EDTA 2NA CAS 6381-92-6 Disodium edetate dihydrate

1. Te rāngai ahumahi (he nui te ōwehenga)

Kaihoko maimoatanga wai: Ko te tote disodium dihydrate Edta tētahi o ngā whakamahinga matua. Ka whakamahia te EDTA-2na i roto i te wai rere ā-umanga, te wai kohua, te wai puna kaukau, me ētahi atu. Mā te whakakotahi i te Ca²⁺ me te Mg²⁺ (ngā katote wai mārō) i roto i te wai, ka ārai i te hanganga o te unahi. I taua wā anō, ka whakakotahi i ngā katote konganuku pēnei i te Fe³⁺ me te Cu²⁺, ka ārai i a rātou ki te whakaoho i te waikura me te pirau o ngā mea rauropi i roto i te wai, me te whakaiti i te waikura o ngā paipa.

Te tukatuka konganuku: Ko te Edta-2na he mea whakaū mō ngā otinga whakakikorua hiko (te whakakōpiri i ngā katote konganuku kia ōrite te paninga), he mea horoi konganuku (te tango i ngā waikura me te unahi mai i ngā mata konganuku kia kore ai e pokanoa ngā katote konganuku ki ngā pānga horoi), me te mea āwhina tā me te tae kakahu (te whakakōpiri i ngā katote konganuku ki te wai kia kore ai e ōrite te tae o ngā kakahu me te hekenga o te pumau o te tae).

Hopi horoi/kaihoko horoi: ka tāpirihia te tote disodium dihydrate edta ki te paura horoi kakahu, te wai horoi rihi, me ngā kaihoko horoi ahumahi hei "whakangawari wai" - e whakakoi ana i ngā katote wai mārō i roto i te wai hei whakarei ake i te kaha horoi o ngā hopi horoi me te aukati i te hanganga o te "para hopi" (pērā i te hopi konupūmā kore e rewa i hangaia e te hopi me te Ca²⁺).

2. Mara Kai (Ngā Tāpiringa e Tutuki ana)

Ko te Edta disodium salt dihydrate, hei tāpiri kai (kua whakaaetia kia whakamahia i roto i te Hainamana GB 2760), he "whakaū, he ārai mate, he kaihoko whakarewa chelating":

Mō ngā inu (pērā i ngā inu warowaihā me ngā wai hua): Whakakīia ngā katote konganuku pēnei i te Fe³⁺ me te Cu²⁺ hei ārai i a rātou kei whakateretere i te waikura me te pirau o te huaora C, kia roa ake ai te ora o te rongoā.

Mō ngā kai kēne me ngā ranu: ka aukati te edta-2na i te whakarewanga o ngā iona Fe i roto i ngā ipu whakarewa (pērā i te pereti tine), ka ārai i te hurihanga o te tae o te kai me te whakarerekē i tōna reka.

Mō ngā hinu me ngā kai parai: ka whakakōpirihia e te edta-2na ngā katote konganuku hei ārai i te waikura me te pirau o ngā hinu (ka puta he reka pirau).

Kia mōhio: Me tino whakahaere te horopeta o te tote disodium EDTA kai-kai (te nuinga o te wā ≤0.05-0.2g/kg, e rerekē ana i runga i te kāwai kai), ā, kua whakamanahia tōna haumaru e te Codex Alimentarius Commission (CAC).

3. Te mara hauora

Ngā mea tāpiri rongoā: Ko te Edta-2na he "whakaū" mō ngā werohanga me ngā wai ā-waha - e whakapūmau ana i ngā iti o ngā katote konganuku i roto i te rongoā wai (pērā i ngā katote Fe me Cu i whakaurua mai i te wā o te tukanga whakaputa), e ārai ana i ngā katote konganuku kei pakaru te rongoā (pērā i ngā paturopi me ngā rongoā huaora), ā, e whakarite ana i te whai huatanga me te haumaru o te rongoā.

Kaiwhakakore i ngā konganuku taumaha: Ka whakamahia te EDTA-2NA hei rongoā i te paihana konganuku taumaha (pēnei i te paihana mata me te paihana mercury) - mā te werohanga ā-uaua o te disodium EDTA, ka hangaia he matūriki wairewa-wai i roto i ngā katote konganuku paitini pēnei i te Pb²⁺ me te Hg²⁺ i roto i tōna chelate, ā, ka puta mā te mimi.

Niho/Whakapaipai: He wai whakamakuku awa pakiaka e whakamahia ana i roto i te mahi niho (te whakakorikori i te Ca²⁺ i roto i te dentin, te whakangawari i te dentin, me te whakahaere i te horoi); Hei "whakaū i te katote konganuku" i roto i ngā whakapaipai, ka ārai i ngā katote konganuku kei puta te waikura me te tae ke o ngā hua tiaki kiri.

4. Ētahi atu mara

Ahuwhenua: Ko te Edta disodium salt dihydrate, hei tāpiri mō ngā maniua huānga iti - ka whakakōkī i ngā huānga iti nui pērā i te Fe, Zn, me te Mn mō ngā tipu, ka whakanui ake i tō rātou wairewatanga ki te oneone, ā, ka āwhina i te mimiti o ngā tipu (ka karo i te piri o te oneone).