Hua

Taupānga: Kua whakamahia te karaka Methyl i roto i te taiwhanga me te hanga ahumahi me te ahuwhenua mo te whakahaere pH o nga tauhohenga matū me te tātari titration waikawa-papa o nga hua matū me nga takawaenga.I roto i te ahumahi tā me te tae, ko te pH e toe ana i runga i te papanga me ine ki te tohu me te horoi kia noho kore te papanga.Mena he kawatanga kei runga i nga kakahu huarākau Chemicalbook, ka pa ki tona tae me tona tere ina tae ka tae, ka taia ki nga waikano tauhohenga.Ko te kino o te tohu methyl karaka he uaua ake te tautuhi i te tae kowhai-whero, a kua whakakapia inaianei e te tini o nga tohu.Ko te karaka Methyl he waikano azo ka taea te whakamahi ki te ta me te tae kakano

Tohu Whakatairanga Acid-base "Ko te Karaka Methyl he tohu titration acid-base e whakamahia nuitia ana i roto i te matū tātari. Ko tona kukū o te 0.1% wairewa wai he pH o 3.1 (whero) ki te 4.4 (kowhai). He pai mo te waikawa kaha me te kaha. turanga, Titration i waenganui i nga turanga ngoikore Ka noho i roto i te ahua o te waikawa sulfonic konutai tote i roto i te wairewa kūpapa, kawakore ranei, ka huri ki te waikawa sulfonic i roto i te wairewa waikawa, kia hanga ai te roopu waikawa sulfonic waikawa me te roopu dimethylamino taketake i roto i te ngota. Ko te ahua tote o roto (hanganga paraquinone) o te waikawa p-dimethylaminophenylazobenzenesulfonic ka noho hei punaha whakakotahi kei roto he hanganga p-quinone, no reira ka rereke te tae, kaore e pai mo te titration o nga waikawa waikawa waro Ka whakamahia hoki mo te whakatau spectrophotometric o te maota. , bromine me nga katote bromide Ka whakamahia hoki mo te tae koiora, me etahi atu. Kua whakamahia te karaka methyl i roto i te taiwhanga me te hanga ahumahi me te ahuwhenua mo te whakahaere pH o nga tauhohenga matū me te waikawa mo nga hua matū me nga takawaenga Te tātari titration alkali.I roto i te ahumahi tā me te tae, me ine te toenga pH o te papanga ki te tohu me te horoi kia noho kore te papanga.Mena he kawatanga te papanga, ka pa ki tona tae me tona tae ina tae ka tae, ka taia ranei ki nga waikano tauhohenga.Te tere.Ko te kino o te tohu methyl karaka he uaua ake te tohu o te tae kowhai-whero, a kua whakakapia inaianei e te maha o nga tohu (tirohia te "phenolphthalein").Ko te karaka Methyl he waikano azo, ka taea te whakamahi mo te ta me te tae kakano.

Whakamahinga: Hei tohu waikawa-papa, pH3.1 (whero) -4.4 (kowhai), ka whakamahia hoki mo te tae koiora.

Whakamahinga: te tohu waikawa-papa, te rereketanga o te pH mai i te 3.1 (whero) ki te 4.4 (kowhai), te whakatau i te kawakoretanga o te nuinga o nga waikawa kohuke, nga turanga kaha me te wai;te whakatau o te tine (Sn2+ ka memeha methyl karaka ina whakamahana);te whakaheke kaha Te tohu whakaheke tae mo nga waikura (Ti3+, Cr2+) me nga waikura kaha (maota, bromine);te whakatau spectrophotometric o te chlorine, bromine me te bromide katote;ka taea te whakakotahi ki te konutai indigo disulfonate me te bromocresol kakariki hei hanga i tetahi tohu whakauru hei whakapoto i te whakakoitanga Domain me te whakarei ake i te koi o te huringa tae;tohu redox penei i te arsenic trivalent, antimony ranei mo te titration pāhare pāporo

Whakamahinga: Tohu Waikawa-papa, tohu achromatic o te kaihoko whakaheke kaha me te waikura kaha, tohu cytoplasmic, stain rereke histological, poke ngongo hae.Ka huri te uara pH i te awhe tae mai i te 3.1 (whero) ki te 4.4 (kowhai), ka whakatau i te kawakore o te nuinga o nga waikawa kohuke, nga kawakore kaha me te wai.Te whakatau o te tine (Sn2+ ka whakakorehia te methyl karaka ina wera).Ko te tohu whakaheke tae mo nga matū whakaheke kaha (Ti3+), Cr2+) me ngā āpiha hāora (chlorine, bromine).Te whakatau spectrophotometric o te chlorine, bromine me te bromide katote.Ka taea te whakakotahi ki te konutai indigo disulfonate me te bromocresol matomato hei hanga i tetahi tohu whakauru hei whakapoto i te awhe huringa tae me te whakapai ake i te koi o te huringa tae.Ko nga tohu redox penei i te arsenic trivalent, antimony ranei mo te titration pāhare pāporo.