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 awhe o te tae o te tae ko te 8.2(kore tae) -9.8(whero)(Ko te awhe whakahekenga tae Phenolphthalein he 8.2-10).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 ℃)