Ngā hauwaiwaro: Te Pūtake o te Matū Hou
Pendahuluan
Ko ngā hauwaiwaro he matū waro i hangaia mai i ngā ngota waro (C) me te hauwai (H). Hei wāhanga matua o ngā wahie pūmua me ngā hinu whakahinuhinu, he mea nui te mahi a ngā hauwaiwaro i roto i te ao hou. Ka whakamāramahia e tēnei tuhinga ngā āhuatanga maha o ngā hauwaiwaro, mai i tōna hanganga me ōna momo ki ōna tono ahumahi me ōna pānga ki te taiao.
Hanganga me ngā Momo o ngā Hauwaiwaro
Ka taea te whakarōpū i ngā hauwaiwaro ki ētahi wāhanga i runga i tō rātou hanganga matū:
1. Ngā Āraihana: E mōhiotia ana ko ngā parafini, he warowaihā kukū ngā āraihana, he kotahi noa te hononga i waenga i ngā ngota waro. Ko ētahi tauira ko te methane (CH₄), te ethane (C₂H₆), me te propane (C₃H₈).
2. Ngā Ākene: Kei roto i ēnei hauwaiwaro kore-mākū te iti rawa kotahi te hononga takirua i waenga i ngā ngota waro. Ko ngā tauira o ngā ākene ko te etilena (C₂H₄), te propylene (C₃H₆), me te butylene (C₄H₈).
3. Ngā ārikine: Kei roto i te iti rawa kotahi te hononga takitoru i waenga i ngā ngota waro, ko ngā ārikine pēnei i te ātiretine (C₂H₂) hei tauira.
4. Kakara: He mowhiti benzene kei roto i te hanganga o ngā hauwaiwaro kakara, aryl rānei, ā, he pumau motuhake tō rātou. Hei tauira: benzene (C₆H₆).
Ngā Āhuatanga Ā-tinana me te Matū o ngā Hauwaiwaro
Ko te roa o te mekameka waro me te momo here i waenga i ngā ngota waro te mea nui ki ngā āhuatanga o ngā warowaihā. Ko te nuinga o ngā warowaihā he kore-polar, arā, kāore e wairewa i roto i te wai engari ka wairewa i roto i ngā whakarewa waro. He koretake ngā ārani, engari he kaha ake te tauhohenga o ngā ārani me ngā ārani nā te mea he hononga takirua ō rātou.
Te Whakaputa me ngā Pūtake o te Hauwaiwaro
1. Taiao: Ko te nuinga o ngā warowaihā e whakamahia ana e tātou i ahu mai i ngā pūtake taiao pērā i te hinu, te hau maori, me te waro. He ranunga matatini te hinu o ngā momo warowaihā me whakamahine mā roto i ngā tukanga wehewehenga kia puta ai ngā hua whai hua pērā i te penehīni, te tīhiera, me te hinu kēhi.
2. Te Hanganga: Ka taea hoki te hanga i ngā hauwaiwaro i roto i te taiwhanga mā roto i ngā tauhohenga matū maha, hei tauira ko te tauhohenga Grignard me te tauhohenga Wittig.
Te Whakamahinga o ngā Hauwaiwaro i roto i te Ahumahi
He mea tino nui ngā hauwaiwaro i roto i ngā momo rāngai ōhanga:
1. Pūngao: Ko ngā ārani pērā i te methane ka whakamahia hei wahie matua mō te whakaputa hiko me te whakamahana i te wāhi.
2. Ngā Rauemi Matū: He mea nui ngā alkene me ngā mea kakara i roto i te umanga matū. Hei tauira, ka whakamahia te ethylene hei hanga polyethylene, tētahi o ngā kirihou tino noa o te ao.
3. Ngā hinu whakahinuhinu me ngā mea whakapaipai: Ko ngā hinu kohuke, he mea hanga te nuinga mai i ngā hauwaiwaro, e whakamahia ana i roto i ngā hinu whakahinuhinu mīhini me ngā hua whakapaipai.
4. Hauora me te Rongoā: Ka whakamahia ngā hauwaiwai phenolic (ngā hua o ngā hauwaiwai kakara) i roto i ngā whakatakotoranga rongoā me ngā whakatakotoranga paturopi.
Ngā Pānga Taiao o ngā Hauwaiwaro
Ahakoa he tino whai hua, he nui anō ngā pānga o te whakamahinga o ngā hauwaiwaro ki te taiao:
1. Te Parahanga o te Hau: Mā te tahunga o ngā hauwaiwai ka puta he hau kati kōtuhi pērā i te hauhā waro (CO₂) me ētahi atu parahanga e whai wāhi ana ki te huringa āhuarangi me te kounga o te hau kino.
2. Ngā Maringi Hinu: Ka pā kino pea ngā aituā pēnei i te maringi hinu ki ngā pūnaha rauropi moana, ka kino ai ngā mea ora o te moana, ka whakararuraru hoki i te mekameka kai.
3. Te Hanganga o te Auahi me te Kohu: Ka taea e ngā hauwaiwaro kore-mākū e tukuna ana ki te āhuarangi te tauhohe ki te hāora me ētahi atu hau hei hanga kohu, he mea kino ki te hauora o te tangata.
Ngā Huarahi Whakarerekē me te Anamata o ngā Hauwaiwaro
Hei whakaiti i ngā pānga kino, kei te haere tonu ngā rangahau hei whakawhanake i ngā huarahi kē atu e pai ake ana ki te taiao, pēnei i:
1. Ngā wahie koiora: He otinga pumau ake te huri i te koiora hei wahie i ngā warowaihā pūmua.
2. Pūngao Whakahou: Te whakamahi i te pūngao o te rā, te hau, me te hauwai hei utu mō ngā warowaihā hei whakaputa hiko.
3. Hangarau Rokiroki Waro: Te whakawhanake i te hangarau hei hopu me te penapena i te CO₂ i puta mai i te tahunga o ngā warowaihā.
Whakamutunga
He tino kanorau ngā matū warowaihā, ā, he mea nui tēnei i roto i te ao hou, mai i ngā pūtake pūngao ki ngā rauemi mata mō ngā ahumahi matū me te rongoā. Heoi anō, he maha ngā wero taiao e pā ana ki tēnei whakamahinga me aro atu. Mā te auahatanga hangarau me te neke ki ngā pūtake pūngao pumau ake, ka taea e tātou te whakaiti i ngā pānga kino o te whakamahinga warowaihā, me te whakarite kia taea e tātou te whakamahi i tēnei rauemi taiao me te kore e kino ki te ao e noho nei tātou. Ko ngā rangahau anō me ngā kaupapa here whai whakaaro te mea nui ki te whakatutuki i tēnei taurite.
