Thymolphthalein CAS 125-20-2

CAS:125-20-2

Tsarin kwayoyin halitta:C28H30O4

Nauyin kwayoyin halitta:430.54

Lambar EINECS:204-729-7

Ma'anar kamanci: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,alama,tsarkake;THYMOLPHTHALEINREAGENT(ACS);THYMOLPHTHALEINSOLUTION

A bar saƙonka

Cikakken Bayani game da Samfurin

Saukewa

Alamun Samfura

Menene Thymolphthalein CAS 125-20-2?

Sunan kimiyya na Thymolphthalein shine "3,3-bis(4-hydroxy-5-isopropyl-2-methylphenyl)-phthalide", wanda shine reagent na halitta. Tsarin sinadarai shine C28H30O4, kuma nauyin kwayoyin shine 430.54. Farin foda ne mai lu'ulu'u. Yana narkewa cikin sauƙi a cikin ether, acetone, sulfuric acid da alkaline, kuma baya narkewa a cikin ruwa. Sau da yawa ana amfani dashi azaman alamar acid-base, kuma kewayon canjin launi na pH shine 9.4-10.6, kuma launi yana canzawa daga mara launi zuwa shuɗi. Idan aka yi amfani da shi, sau da yawa ana shirya shi zuwa maganin ethanol na 0.1% 90%. Haka kuma sau da yawa ana shirya shi tare da wasu alamomi don samar da alamar haɗin gwiwa mai laushi don sa kewayon canjin launi ya zama kunkuntar kuma lura ya fi bayyana.

Ƙayyadewa

KAYA	MAS'ALA	SAKAMAKO
Ganowa	Foda fari zuwa farin-fari	Ya cika
¹H-NMR	Bakan iri ɗaya tare da tunani	Wucewa
Tsarkakakken HPLC	≥98%	99.6%
Asara idan aka busar da ita	1%mafi girma	0.24%

Aikace-aikace

Sau da yawa ana amfani da Thymolphthalein a matsayin alamar acid-base, tare da kewayon pH na canjin launi daga 9.4 zuwa 10.6, da kuma canjin launi daga mara launi zuwa shuɗi. Idan aka yi amfani da shi, sau da yawa ana shirya shi azaman maganin ethanol na 0.1% 90%, kuma sau da yawa ana haɗa shi da wasu alamomi don samar da alamar gauraya don sa kewayon canjin launi ya zama mafi kunkuntar da kuma bayyana a gani. Misali, alamar da aka yi ta hanyar haɗa maganin ethanol na 0.1% na wannan reagent tare da maganin phenolphthalein na 0.1% ba shi da launi a cikin maganin acid, shunayya a cikin maganin alkaline, kuma fure a pH 9.9 (ma'aunin canza launi), wanda yake da sauƙin gani.