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

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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 ne-glacial acetic acid, incibilika kancane emanzini, ayincibiliki ku-benzene, i-soluble ku-alkali exubile.Isetshenziswa njengenkomba ye-acid-base kukhemistri yokuhlaziya.Inesakhiwo samakhemikhali esifanayo kanye nezakhiwo zomzimba nezamakhemikhali ku-phenolphthalein, futhi ububanzi bayo bokuguquguquka kombala buyi-8.2(colorless) -9.8(red)(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℃)