2-Chloro-3-bromo-5-nitropyridine (CAS # 5470-17-7)

Taw qhia

Nws yog ib qho organic compound uas nws cov tshuaj formula yog C5H2BrClN2O2.

Xwm:

1. Cov tsos: Nws yog ib qho khoom, feem ntau yog daj crystalline hmoov.

2. Solubility: Nws tuaj yeem yaj hauv cov kuab tshuaj organic (xws li dichloromethane, ether, thiab lwm yam), tab sis cov solubility hauv dej yog tsawg.

Siv:

Nws yog ib qho tseem ceeb nruab nrab compound, uas yog dav siv nyob rau hauv lub teb ntawm tshuaj synthesis.

1. Tshuaj synthesis: Nws tuaj yeem siv los ua cov tshuaj lom neeg lom neeg, xws li tshuaj, tshuaj tua kab, thiab lwm yam.

2. Dye synthesis: Nws tuaj yeem siv los ua cov xim dyes thiab pigments.

3. tshuaj tua kab hluavtaws: tuaj yeem siv rau cov tshuaj tua kab hluavtaws thiab tshuaj tua kab.

Txoj Kev Npaj: Kev npaj ntawm

tuaj yeem ua tau los ntawm cov tshuaj tsw qab nitration, cov kauj ruam tshwj xeeb yog raws li hauv qab no:

1. Nyob rau hauv qhov tsim nyog, pyridine yog reacted nrog concentrated nitric acid kom tau pyridine-3-nitric acid.

2. Pyridine-3-nitric acid ces reacted nrog cuprous bromide kom tau 3-bromopyridine.

3. Thaum kawg, 3-bromopyridine yog reacted nrog nyiaj chloride kom tau txais cov khoom kawg.

Cov ntaub ntawv kev nyab xeeb:

1. muaj qee qhov kev khaus khaus thiab toxicity, thov zam kev sib cuag nrog daim tawv nqaij, qhov muag thiab ua pa.

2. hauv kev ua haujlwm, yuav tsum hnav cov hnab looj tes tiv thaiv, tsom iav thiab qhov ncauj qhov ntswg thiab lwm yam khoom siv tiv thaiv tus kheej.

3. Thaum lub sij hawm cia thiab siv, nws yuav tsum tau muab cais los ntawm inflammables, oxidants thiab lwm yam khoom.

4. Thaum pov tseg cov khoom pov tseg, thov ua raws li cov cai pov tseg hauv zos kom txo tau qhov kev pheej hmoo ntawm ib puag ncig.