ʻAkika ʻakika /əˈsiːtɪk/, i kapa ʻia me ka ʻōnaehanawaikawa etanoika /ˌɛθəˈnoʊɪk/, he wai ʻakika, ʻaʻohe kala ahui organikme keke ʻano kemikaʻO CH3COOH (i kākau ʻia hoʻi ʻo CH3CO2H, C2H4O2, a i ʻole HC2H3O2).Winikaʻo ia hoʻi ma ka liʻiliʻi he 4% ka waikawa acetic ma ka nui, e hoʻolilo ana i ka waikawa acetic i mea nui o ka vīnega ma waho aʻe o ka wai. Ua hoʻohana ʻia ia, ma ke ʻano he ʻāpana o ka vīnega, ma o ka mōʻaukala mai ka liʻiliʻi o ke kenekulia ʻekolu BC.

ʻO ka waikawa acetic ka lua o ka mea maʻalahi loawaikawa karboksilika(ma hope owaikawa formic). He mea nui iamea hoʻohui kemikaa me nā kemika ʻoihana ma nā ʻano like ʻole, i hoʻohana nui ʻia i ka hana ʻana oʻāseta cellulosenokiʻiʻoniʻoni kiʻi,polyvinyl acetateno ka lāʻauke kāpili, a me nā olonā synthetic a me nā lole. I loko o nā hale, hoʻohana pinepine ʻia ka waikawa acetic diluted i lokonā mea hoʻohemo i ka scalingI loko o kaʻoihana meaʻai, ua kāohi ʻia ka waikawa acetic e kacode mea hoʻohui meaʻaiʻO E260 ma ke ʻano hemea hoʻoponopono ʻakikaa ma ke ʻano he mea ʻono. I lokokemika bio, kahui acetyl, i loaʻa mai ka waikawa acetic, he mea nui ia no nā ʻano ola āpau. Ke hoʻopaʻa ʻia icoenzyme A, he kikowaena ia no kametabolismonā kalaponaa menā momona.

ʻO ke koi honua no ka waikawa acetic e like me 2023 ma kahi o 17.88 milionanā tone metrici kēlā me kēia makahiki (t/a). ʻO ka hapa nui o ka waikawa acetic o ka honua e hana ʻia ma o kaka hoʻoheheʻe ʻana o ke kalaponaometanolaʻO kāna hana ʻana a me ka hoʻohana ʻana ma ka ʻoihana ma hope aku e hoʻopilikia ana i ke olakino o nā limahana, me ka hōʻino ʻana o ka ʻili a me nā ʻeha hanu mau loa mai ka hanu ʻana.

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