2 5-Dibromo-4-methylpyridine (CAS# 3430-26-0)
| Koodu ihe egwu | R36 / 37/38 - na-akpasu iwe na anya, usoro iku ume na akpụkpọ ahụ. R20/21/22 - na-emerụ ahụ site na iku ume, na kọntaktị na akpụkpọ ahụ ma ọ bụrụ na loro ya. R41 - Ihe ize ndụ nke mmebi anya dị njọ R37 / 38 - na-akpasu iwe na usoro iku ume na akpụkpọ ahụ. R22 - na-emerụ ma ọ bụrụ na iloro ya |
| Nkọwapụta nchekwa | S36 / 37/39 - Yiri uwe nchebe kwesịrị ekwesị, uwe aka na nchebe anya / ihu. S26 - N'ihe banyere kọntaktị na anya, kpochaa ozugbo na ọtụtụ mmiri ma chọọ ndụmọdụ ahụike. S39 - Yiri anya / nchedo ihu. |
| WGK Germany | 3 |
| Koodu HS | 29333999 |
| Ihe edeturu egwu | Na-emerụ ahụ |
| Klas Hazard | Iwe |
Okwu mmalite
2,5-Dibromo-4-methylpyridine bụ ngwakọta organic. Ihe na-esonụ bụ mmeghe zuru ezu nke njirimara, ojiji, ụzọ nkwadebe na ozi nchekwa nke ogige a:
Ogo:
2,5-Dibromo-4-methylpyridine bụ ihe siri ike nke nwere ụdị kristal na-enweghị agba na-acha odo odo. Ọ nwere ike solubility na ọ bụ soluble na ọtụtụ organic solvents. Ọ bụ ngwakọta na-adịghị akwụsi ike nke na-akụda ngwa ngwa n'ìhè anyanwụ.
Jiri:
A na-ejikarị onyinye a eme ihe dị ka akụrụngwa na reagent na njikọ organic.
Usoro:
A na-akwado 2,5-Dibromo-4-methylpyridine site na mmeghachi omume nke brominated p-toluene na pyridine. P-toluene na-emeghachi omume na cuprous bromide iji mepụta 2-bromotoluene, nke na-emeghachi omume na pyridine n'okpuru catalysis acid iji mepụta ngwaahịa ikpeazụ.
Ozi nchekwa:
2,5-Dibromo-4-methylpyridine kwesịrị iji nlezianya mee ya dịka ọ bụ ihe na-egbu egbu. Ekwesịrị ịkpachapụ anya ka ịzere kọntaktị na akpụkpọ ahụ, anya, na traktị iku ume mgbe ị na-arụ ọrụ. Ngwa nchedo onwe onye kwesịrị ekwesị dị ka uwe mkpuchi, akwa mkpuchi na ihe mkpuchi ga-eyi mgbe ejiri ya na ụlọ nyocha. Mgbe a na-echekwa ya ma na-edozi ya, ekwesịrị idowe ya pụọ na ihe ndị na-ere ọkụ na ihe ndị na-eme ihe na-ekpo ọkụ. Ọ bụrụ na a na-eloda ihe ahụ ma ọ bụ kuru ya n'amaghị ama, a ga-achọ nlekọta ahụike ozugbo. Mgbe a na-ekpofu ihe mkpofu, ekwesịrị ịgbaso iwu mpaghara na ikpofu ihe mkpofu ahụ nke ọma iji zere mmetọ na gburugburu ebe obibi.
