5-Bromopyridine-2-carboxylic acid (CAS # 30766-11-1)
| Awọn aami ewu | Xi - Irritant |
| Awọn koodu ewu | 36/37/38 - Irritating si oju, eto atẹgun ati awọ ara. |
| Apejuwe Abo | S24/25 - Yago fun olubasọrọ pẹlu awọ ara ati oju. S36 - Wọ aṣọ aabo to dara. S26 - Ni ọran ti olubasọrọ pẹlu awọn oju, fi omi ṣan lẹsẹkẹsẹ pẹlu ọpọlọpọ omi ki o wa imọran iṣoogun. S37 / 39 - Wọ awọn ibọwọ ti o dara ati aabo oju / oju |
| HS koodu | 29333990 |
| Kíláàsì ewu | IKANU |
Ọrọ Iṣaaju
Awọn ohun-ini: 5-bromo-2-pyridine carboxylic acid jẹ awọ ti ko ni awọ si ina lulú kristali ofeefee. O ti wa ni tiotuka ninu omi, oti ati ether, ati die-die tiotuka ni benzene ati epo ether. O jẹ iduroṣinṣin ni iwọn otutu yara, ṣugbọn awọn iṣọrọ decomposes ni awọn iwọn otutu giga.
Nlo: 5-bromo-2-pyridine carboxylic acid ni a maa n lo bi agbedemeji ni iṣelọpọ Organic.
Ọna igbaradi: Awọn ọna igbaradi pupọ wa ti 5-bromo-2-pyridine carboxylic acid. Ọna ti o wọpọ ni lati fesi 2-pyridine carboxylic acid pẹlu bromine lati ṣe agbejade 5-bromo-2-pyridine carboxylic acid. Ihuwasi yii le ṣee ṣe ni acetic acid ati iwọn otutu ifasẹyin ti gbona ni iwọn otutu yara. Ni opin ifasẹyin, ọja le ṣee gba nipasẹ crystallization ati sisẹ.
Alaye Aabo: 5-Bromo-2-pyridine carboxylic acid jẹ ailewu gbogbogbo labẹ awọn ipo deede ti lilo. Awọn ilana ṣiṣe ailewu yẹ ki o tẹle ati fipamọ si ibi gbigbẹ, ibi tutu, kuro lati ina ati awọn oxidants.
