Thymolphthalein CAS 125-20-2

I-CAS:125-20-2

Ifomula yemolekyuli:C28H30O4

Ubunzima bemolekyuli:430.54

Inombolo ye-EINECS:204-729-7

Isithethantonye: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,foraanalysisACS;Thymolphthalein,isalathi,msulwa; I-THYMOLPHTHALEINREAGENT(ACS); I-THYMOLPHTHALEINSOLUTION

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Yintoni i-Thymolphthalein CAS 125-20-2?

Igama lesayensi le-Thymolphthalein ngu-"3,3-bis(4-hydroxy-5-isopropyl-2-methylphenyl)-phthalide", eyinto ephilayo. Ifomula yeekhemikhali yi-C28H30O4, kwaye ubunzima be-molecular yi-430.54. Ingumgubo omhlophe wekristale. Inyibilika ngokulula kwi-ether, i-acetone, i-asidi ye-sulfuric kunye ne-alkaline, kwaye ayinyibiliki emanzini. Ihlala isetyenziswa njengesalathisi se-acid-base, kwaye uluhlu lwayo lokutshintsha umbala we-pH luyi-9.4-10.6, kwaye umbala utshintsha ukusuka kwi-colorless ukuya eluhlaza okwesibhakabhaka. Xa isetyenziswa, isoloko ilungiswa ibe yi-0.1% 90% yesisombululo se-ethanol. Ikwahlala ilungiswa kunye nezinye izikhombisi ukwenza isalathisi esithambileyo esidityanisiweyo ukwenza uluhlu lwalo lokutshintsha umbala lube mxinwa kwaye uqwalaselo lucace ngakumbi.

Inkcazo

INTO	UMGANGATHO	IZIPHUMO
Ukuchongwa	Umgubo omhlophe ukuya kumhlophe	Iyahambelana
¹H-NMR	I-spectrum efanayo kunye nereferensi	Dlula
HPLC ubunyulu	≥98%	99.6%
Ilahleko ekomisweni	1% ubuninzi	0.24%

Isicelo

I-Thymolphthalein idla ngokusetyenziswa njengesalathisi se-acid-base, kunye ne-pH yokutshintsha kombala we-9.4 ukuya kwi-10.6, kunye nokutshintsha kombala ukusuka kwi-colorless ukuya eluhlaza okwesibhakabhaka. Xa isetyenziswa, isoloko ilungiswa njengesisombululo se-ethanol ye-0.1% 90%, kwaye isoloko ixutywa nezinye izikhombisi ukwenza isalathisi esixubileyo ukwenza uluhlu lwalo lokutshintsha umbala lube luncinci kwaye lucace ukuba lugcinwe. Ngokomzekelo, isalathisi esenziwe ngokuxuba isisombululo se-ethanol ye-0.1% ye-reagent kunye ne-0.1% yesisombululo se-ethanol ye-phenolphthalein ayinambala kwisisombululo esine-acidic, emfusa kwisisombululo se-alkaline, kwaye yavuka kwi-pH 9.9 (indawo yokutshintsha umbala), okuyiyo. kulula kakhulu ukujonga.