Cresol Red CAS: 1733-12-6
| Nọmba katalogi | XD90482 |
| Orukọ ọja | Cresol Pupa |
| CAS | 1733-12-6 |
| Ilana molikula | C21H18O5S |
| Òṣuwọn Molikula | 382.43 |
| Awọn alaye ipamọ | Ibaramu |
| Ti irẹpọ Owo idiyele koodu | 29349990 |
Ọja Specification
| Isonu lori Gbigbe | (O pọju) 3.00% |
| Ifarahan | Dudu Red Powder |
| Ayẹwo | 99% |
| Solubility ni 0.1% (95% Ethanol) | Ko Yellow Solusan |
| pH Orilede - Awọ Change | pH6.5 (Yellow) - pH8.8 (Eleyi ti) |
| Igi gigun ti Gbigba O pọju (pH6.5) λmax1 | 432,0-436,0 nm |
| Gbigba Ni pato (E1%/1cm) ni λ max1 | (Mi.) 490 |
| Wavelenght ti O pọju Gbigba (pH 8.8) λ max2 | 571.0-574.0 nm |
| Gbigba ni pato (E1%/1cm) ni λ max2 | (min.) 1000 |
Awọn ohun-ini kemikali: awọn kirisita pẹlu luster alawọ ewe, lulú pupa-brown lẹhin lilọ.Tiotuka ninu oti ati dilute iṣuu soda hydroxide ojutu, die-die tiotuka ninu omi.
Nlo: oluranlowo itọsi acid-base.Ṣe ojutu 0.1% tabi 0.04% ojutu olomi pẹlu 20% ethanol (tu 0.04g ti ọja yii ni 1.05ml ti 0.1M NaOH ojutu), ati lẹhinna dilute si 100ml.Iwọn iyipada awọ pH: 7.2 (ofeefee) -8.8 (eleyi ti);2.0 (pupa) -3.0 (amber).
Sunmọ
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