O-Cresolphthalein CAS 596-27-0

CAS:596-27-0

Qaacidda Molekuleeri:C22H18O4

Miisaanka Molekule:346.38

EINECS:209-881-8

Isku-mid ah:3',3''-dimethyl-phenolphthalei; cresolphthalein; Di-o-Cresolphthalide; o-Cresolphalein; o-cresolphtaleine; 3,3-bis(4-hydroxy-3-methylphenyl)-1(3h)-isobenzofuranon; 3,3-Bis(4-hydroxy-3-methylphenyl)-1-(3H)-iso-benzofuranone

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Calaamadaha Alaabta

Waa maxay O-Cresolphthalein CAS 596-27-0?

O-cresol phthalein waa budo crystalline ah oo cad ilaa huruud khafiif ah. Barta dhalaalka 216 ~ 217℃. Waxaa lagu milmaa aashitada aashitada aashitada, ether iyo glacial, oo xoogaa ku milma biyaha, aan ku milmin benzene, kuna milma alkali khafiif ah. Waxaa loo isticmaalaa tilmaame saldhig aashito ah oo ku jira kiimikada falanqaynta. Waxay leedahay qaab-dhismeed kiimiko oo la mid ah iyo sifooyin jireed iyo kiimiko oo la mid ah phenolphthalein, kala duwanaanshaha midab-beddelkeedana waa 8.2 (midab la'aan) -9.8 (casaan) (kala duwanaanshaha midab-beddelashada Phenolphthalein waa 8.2-10). Qaab-dhismeedkeeda aashitada waa qaab laktone oo aan midab lahayn, qaab-dhismeedkeeda saldhigeeduna waa qaab quinone ah wuxuuna u muuqdaa mid casaan ah.

Faahfaahinta

Shay	Faahfaahinta
Barta dhalaalaysa	223-225 °C
Barta karkarinta	401.12°C (qiyaasta qallafsan)
Cufnaanta	1.1425 (qiyaasta qiyaasta ah)
Tusmada Refractive	1.4400 (qiyaas)
pKa	9.40 (25℃)

Codsiga

O-Cresolphthalein waxaa loo isticmaalaa tilmaame saldhig aashito leh oo leh kala duwanaansho midab oo u dhexeeya pH8.2 (midab la'aan) ilaa 9.8 (casaan).