Te Tukanga Whakarite Paerewa o te Waikawa Oxalic
Me tino whai te tukanga whakarite otinga i ngā tikanga matū o te taiwhanga. Tuatahi, tīpakohia ngā ipu i hangaia ki te polyethylene kiato-teitei (HDPE), he pai ake te ātete ki te waikawa oxalic i ngā kirihou noa. Ka taea te whakamahi i ngā ipu karāhe mō te wā poto, engari mā te rokiroki roa ka puta te waikura konutai, ka pā ki te pumau o te otinga.
I te wā e whakarite ana, me ine tonu te nui o te wai e hiahiatia ana i te tuatahi, kātahi ka ringihia mārire te waikawa oxalic ki te taha o te ipu. Kaua rawa e hurihia tēnei raupapa. E whakaatu ana ngā whakamātautau ko te tāpiri wai ki te waikawa kukū ka puta he tauhohenga wera tere ka eke ki te 80–100°C, ka taea ai e tēnei te arahi ngāwari ki ngā aituā tauhiuhi. Mā te whai i te raupapa tika ka noho te pikinga o te pāmahana ki roto i te awhe haumaru.
Mō te whakaoho, whakamahia he karāhe, he pae whakaoho polytetrafluoroethylene (PTFE) rānei, ka whakaoho tonu mō te 5–7 meneti kia mārama rawa te wairewa. Kia mahara ko te whakarewanga o te waikawa oxalic he tukanga werawera. Tukua te wairewa kua oti te whakarite kia tū mō te 20–30 meneti kia eke ki te taurite pāmahana rūma, ā, i taua wā ka pumau te pH ki te awhe pai o te 1.5–2.0.
Waikawa Oxalic – Zibo Anhao Chemical Co., Ltd.
He kaihanga pono a Zibo Anhao Chemical Co., Ltd. me te kaiwhakarato o te waikawa oxalic tino parakore (waikawa ethanedioic, CAS 144‑62‑7) kei Zibo, Shandong, Haina tōna tari matua. Kei te wātea tā mātou waikawa oxalic i roto i ngā āhua anhydrous (C₂H₂O₄, MW 90.03) me te dihydrate (H₂C₂O₄·2H₂O, MW 126.07), ā, ko te iti rawa o te parakore he 99.6%. Ka puta mai he tioata mārama kore tae, he paura tioata ma rānei, kāore he kakara, ā, he tino wairewa ki te wai me te etanoru.
I hangaia i raro i te mana whakahaere kounga tino pakari me ngā tukanga whaimana ISO 9001, ka tutuki i tā mātou waikawa oxalic ngā paerewa ahumahi me te reagent-grade me te iti o ngā poke (Cl⁻ ≤0.005%, SO₄²⁻ ≤0.10%, Fe ≤0.05%). Hei waikawa dicarboxylic maha-whakamahinga me te kaihoko whakaiti, ka mahi hei kaihoko chelating matua, kaihoko whakama, me te takawaenga matū. He whānuitia te whakamahinga i roto i te maimoatanga mata whakarewa (tango waikura, passivation), tae me te tā kakahu (mordant, bleach), tanning hiako, oro māpere, me te maimoatanga wai. He mea nui hoki mō te tango huānga whenua-onge, te hanga rauropi (tote oxalate/esters), takawaenga rongoā, me ngā hanganga hua horoi.
I Anhao Chemical, ka whakarite mātou i te pumau o te tuku nui, te tirotiro kounga pakari, me te takai ngāwari: putea 25kg, FIBC 500kg/1000kg, me ngā tāke ISO. Me ngā tekau tau o te wheako whakaputa matū me te kaweake, ka tukuna e mātou te waikawa oxalic ki ngā kiritaki puta noa i te Tonga-mā-rāwhiti o Āhia, Ūropi, te Waenganui Rawhiti, me tua atu, me te tautoko hangarau ngaio me te whakahaere tika. E whakapau kaha ana mātou ki te whakarato i ngā otinga waikawa oxalic kounga teitei, utu-pai e hāngai ana ki ō hiahia ahumahi me te arumoni.
