Ke ʻano hana hoʻoheheʻe kalapona waikawa Oxalic
Hoʻohana kēia ʻano hana i ka starch a me nā kō ma ke ʻano he mea maka a hoʻomake iā lākou me ka waikawa nitric ma 73-80 °C e hana i ka waikawa oxalic. Ma ke ʻano he laʻana, penei ke kaʻina hana: Hoʻopuehu ʻia ka 85% o ka starch i loko o kahi hopena wai e loaʻa ana he 10% oxalic acid a i ʻole ka wai makuahine o nā huahana waena ʻē aʻe, hoʻomehana ʻia me ka waikawa, a hoʻihoʻi ʻia no 6 mau hola e loaʻa mua ai ka glucose huahana waena. A laila, hoʻohui ʻia ka waikawa nitric a me kahi mea hoʻoulu hao-vanadium ma 63 °C no ka hydrolysis hou aku, a loaʻa ka waikawa oxalic ma o ka hoʻomaʻemaʻe ʻana ma hope o ka hopena.
ʻO ka hana nui ka hydrolysis o ka starch i loko o ka glucose, a laila hoʻomake ʻia i ka waikawa oxalic me ka waikawa nitric i ke alo o
ʻO Fe 3+ a me V 2 O 5 V
nā mea hoʻoulu. Loaʻa i kēia ʻano hana nā mea maka i loaʻa koke, ke kaʻina hana maʻalahi, nā kūlana hana maʻalahi, a me ka hoʻopukapuka kālā haʻahaʻa, a hiki i nā ʻāina ke koho i nā mea maka like ʻole e like me kā lākou mau kūlana kumuwaiwai ponoʻī. Ma ke ʻano o ka hua a me nā pono waiwai, ʻo ka palaoa kulina ka koho maikaʻi loa. Eia nō naʻe, ʻo kona mau hemahema e komo pū me ka hua haʻahaʻa, ka hoʻohana nui ʻana i ka palaoa, ke kumukūʻai hana kiʻekiʻe, a me ka nui o nā oxides nitrogen i loko o ke kinoea huelo, he mea ʻawahia loa ia a hoʻoulu i ka haumia koʻikoʻi o ke kaiapuni.

He mea hana ʻoihana Kina ʻo Shandong Pulisi Chemical a he mea hoʻolako i ka waikawa oxalic kiʻekiʻe o ka ʻoihana (dihydrate, H₂C₂O₄·2H₂O) me ka maʻemaʻe haʻahaʻa loa he 99.6%.

ʻO ka lole a me ka hoʻoluʻu ʻana: Mea hoʻokeʻokeʻo, mea kōkua hoʻopaʻa kala
Ka hana ʻili: Mea hoʻokala a hoʻohemo i ka lehu
Ka mālama ʻana i ka metala a me ka ʻili: Wehe ʻana i ka popo, wehe ʻana i ka unahi, hoʻowali ʻana i ke kinikini
Metallurgy: Mea hoʻoheheʻe no ka unuhi ʻana i ka metala honua laha ʻole
Hana ʻano organik: Waena no nā kemika maikaʻi, nā resins, a me nā mea hoʻoulu

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