O-Cresolphthalein CAS 596-27-0
ʻO ka O-cresol phthalein he keʻokeʻo a ʻulaʻula melemele crystalline pauka. Ka helu hehee 216 ~ 217 ℃. Hiki ke hoʻoheheʻe ʻia i ka waiʻona, etera a me ka ʻakika acetic glacial. Hoʻohana ʻia ma ke ʻano he hōʻailona acid-base ma ke kemika analytical. Loaʻa iā ia ke ʻano kemika like a me ke kino a me nā waiwai kemika i ka phenolphthalein, a ʻo kona ʻano hoʻokaʻawale kala ʻo 8.2(colorless)-9.8(red)(Phenolphthalein color discoloration range is 8.2-10). ʻO kona ʻano ʻakika he ʻano lactone kala ʻole, a ʻo kona ʻano kumu he ʻano quinone a ʻulaʻula.
| 'ikamu | Hōʻike |
| Lae hehee | 223-225 °C |
| Lae paila | 401.12°C (manaʻo koʻikoʻi) |
| ʻO ka mānoanoa | 1.1425 (manaʻo koʻikoʻi) |
| Hōʻike hōʻike | 1.4400 (manaʻo) |
| pKa | 9.40(ma 25 ℃) |
Hoʻohana ʻia ʻo O-Cresolphthalein ma ke ʻano he hōʻailona acid-base me kahi ʻano wehe ʻana o ka pH8.2(colorless) a i ka 9.8(red).
25kg / pahu a i ʻole e like me nā koi o ka mea kūʻai aku.
O-Cresolphthalein CAS 596-27-0
O-Cresolphthalein CAS 596-27-0
