O-Cresolphthalein CAS 596-27-0

I-CAS:596-27-0

I-Molecular Formula:I-C22H18O4

Isisindo se-Molecular:346.38

I-EINECS:209-881-8

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

Shiya Umlayezo Wakho

Imininingwane Yomkhiqizo

Landa

Omaka bomkhiqizo

Iyini i-O-Cresolphthalein CAS 596-27-0?

I-O-cresol phthalein iyimpushana ecwebezelayo emhlophe kuya kokuphuzi. Iphoyinti lokuncibilika 216 ~ 217℃. Incibilika otshwaleni, i-ether kanye ne-glacial acetic acid, incibilika kancane emanzini, ayincibiliki ku-benzene, i-soluble ku-alkali encibilikayo. Isetshenziswa njengenkomba ye-acid-base kukhemistri yokuhlaziya. Inesakhiwo samakhemikhali esifanayo kanye nezakhiwo zomzimba namakhemikhali ku-phenolphthalein, futhi ububanzi bayo bokuguquguquka kombala ngu-8.2(ongenambala) -9.8(obomvu)(i-Phenolphthalein color discoloration range ingu-8.2-10). Isakhiwo sayo se-asidi siyifomu ye-lactone engenambala, futhi isakhiwo sayo esiyisisekelo siyi-quinone futhi sibonakala sibomvu.

Ukucaciswa

Into	Ukucaciswa
Iphoyinti lokuncibilika	223-225 °C
Iphuzu elibilayo	401.12°C (isilinganiso esinzima)
Ukuminyana	1.1425 (isilinganiso esinzima)
Inkomba ye-refractive	1.4400 (isilinganiso)
pKa	9.40(ku-25℃)