ka lawe ʻana. Hiki i ke kinoea acetylene ke hana i ka wela kiʻekiʻe ke puhi ʻia. Hiki ke piʻi ka mahana o ka lapalapa oxyacetylene ma kahi o 3200 ℃. Hoʻohana pinepineʻia no kaʻokiʻana metala e like me ka hana moku a me ke kila; hoʻohana ʻia ia no ka hoʻohuihui kūlohelohe (hana ʻana i ka acetaldehyde, acetic acid, benzene, synthetic rubber, synthetic fibers, etc.), Synthetic medicine and chemical intermediates vinyl acetylene or divinyl acetylene; hoʻohana ʻia no ka hana ʻana i nā kinoea maʻamau e like me ke kinoea ʻaila transformer. Hoʻohana ʻia ke kinoea acetylene maʻemaʻe kiʻekiʻe no ka absorption atomic a me nā mea hana ʻē aʻe. Hoʻoheheʻe pinepine ʻia ke ʻano o ka acetylene i nā solvents a me nā mea porous a hoʻopiha ʻia i loko o nā cylinders kila. E kūʻai i loko o kahi hale kūʻai maʻalili. E mālama i ke ahi a me nā kumu wela. ʻAʻole pono ka mahana o ka mālama ʻana ma mua o 30 ° C. Pono e mālama kaʻawale ʻia mai nā oxidants, acids, a me nā halogens, a pale i ka waiho ʻana. E hoʻohana i nā kukui pahū a me nā keʻena ea. ʻAʻole ʻae ʻia ka hoʻohana ʻana i nā mea hana mechanical a me nā mea hana e maʻalahi i nā huna ahi. Pono e hoʻolako ʻia ka wahi e mālama ai me nā lako lapaʻau ulia pōpilikia.

Noi:

①Ke ʻoki ʻana a me ka wiliwili metala:

Ke wela ka acetylene, hiki ke hana i ka wela kiʻekiʻe. Hiki ke piʻi ka mahana o ka lapalapa oxyacetylene ma kahi o 3200 ℃, i hoʻohana ʻia no ka ʻoki ʻana a me ka wili ʻana i nā metala.

②Kemimi kumu kumu:

ʻO ka Acetylene ke kumu kumu no ka hana ʻana i ka acetaldehyde, acetic acid, benzene, synthetic rubber, a me nā fibers synthetic.

③ Hoʻokolohua

Hiki ke hoʻohana ʻia ka acetylene maʻemaʻe kiʻekiʻe i kekahi mau hoʻokolohua.

Pūʻolo maʻamau: