Tuatahi, kāore te muka whatu e wehi i te wai nā te mea he mea tiaki. Ina mirohia te muka whatu ki roto i te taura, e rua ngā whakaritenga tiaki mō te muka whatu: ko tētahi he iti ake te taumahatanga o te muka whatu; ko tētahi me ātete te muka whatu. Ko te paparanga o waho o te taura muka whatu he uhi kirihou, ko te paparanga o roto he uhi whakarewa, ā, ko te paparanga o roto he paninga ārai-wai e pupuhi ana ina pā ki te wai. Ko te uho o te taura he mea here ki te hiri me ngā muka whatu.
E whā ngā tatau ā-wai o te taura whatu, arā: te taupoki kirihou, te taupoki whakarewa, te paparanga ārai-wai, me te paparanga hinu.
Nā, ko te pātai, kei te wehi te matua muka i te wai? Ehara i te mea he karāhe noa iho, he aha te mea nui o te wai?
Ko te mea pono, e wehi ana ia i te wai.
Tērā pea koe e miharo he aha ngā karāhe i roto i ngā puna ika me ngā matapihi o tō whare kāore e wehi i te wai engari he ātete-wai, ā, he aha hoki i hangaia katoa ai ki te karāhe.
He aha te wehi o te matua muka i te wai?
E whakaponohia whānuitia ana kāore te matua muka e pāngia e te wai nā te mea he tino ātete wai te karāhe. Heoi, he tino kino te wai ki ngā taura whatu. Mēnā ka uru te wai ki roto i te taura whatu, ka kino te muka i a ia e tio ana, e whānui ana hoki i roto i te wai matao. Nō reira, me pania ngā taura whatu ki te hiri hei ārai i te makuku kei uru.
E whakaatu ana ngā whakamātautau ka nui ake te ngaronga o te muka whatu mēnā ka roa te urunga o te makuku ki roto i te taura whatu, inā koa i te roanga ngaru o te 1.55 pm.
Ko te take e wehi ai te muka whatu i te wai, he mea tito te muka whatu i ngā tetrahedra karāhe silicon-hāora (SiO4) e honoa ana tetahi ki tetahi, e whakaaturia ana i te Pikitia 1. I roto i te whatunga Si-O-Si, kei te āhua o ngā piriti hāora ngā ngota hāora.
Heoi, i roto i te taiao wai, i muri i te mimiti o te mata karāhe i te mamaoa wai, ka puta he tauhohenga wai puhoi, ka motu te here silicon-hāora i roto i te whatunga taketake —Si—O—Si—, ā, ka noho te piriti hāora hei hāora kore-hononga e whakaaturia ana i te Pikitia 2, ka puta he kapiti i roto i te karāhe, ā, ka tipu haere tonu ngā kapiti.
Ahakoa he karāhe o te puna ika, he karāhe matapihi, he karāhe muka whatu rānei, ka taea katoa te pakaru e te wai. Ko te rerekētanga he tino matotoru te karāhe o te puna ika me te karāhe matapihi, arā, 3 mm, 5 mm, me te 10 mm te matotoru. Ahakoa he pakaru 0.05 mm, kāore e pā ki te kaha o te karāhe. Kāore he huringa e kitea ana.
He rerekē te muka whatu. Ko te whānui o te karāhe i roto i te muka whatu he 0.125 mm noa iho, he rite te matotoru ki te makawe tangata. Mena he kapiti o te 0.05 mm, ko te whānui o te muka whatu he 0.075 mm, ka tino ngāwari te pakaru o te muka. Hei tāpiri, ko te putanga mai o ngā pakiaka OH ka whakanui ake i te kaha mimiti mārama o te muka whatu. Koia te take kāore te karāhe o te puna ika me te karāhe matapihi e pāngia e te wai, ko te karāhe muka whatu he ngawari ki te pakaru e te wai.
I tēnei wā, ki te pakaru te taura whatu, kāore te hiri o te pouaka honohono e pai, ā, ka kitea te muka tahanga, ka poto te roa o te ora o te muka whatu, ā, ka whati noa te muka nā te wai.
Nō reira, ki te tāutahia te taura muka whatu ki roto i ngā waikeri, me mau tika ngā hononga, ā, ki te pakaru te taura muka whatu, me whakatika. Kaua e tukua te roto o te taura muka whatu kia pā ki te wai.
Wā tuku: Whiringa-ā-rangi 18-2022
