ʻO-Cresolphthalein CAS 596-27-0

CAS:596-27-0

Formula Molekala:C22H18O4

Kaumaha Molekala:346.38

Nā EINECS:209-881-8

Nā huaʻōlelo like: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

Waiho i kāu leka

Nā kikoʻī huahana

Hoʻoiho

Nā Lepili Huahana

He aha ka O-Cresolphthalein CAS 596-27-0?

He pauka crystalline keʻokeʻo a melemele māmā ka O-cresol phthalein. He kiko heheʻe 216 ~ 217 ℃. Hoʻoheheʻe ʻia i loko o ka waiʻona, ether a me ka waikawa acetic glacial, hoʻoheheʻe iki ʻia i ka wai, hoʻoheheʻe ʻole ʻia i ka benzene, hoʻoheheʻe ʻia i ka alkali dilute. Hoʻohana ʻia ma ke ʻano he hōʻailona acid-base i ka kemika analytical. Loaʻa iā ia ke ʻano kemika like a me nā waiwai kino a me ke kemika me ka phenolphthalein, a ʻo kona pae hoʻololi kala he 8.2 (kala ʻole) -9.8 (ʻulaʻula) (ʻO ka pae hoʻololi kala Phenolphthalein he 8.2-10). ʻO kona ʻano waikawa he ʻano lactone kala ʻole, a ʻo kona ʻano kumu he ʻano quinone a ʻike ʻia he ʻulaʻula.

Nā kikoʻī

Mea	Nā kikoʻī
Kiko heheʻe	223-225 °C
Kikowaena paila	401.12°C (manaʻo kikoʻī)
Ka nui o ka paʻa	1.1425 (kuhikuhi maʻamau)
ʻIkepili refractive	1.4400 (kuhikuhi)
pKa	9.40 (ma 25 ℃)