Thymolphthalein CAS 125-20-2

CAS:125-20-2

Fomula ya maselo:C28H30O4

Kulemera kwa maselo:430.54

Nambala ya EINECS:204-729-7

Dzina lofanana:3,3-bis(4-hydroxy-2-methyl-5-(1-methylethyl)phenyl)-1(3H)-Isobenzofuranone; 3,3-bis[4-hydroxy-2-methyl-5-(1-methylethyl)phenyl]-1(3h)-isobenzofuranon; Thymolphthalein,foranalysisACS;Thymolphthalein,indicator,pur;THYMOLPHTHALEINREANT(ACS);THYMOLPHTHALEINSOLUTION

Siyani Uthenga Wanu

Tsatanetsatane wa Zamalonda

Tsitsani

Ma tag a Zamalonda

Kodi Thymolphthalein CAS 125-20-2 ndi chiyani?

Dzina la sayansi la Thymolphthalein ndi "3,3-bis(4-hydroxy-5-isopropyl-2-methylphenyl)-phthalide", yomwe ndi reagent yachilengedwe. Fomula ya mankhwala ndi C28H30O4, ndipo kulemera kwa molekyulu ndi 430.54. Ndi ufa woyera wa kristalo. Umasungunuka mosavuta mu ether, acetone, sulfuric acid ndi alkaline solutions, ndipo susungunuka m'madzi. Nthawi zambiri umagwiritsidwa ntchito ngati chizindikiro cha acid-base, ndipo pH yake yosintha mtundu ndi 9.4-10.6, ndipo mtundu umasintha kuchoka pa wopanda mtundu kupita ku buluu. Ikagwiritsidwa ntchito, nthawi zambiri imakonzedwa kukhala yankho la ethanol la 0.1% 90%. Nthawi zambiri imakonzedwa ndi zizindikiro zina kuti ipange chizindikiro chophatikizana chofatsa kuti mtundu wake wosintha mtundu ukhale wocheperako komanso kuti kuwonera kumveke bwino.

Kufotokozera

CHINTHU	MUYENERERO	ZOTSATIRA
Kudziwika	Ufa woyera mpaka woyera pang'ono	Kutsatira malamulo
¹H-NMR	Sipekitiramu yofanana ndi yofotokozera	Pasipoti
Kuyera kwa HPLC	≥98%	99.6%
Kutayika pakuuma	1% pamlingo	0.24%

Kugwiritsa ntchito

Thymolphthalein nthawi zambiri imagwiritsidwa ntchito ngati chizindikiro cha acid-base, yokhala ndi pH ya kusintha kwa mtundu wa 9.4 mpaka 10.6, komanso kusintha kwa mtundu kuchokera ku wopanda mtundu kupita ku buluu. Ikagwiritsidwa ntchito, nthawi zambiri imakonzedwa ngati yankho la ethanol la 0.1% 90%, ndipo nthawi zambiri imasakanizidwa ndi zizindikiro zina kuti ipange chizindikiro chosakanikirana kuti mtundu wake ukhale wocheperako komanso womveka bwino kuti uwonekere. Mwachitsanzo, chizindikiro chomwe chimapangidwa posakaniza yankho la ethanol la 0.1% la reagent iyi ndi yankho la ethanol la 0.1% la phenolphthalein sichikhala ndi mtundu mu yankho la acidic, chofiirira mu yankho la alkaline, ndipo chimakwera pa pH 9.9 (malo osinthira mtundu), zomwe ndizosavuta kuziwona.