O-Cresolphthalein CAS 596-27-0

CAS:596-27-0

Tātai rāpoi:C22H18O4

Taumaha rāpoi:346.38

EINECS:209-881-8

kupu taurite: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

Waiho To Karere

Taipitopito Hua

Tikiake

Tohu Hua

He aha te O-Cresolphthalein CAS 596-27-0?

Ko te O-cresol phthalein he paura tioata ma ki te kowhai marama. Ira whakarewa 216 ~ 217℃. Wairewa i roto i te waipiro, etere me te hukapapa waikawa ahetiki, paku wairewa i roto i te wai, tarewa ki te benzene, wairewa i roto i te kawakore waimeha. Ka whakamahia hei tohu waikawa-papa i roto i te matū tātari. He rite te hanganga matū me nga ahuatanga o te tinana me te matū ki te phenolphthalein, a, ko te 8.2 (kore tae) -9.8 (whero) (he 8.2-10) te awhe whakaheke tae o te Phenolphthalein. Ko tona hanganga waikawa he ahua lactone kore tae, ko tona turanga he ahua quinone me te ahua whero.

Whakatakotoranga

Tūemi	Whakatakotoranga
Te rewa	223-225 °C
Kohuatanga	401.12°C (whakatau tata)
Kiato	1.1425 (whakatau tata)
Taupū Refactive	1.4400 (whakatau tata)
pKa	9.40(i te 25 ℃)