2 5-Difluorobromobenzene (CAS # 399-94-0)
| Awọn koodu ewu | 36/37/38 - Irritating si oju, eto atẹgun ati awọ ara. |
| Apejuwe Abo | S26 - Ni ọran ti olubasọrọ pẹlu awọn oju, fi omi ṣan lẹsẹkẹsẹ pẹlu ọpọlọpọ omi ki o wa imọran iṣoogun. S36 / 37/39 - Wọ aṣọ aabo to dara, awọn ibọwọ ati aabo oju / oju. S2637/39 - S37 / 39 - Wọ awọn ibọwọ ti o dara ati aabo oju / oju |
| UN ID | UN 2922 |
| WGK Germany | 3 |
| HS koodu | 29039990 |
| Akọsilẹ ewu | Flammable |
| Kíláàsì ewu | IRU, FLAMABLE |
Ọrọ Iṣaaju
2,5-Difluorobromobenzene jẹ ẹya Organic yellow. Atẹle jẹ ifihan alaye si awọn ohun-ini rẹ, awọn lilo, awọn ọna iṣelọpọ ati alaye ailewu:
Didara:
2,5-Difluorobromobenzene jẹ omi ti ko ni awọ pẹlu oorun ti o yatọ. O jẹ tiotuka ti ko dara ninu omi ṣugbọn tiotuka ninu awọn olomi Organic gẹgẹbi awọn ọti, ethers, ati awọn ketones.
Lo:
2,5-Difluorobromobenzene nigbagbogbo lo bi agbedemeji pataki ni iṣelọpọ Organic. O tun le ṣee lo bi ligand fun awọn ayase organometallic ati lilo ninu awọn aati aropo, awọn aati idapọmọra, ati bẹbẹ lọ ninu awọn aati iṣelọpọ Organic.
Ọna:
Ọna igbaradi ti 2,5-difluorobromobenzene jẹ eka ati pe o le ṣepọ nigbagbogbo nipasẹ awọn aati atẹle:
Ni iwaju bromobenzene, cuprous bromide ati difluoromethanesulfonamide ni a ṣe ni iwaju bromobenzene lati gbejade 2,5-difluorobromobenzene.
Phenylmagnesium bromide ti ni ifasilẹ pẹlu fluoride cuprous lati ṣe ipilẹṣẹ 2,5-diphenyldifluoroethane, eyiti a tẹriba si bromination ati awọn aati iodination lati gba 2,5-difluorobromobenzene.
Alaye Abo:
2,5-Difluorobromobenzene jẹ irritating ati pe o le fa idamu nipasẹ ifasimu, awọ ara, tabi oju oju. Ifihan taara si awọ ara ati oju yẹ ki o yago fun lakoko olubasọrọ, ati awọn ohun elo aabo ti ara ẹni gẹgẹbi awọn ibọwọ aabo ati awọn goggles yẹ ki o wọ ti o ba jẹ dandan. Ni igbaradi ati lilo, akiyesi yẹ ki o san si ina ati idena bugbamu, ati rii daju awọn ipo atẹgun ti o dara. Nigbati o ba nlo ati titoju, 2,5-difluorobromobenzene yẹ ki o wa ni ipamọ ni iwọn otutu ti o dara ati ninu apo ti a fi pa, kuro lati ina, ooru ati awọn oxidants.
