Phenolphthalein: Elf anwansi n'ụwa kemịkalụ

N'ụwa dị egwu nke kemistri, phenolphthalein dị ka mmụọ dị omimi na nke na-adọrọ adọrọ, ya na ịma mma pụrụ iche ya na ọtụtụ ojiji ya, na-aghọ ọnụnọ dị mkpa n'ọtụtụ ngalaba.

Phenolphthalein, ntụ ntụ kristal dị mma nke nwere ọdịdị ọcha ma ọ bụ odo odo ntakịrị, nwere ike iyi ihe nkịtị, mana o nwere ihe ndị dị ka kemịkalụ anwansi. Ọ na-agbaze ntakịrị na mmiri oyi mana ọ nwere ike ịgbatị ọdịdị ya n'enweghị nsogbu na ihe mgbaze organic dịka ethanol na ether. Ihe a kacha mara amara bụ arụmọrụ ya dị egwu dị ka ihe ngosi acid-base. Mgbe uru pH nke ngwọta ahụ dị n'okpuru 8.2, phenolphthalein ka na-adịghị ahụ anya n'olu dara ụda, ngwọta ahụ na-adịkwa ka enweghị agba. Agbanyeghị, ozugbo uru pH ahụ rutere na oke 8.2 ruo 10.0, phenolphthalein "na-agbanwe" ozugbo, na-eme ka ngwọta ahụ too na agba pink mara mma, dị ka a ga-asị na ọ na-agba egwu nke ọma n'ọkwa kemịkalụ, na-ebuga ozi dị mkpa nke acidity ma ọ bụ alkalinity nke ngwọta ahụ nye ndị mmadụ site na mgbanwe agba. Na nnwale titration acid-base, ọ bụ "onye ọkaikpe" ka mma. Chee echiche na mgbe ịchọrọ ịtụ mkpokọta nke acid ma ọ bụ ntọala a na-amaghị, ị na-agbakwunye ntakịrị ntapụ nke phenolphthalein. Ka titration na-aga n'ihu, mgbanwe mberede na agba ngwọta na-egosi kpọmkwem njedebe titration, na-enyere gị aka inweta nsonaazụ nnwale ziri ezi. Phenolphthalein nwere ọtụtụ ojiji dị iche iche. N'ụlọ ọrụ ọgwụ, e jiri ya mee ihe dị ka ọgwụgwọ dị irè maka afọ ntachi. Site n'ịkpalite akwara plexus n'ime mgbidi eriri afọ na ịkwalite peristalsis nke akwara dị nro nke eriri afọ, o nyeere ndị mmadụ aka idozi nsogbu eriri afọ. N'ụwa nke njikọ organic, phenolphthalein arụwo ọrụ dị mkpa, na-esonye na njikọta nke plastik, ọkachasị polymers diazazone polyaryletherketone dị elu. Eriri, mkpuchi na ihe mejupụtara nke e ji polymer ndị dị otú ahụ mee achọtala ojiji ha na mpaghara dị elu dị ka ngwa eletrọniki na ngwa eletriki, ngwa igwe, njem, ụgbọelu, injinịa ike atomic na ndị agha, n'ihi oke iguzogide okpomọkụ ha, iguzogide mmiri, iguzogide nchara kemịkal, iguzogide ịka nká okpomọkụ na ezigbo nhazi na nhazi.

Phenolphthalein agbakwunyekwala ọtụtụ ọṅụ ná ndụ anyị. N'ihe ngosi sayensị na-adọrọ mmasị, ihe anwansi nke "mmiri na-agbanwe agba" bụ phenolphthalein. N'ụfọdụ ihe egwuregwu anwansi, a na-eji ihe onwunwe nke phenolphthalein nke na ọ na-agbanwe agba mgbe e tinyere ya na asịd ma ọ bụ alkalis iji mepụta mmetụta anya dị egwu. Ọzọkwa, site na ọrụ dị mfe, anyị nwekwara ike ime akwụkwọ nnwale phenolphthalein n'onwe anyị. Site na iji ya chọpụta ihe alkaline, ọ na-acha ọbara ọbara mgbe e tinyere ya na alkali. Ọ bụrụgodị na enwere obere ammonia n'ikuku, akwụkwọ nnwale mmiri ahụ ka nwere ike igosi agba ọbara ọbara dị nro.

Mgbe anyị na-eji phenolphthalein, anyị kwesịkwara ilekọta nchekwa anyị nke ọma. Jidesie ike na mkpokọta ahụ nke ọma. N'ozuzu, ihe ngwọta mmanya nke 0.1% bụ ihe kacha mma. Zere ka ọ ghara imetụ akpụkpọ ahụ aka nke ọma. Ọ bụrụ na ọ metụrụ aka na mberede, jide n'aka na ị ga-eji mmiri dị ọcha sachaa ya nke ọma ozugbo. Mgbe ị na-echekwa ya, debe ya n'ebe dị jụụ ma kpọọ nkụ, ebe anwụ na-acha kpọmkwem.

Phenolphthalein, ihe a na-akpọ anwansi n'ụwa kemịkalụ, na-arụ ọrụ dị ukwuu n'agbanyeghị obere nha ya. Ma ọ bụ iji kwado nnyocha sayensị ma ọ bụ iweta ahụmịhe dị egwu na ndụ, ọ na-aga n'ihu. Ka anyị nye "dike" a otuto maka onyinye n'ekwughị okwu. N'ụzọ nke inyocha ihe omimi ahụ.Banyere kemistri, ka anyị malite isiakwụkwọ ndị ọzọ mara mma yana phenolphthalein!