Ke kuleana o nā mea chelating i nā huahana holoi
ʻO Chelate, ka chelate i hoʻokumu ʻia e nā mea chelating, mai ka huaʻōlelo Helene ʻo Chele, ʻo ia hoʻi ka maiʻuu pāpaʻi. Ua like nā Chelates me nā maiʻuu pāpaʻi e paʻa ana i nā ion metala, he paʻa loa a maʻalahi hoʻi e wehe a hoʻohana paha i kēia mau ion metala. I ka makahiki 1930, ua hana ʻia ka chelate mua ma Kelemania - EDTA (ethylenediamine tetraacetic acid) chelate no ka mālama ʻana i nā maʻi make metala kaumaha, a laila ua hoʻomohala ʻia ka chelate a hoʻopili ʻia i ka holoi kemika o kēlā me kēia lā, ka meaʻai, ka ʻoihana a me nā noi ʻē aʻe.
I kēia manawa, ʻo nā mea hana nui o nā mea chelating ma ka honua e komo pū ana me BASF, Norion, Dow, Dongxiao Biological, Shijiazhuang Jack a pēlā aku.
ʻO ka ʻāina ʻo Asia-Pākīpika ka mākeke nui loa no nā chelating agents, me ka ʻoi aku ma mua o 50% o ka mahele a me ka nui o ka mākeke i manaʻo ʻia ma mua o US $ 1 biliona, me nā noi nui i ka ʻoihana detergent, ka mālama wai, ka mālama pilikino, ka pepa, ka meaʻai a me ka mea inu.
(ʻAno molekole o ka mea chelating EDTA)
Hoʻokele nā mea hoʻohuihui i nā ion metala ma o ka hoʻohuihui ʻana i kā lākou multi-ligands me nā hui ion metala e hana i nā chelates.
Mai kēia ʻano hana, hiki ke hoʻomaopopo ʻia he nui nā molekala me nā multi-ligands i loaʻa i kēlā ʻano hiki ke chelation.
ʻO kekahi o nā mea maʻamau loa ʻo ia ka EDTA ma luna, hiki ke hāʻawi i 2 mau ʻātoma nitrogen a me 4 mau ʻātoma oxygen carboxyl e hana pū me ka metala, a hiki ke hoʻohana i 1 mole e kāʻei paʻa i ka ion calcium e pono ai ka hoʻonohonoho ʻana o 6, e hana ana i kahi huahana paʻa loa me ka hiki ke chelation maikaʻi loa. ʻO nā chelators ʻē aʻe i hoʻohana pinepine ʻia e komo pū me ka sodium phytate e like me ka sodium gluconate, sodium glutamate diacetate tetrasodium (GLDA), nā waikawa amino sodium e like me ka methylglycine diacetate trisodium (MGDA), a me nā polyphosphates a me nā polyamines.
E like me kā kākou e ʻike nei, inā paha i loko o ka wai paipa a i ʻole i loko o nā kino wai kūlohelohe, aia ka calcium, magnesium, hao plasma, ʻo kēia mau ion metala i ka hoʻonui ʻana i ka wā lōʻihi, e lawe mai i nā hopena ma ko kākou ola o kēlā me kēia lā:
1. ʻAʻole i hoʻomaʻemaʻe pono ʻia ka lole, e hoʻoulu ai i ka waiho ʻana o ka unahi, ka paʻakikī a me ka ʻeleʻele.
2. ʻAʻohe mea hoʻomaʻemaʻe kūpono ma ka ʻili paʻakikī, a me nā waihona unahi
3. Hoʻemi i nā waihona i loko o nā mea ʻaina a me nā mea aniani
ʻO ka paʻakikī o ka wai e pili ana i ka nui o nā iona calcium a me magnesium i loko o ka wai, a e hōʻemi ka wai paʻakikī i ka hopena holoi. I loko o nā huahana detergent, hiki i ka mea chelating ke hana me ka calcium, magnesium a me nā iona metala ʻē aʻe i loko o ka wai, i mea e palupalu ai ka maikaʻi o ka wai, pale i ka calcium a me ka plasma magnesium mai ka hana ʻana me ka mea hana i loko o ka detergent, a pale i ka hoʻopilikia ʻana i ka hopena holoi, a laila e hoʻomaikaʻi ai i ka pono o ka huahana holoi.
Eia kekahi, hiki i nā mea chelating ke hoʻolilo i ka haku mele o ka detergent i mea paʻa a emi ʻole ka maʻalahi i ka palaho ke hoʻomehana ʻia a mālama ʻia paha no ka manawa lōʻihi.
ʻO ka hoʻohui ʻana o ka mea chelating i ka mea holoi lole hiki ke hoʻonui i kona mana hoʻomaʻemaʻe, ʻoi aku hoʻi ma nā wahi i hoʻopilikia nui ʻia ai ka hopena holoi e ka paʻakikī, e like me ke kūkulu ʻākau, ke komohana hema a me nā wahi ʻē aʻe me ka paʻakikī wai kiʻekiʻe, hiki i ka mea chelating ke pale aku i nā ʻōpala wai a me nā ʻōpala mai ka noho ʻana ma luna o ka lole, i ʻoi aku ka permeable o ka mea holoi lole a ʻoi aku ka maʻalahi o ka hoʻopili ʻana i ka ʻili o ke kapa, e hoʻomaikaʻi ana i ka hopena holoi i ka manawa like. Hoʻomaikaʻi i ke keʻokeʻo a me ka palupalu, ʻaʻole hina a maloʻo ka hana intuitive.
I ka hoʻomaʻemaʻe ʻana i ka ʻili paʻakikī a me ka hoʻomaʻemaʻe ʻana i nā kīʻaha, hiki i ka mea chelating i loko o ka detergent ke hoʻomaikaʻi i ka hiki ke hoʻoheheʻe a me ka hoʻopuehu ʻana o ka detergent, i maʻalahi ai ka wehe ʻana i ka ʻōpala a me ke unahi, a ʻo ka hana intuitive ʻaʻole hiki ke noho ka unahi, ʻoi aku ka moakaka o ka ʻili, a ʻaʻole kau ke aniani i ka ʻili wai. Hiki i nā mea chelating ke hui pū me ka oxygen i ka lewa e hana i nā paʻakikī paʻa e kāohi ai i ka oxidation o nā ʻili metala.
Eia kekahi, hoʻohana ʻia ka hopena chelating o nā mea chelating ma nā ion hao i nā mea hoʻomaʻemaʻe paipu no ka wehe ʻana i ka popo.