Kaihanga Utu Pai Triphenylmethane toru isocyanate (whakaotinga ethyl acetate) CAS: 141-78-6 Waitohu: Desmodur_RE

1. Ka whakamahia te Ethyl Acetate hei whakarewa mō ngā wanihi, ngā paninga, me te nitrocellulose; hei kakara hua hangai; hei horoi i ngā kakahu; me te hanga i te hiraka hangai me te hiako, ngā hinu kakara, me ngā kiriata whakaahua me ngā pereti (Merck 1996). Ko te Ethyl Acetate te tikanga ka whakamahia hei whakarewa i roto i ngā tauhohenga rauropi. Ngā poke taiao; Ngā poke kai.

2. Ko te ethyl acetate te mea matua e whakamahia ana hei whakarewa me te wai whakakī, he mea pai mōna nā te mea he iti te utu, he iti te paitini, he kakara reka hoki. Hei tauira, he mea noa hei horoi i ngā papa hiko me ētahi tango peita whao (e whakamahia ana hoki te acetone me te acetonitrile). Ka tangohia te kawheine i roto i ngā pīni kawhe me ngā rau tī ki tēnei whakarewa. Ka whakamahia hoki i roto i ngā peita hei whakaoho, hei whakapakeke rānei. Kei roto te ethyl acetate i roto i ngā mea reka, i ngā hinu kakara, me ngā hua. I roto i ngā hinu kakara, ka tere te mimiti, ka waiho ko te kakara o te hinu kakara anake ki te kiri.
3 – 1 - Ngā whakamahinga taiwhanga
I roto i te taiwhanga, ko ngā ranunga kei roto ko te ethyl acetate e whakamahia whānuitia ana i roto i te chromatography pou me ngā tangohanga. Kāore i te maha ngā wā ka tīpakohia te ethyl acetate hei whakarewa tauhohenga nā te mea he ngāwari ki te hydrolysis me te trans esterification.
3 – 2 - Te puta i roto i ngā waina
Ko te ethyl acetate te ester tino kitea i roto i te waina, he hua nō te waikawa waro tino kitea - te waikawa acetic, me te waipiro ethyl i puta i te wā whakapūpū. Ko te kakara o te ethyl acetate te mea tino kitea i roto i ngā waina hou, ā, ka whai wāhi ki te tirohanga whānui o te "hua" i roto i te waina.
3 – 3 - Kaihoko whakamate pepeke
I roto i te mara o te mātai pepeke, he rongoā whakapūha te ethyl acetate hei whakamahi mā te kohikohi me te ako pepeke. I roto i tētahi ipu whakamate kua whakakiia ki te ethyl acetate, ka tere te patu a ngā kohu i te pepeke kua kohia (te nuinga he pakeke) me te kore e whakangaro. Nā te mea kāore e hihiko, ka noho ngohengohe te pepeke mā te ethyl acetate kia pai ai te whakairinga mō te kohikohinga.

3. Āwhina rongoā (reka); wai hua horihori; whakarewa mō te nitrocellulose, ngā wanihi, ngā wanihi, me ngā rongoā rererangi; hanga paura kore paowa, hiako horihori, kiriata me ngā pereti whakaahua, hiraka horihori, hinu kakara; kakahu horoi, me ētahi atu.