Waikawa WheroHe matū kore-waro, ko tōna tauira matū ko H3PO3. He paura tioata mā, he ngāwari ki te wairewa i roto i te wai me te etanoru, ā, ka āta waikuratia hei orthophosphate i te hau. He waikawa dibasic te Phosphite, he paku kaha ake tōna waikawa i te waikawa phosphoric, he kaha tōna āhuatanga whakaiti, he ngāwari ki te whakaiti i ngā katote hiriwa (Ag+) ki te konganuku hiriwa (Ag), ka taea te whakaiti i te waikawa whanariki ki te hauhā whanariki. He kaha tōna hygroscopicity me tōna ngāwari ki te tango, ā, he waikura. Ko te Phosphite te nuinga o te wā e whakamahia ana hei whakaiti, hei whakamārama nairona, engari e whakamahia ana hoki hei rauemi mata phosphite, hei takawaenga patu pepeke me ngā kaihoko maimoatanga wai phosphoric waro.
Ngā Āhuatanga:paura tioata mā. Ka wairewa i roto i te wai me te waipiro. Kiato: 1.651g/cm3, ira rewa: 73℃, ira kohua: 200℃.
TONO:
1.Waikawa whākawae whakamahia ana hei whakaputa i te tote phosphate tongi pērā i te pāhare pākawa, te ammonium phosphite me te konupūmā phosphite. Kei te whai wāhi nui ki te whakarite i ngā phosphite pērā i te aminotris (methylenephosphonic acid) (ATMP), te 1-hydroxyethane 1,1-diphosphonic acid (HEDP) me te 2-phosphonobutane-1,2,4-tricarboxylic Acid (PBTC), e kitea ana te whakamahinga i roto i te maimoatanga wai hei aukati unahi, hei aukati waikura rānei. E whakamahia ana hoki i roto i ngā tauhohenga matū hei kaiwhakaiti. Ko tōna tote, te phosphite mata, e whakamahia ana hei whakaū PVC. E whakamahia ana hoki hei matū mua i roto i te whakarite i te phosphine me te takawaenga i roto i te whakarite i ētahi atu matū phosphorus.
2.Waikawa whākawa(H3PO3, waikawa orthophosphorous) ka taea te whakamahi hei wāhanga tauhohenga mō te hanganga o ēnei e whai ake nei:
Ngā waikawa α-aminomethylphosphonic mā te Tauhohenga Maha-Whāngai Momo-Mannich
Ngā waikawa 1-aminoalkanephosphonic mā te amidoalkylation, ā, muri iho ko te hydrolysis
Ngā waikawa α-aminophosphonic kua tiakina-N (ngā phospho-isosteres o ngā waikawa amino tūturu) mā te tauhohenga amidoalkylation
3. Ngā Whakamahinga Ahumahi: Nō nā tata nei tēnei kaikohi i whakawhanakehia, ā, i whakamahia tuatahitia hei kaikohi motuhake mō te cassiterite mai i ngā konganuku he hanganga gangue matatini. I runga i te waikawa phosphonic, i whakawhanakehia e Albright rāua ko Wilson he whānuitanga o ngā kaikohi, ko te nuinga mō te whakamānu i ngā kohuke oxidic (arā, cassiterite, ilmenite me te pyrochlore). He iti noa iho ngā mōhiotanga mō te mahi a ēnei kaikohi. I whakaatuhia e ngā rangahau iti i mahia ki ngā konganuku cassiterite me te rutile, he nui te pahuka e puta mai ana i ētahi o ēnei kaikohi engari he tino whiriwhiri.
Tikanga whakaputa:
Ko ngā tikanga whakaputa ahumahi ko te whākōkōkō trichloroic me te tote waikawa phosphoric. Mā te tikanga hydrolysis ka tāpirihia mārire te wai ki te tauhohenga hydrolysis i raro i te ranunga o te trichloride hei whakaputa i te waikawa sub-phosphoric. Whai muri i te whakamahine, mā te ChemicalBook matao, ka hangaia te tioata me te tae rerekē, ā, ka hangaia te hua kua oti. Ko tana PCI3+3H2O → H3PO3+3HCL ka whakaputa i te hangarua hauwai pūhaumāota i te wā o te tukanga whakaputa, ka taea te hanga hei waikawa hydrochloric.
Haumarutanga:
Ngā āhuatanga mōrearea mura: ka mura i roto i te pū H; ka pirau te wera i ngā au paitini o te waikura phosphorus.
Ngā āhuatanga rokiroki me te kawe: te hauhautanga o te whare putunga i te pāmahana iti, maroke; Rokiroki motuhake mai i te kaihoko tuku-pore H me te kawakore.
Tākai: 25kg/Pēke
Rokiroki: Rokiroki ki roto i te pouaka kua kati pai, ātete ki te mārama, me te tiaki mai i te makuku.
Wā tuku: 27-Pepuere-2023