Tikanga Whakahāora Warowaihā Waikawa Oxalic
Mā tēnei tikanga ka whakamahia te māngaro me te huka hei rauemi mata, ā, ka whakapūkaratia ki te waikawa hauota i te 73–80 °C hei whakaputa waikawa oxalic. Hei tauira, ko te tukanga e whai ake nei: Ka whakamararatia te māngaro wāhanga papatipu 85% ki roto i te wairewa kei roto ko te 10% waikawa oxalic, te wai whaea rānei o ētahi atu hua takawaenga, ka whakamahanatia ki te waikawa, ka whakamahanahia mō ngā haora e 6 kia whiwhi tuatahi ai i te hua takawaenga huka. Kātahi ka tāpirihia te waikawa hauota me te whakakorikori rino-vanadium ki te 63 °C hei hanga wai anō, ā, ka whiwhihia te waikawa oxalic mā te whakamahine i muri i te tauhohenga.
Ko te tauhohenga matua ko te waikura o te māngaro hei kūhuka, kātahi ka waikuratia hei waikawa oxalic me te waikawa hauota i te aroaro o
Fe 3+ me V 2 O 5 V
ngā whakakorikori. Kei roto i tēnei tikanga ngā rauemi mata e wātea ana, te tukanga māmā, ngā tikanga whakahaere ngāwari, me te iti o te haumi, ā, ka taea e ngā whenua te whiriwhiri i ngā rauemi mata rerekē e ai ki ō rātou ake tikanga rauemi. Mō te hua me ngā painga ōhanga, ko te māngaro kānga te kōwhiringa pai rawa atu. Heoi, ko ōna ngoikoretanga ko te hua iti, te nui o te kai witi, te utu whakaputa nui, me te nui o ngā waikura hauota i roto i te hau hiku, he tino paitini, ā, ka nui te parahanga taiao.

He kaihanga ngaio Hainamana a Shandong Pulisi Chemical me te kaiwhakarato o te waikawa oxalic kounga ahumahi teitei-parakore (dihydrate, H₂C₂O₄·2H₂O) me te parakore iti rawa o te 99.6%.

Kakahu me te tae: Kaiwhakamā, āwhina whakapiri tae
Te tukatuka hiako: Kaiwhakatā me te tango pungarehu
Te maimoatanga whakarewa me te mata: Te tango waikura, te tango i te unahi, te whakakanapa māpere
Te Whakarewa: Te matū whakapūmau mō te tango i te whakarewa whenua onge
Hanganga rauropi: Takawaenga mō ngā matū pai, ngā kapia, me ngā whakakorikori

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