I-Thymolphthalein CAS 125-20-2

I-CAS:125-20-2

Ifomula ye-molecular:I-C28H30O4

Isisindo samangqamuzana:430.54

Inombolo ye-EINECS:204-729-7

Igama elifanayo:I-3,3-bis (4-hydroxy-2-methyl-5- (1-methylethyl) phenyl) -1 (3H) -Isobenzofuranone; I-3,3-bis [4-hydroxy-2-methyl-5- (1-methylethyl) phenyl] -1 (3h) -isobenzofuranon; Thymolphthalein,foranalysisACS;Thymolphthalein,inkomba,pure; I-THYMOLPHTHALEINREAGENT(ACS); I-THYMOLPHTHALEINSOLUTION

Shiya Umlayezo Wakho

Imininingwane Yomkhiqizo

Landa

Omaka bomkhiqizo

Iyini i-Thymolphthalein CAS 125-20-2?

Igama lesayensi le-Thymolphthalein ngu-"3,3-bis(4-hydroxy-5-isopropyl-2-methylphenyl)-phthalide", okuyi-organic reagent. Ifomula yamakhemikhali yi-C28H30O4, futhi isisindo samangqamuzana singu-430.54. Impushana emhlophe ecwebezelayo. Incibilika kalula ku-ether, i-acetone, i-sulfuric acid ne-alkaline solutions, futhi ayincibiliki emanzini. Ivamise ukusetshenziswa njengenkomba ye-acid-base, futhi ububanzi bayo bokushintsha umbala we-pH bungu-9.4-10.6, futhi umbala ushintsha usuka ongenambala ube luhlaza okwesibhakabhaka. Uma isetshenziswa, ivame ukulungiswa ibe yisisombululo se-ethanol esingu-0.1% 90%. Ibuye ijwayele ukulungiswa nezinye izinkomba ukwenza inkomba ehlangene emnene ukuze wenze uhla lwayo lokushintsha umbala lube luncane kanye nokubona kucace.

Ukucaciswa

ITEM	IZINGA	RESULT
Ukuhlonza	Impushana emhlophe ukuya kokumhlophe	Iyahambisana
¹H-NMR	I-spectrum efanayo nereferensi	Dlula
Ubumsulwa be-HPLC	≥98%	99.6%
Ukulahlekelwa ekomisweni	1%ubuningi	0.24%

Isicelo

I-Thymolphthalein ivamise ukusetshenziswa njengenkomba ye-acid-base, enobubanzi bokushintsha umbala we-pH obungu-9.4 ukuya ku-10.6, kanye nokushintsha kombala ukusuka kokungabi mbala ukuya kokuluhlaza okwesibhakabhaka. Uma isetshenziswa, ivame ukulungiswa njengesixazululo se-ethanol esingu-0.1% 90%, futhi ivamise ukuxutshwa nezinye izinkomba ukwenza inkomba exubile ukwenza uhla lwaso lokushintsha umbala lube luncane futhi lucace ukubhekwa. Isibonelo, inkomba eyenziwe ngokuxuba isixazululo se-ethanol esingu-0.1% salesi sikhumbuzi nesixazululo se-ethanol esingu-0.1% se-phenolphthalein asinambala esixazululo esine-asidi, sinsomi esixukwini se-alkali, futhi saphakama ku-pH 9.9 (iphuzu lokushintsha umbala), okuyiphuzu lokushintsha umbala. kulula kakhulu ukuyibona.