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O-Cresolphthalein CAS 596-27-0


  • CAS:596-27-0
  • Fa'asologa Molekiula:C22H18O4
  • Mamafa Molekiula:346.38
  • EINECS:209-881-8
  • Upu tutusa:3',3''-dimethyl-phenolphthalei; cresolphthalein; Di-o-Cresolphthalide; o-Cresolphalein; o-cresolphtaleine; 3,3-bis(4-hydroxy-3-methylphenyl)-1(3h)-isobenzofuranone; 3,3-Bis(4-hydroxy-3-methylphenyl)-1-(3H)-iso-benzofuranone
  • Fa'amatalaga o le oloa

    La'uina mai

    Fa'ailoga o Oloa

    O le ā le O-Cresolphthalein CAS 596-27-0?

    O le O-cresol phthalein o se pauta tioata paʻepaʻe i le samasama vaivai. O le tulaga e liu ai 216 ~ 217℃. E mafai ona solo i le ava malosi, ether ma le glacial acetic acid, e fai si solo i le vai, e le solo i le benzene, e solo i le alkali vaivai. E faʻaaogaina o se faʻailoga o le acid-base i le kemisi suʻesuʻe. E tutusa lona fausaga faʻakemikolo ma meatotino faʻaletino ma faʻakemikolo ma le phenolphthalein, ma o lona lanu e suia e 8.2 (leai se lanu) -9.8 (mumu) (o le Phenolphthalein lanu e suia e 8.2-10). O lona fausaga acid e leai se lanu e pei o le lactone, ma o lona fausaga faʻavae e pei o le quinone ma e foliga mumu.

    Fa'amatalaga

    Mea Fa'amatalaga
    Tulaga e liusuavai ai 223-225 °C
    Pula le tulaga 401.12°C (fuafuaga fa'ata'atia)
    Mafiafia 1.1425 (fuafuaga fa'atatau)
    Fa'asinomaga o le fa'ata'ita'iga 1.4400 (fuafuaga)
    pKa 9.40 (i le 25℃)

    Talosaga

    E fa'aaogaina le O-Cresolphthalein o se fa'ailoga o le acid-base ma se vaega o le suia o le lanu e amata mai le pH 8.2 (leai se lanu) i le 9.8 (mumu).

    Afifi

    25kg/talipalau po'o e tusa ai ma mana'oga o tagata fa'atau.

    O-Cresolphthalein-afifiina

    O-Cresolphthalein CAS 596-27-0

    Afifi-O-Cresolphthalein

    O-Cresolphthalein CAS 596-27-0


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