O-Cresolphthalein CAS 596-27-0

CAS:596-27-0

Fọọmu Molecular:C22H18O4

Ìwọ̀n Molikula:346.38

EINECS:209-881-8

Awọn itumọ ọrọ sisọ:3',3'-dimethyl-phenolphthalei;crsolphthalein;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

Fi ifiranṣẹ rẹ silẹ

Alaye ọja

Gba lati ayelujara

ọja Tags

Kini O-Cresolphthalein CAS 596-27-0?

O-cresol phthalein jẹ funfun si ina ofeefee okuta lulú.Ojutu yo 216 ~ 217 ℃.Tiotuka ninu oti, ether ati glacial acetic acid, die-die tiotuka ninu omi, insoluble ni benzene, tiotuka ni dilute alkali.Ti a lo bi atọka-ipilẹ acid ni kemistri atupale.O ni eto kemikali ti o jọra ati awọn ohun-ini ti ara ati kemikali si phenolphthalein, ati iwọn awọ-awọ rẹ jẹ 8.2 (laisi awọ) -9.8 (pupa) (Phenolphthalein awọ discoloration ibiti o jẹ 8.2-10).Eto acid rẹ jẹ fọọmu lactone ti ko ni awọ, ati ipilẹ ipilẹ rẹ jẹ fọọmu quinone ati pe o han pupa.

Sipesifikesonu

Nkan	Sipesifikesonu
Ojuami yo	223-225 °C
Oju omi farabale	401.12°C (iṣiro ti o ni inira)
iwuwo	1.1425 (iṣiro ti o ni inira)
Atọka itọka	1.4400 (iṣiro)
pKa	9.40 (ni 25℃)