5-bromo-2-methylphenylhydrazine hydrochloride (CAS # 214915-80-7)

Taw qhia

hydrochloride yog ib qho organic compound nrog cov tshuaj formula C7H8BrN2 · HCl. Cov hauv qab no yog cov lus qhia txog nws qhov xwm txheej, kev siv, kev npaj thiab kev nyab xeeb cov ntaub ntawv:

Xwm:

-Cov tsos mob: tsis muaj xim lossis yellowish Crystal

- Melting point: Txog 155-160 ° C

-Solubility: me ntsis soluble hauv dej, zoo solubility hauv ethanol thiab ether

-Toxicity: Lub compound muaj qee qhov kev mob toxicity thiab yuav tsum tau ua tib zoo saib xyuas thiab tsis txhob nqus pa thiab tiv thaiv daim tawv nqaij

Siv:

-hydrochloride tuaj yeem siv los ua ke rau lwm cov organic tebchaw, xws li tshuaj intermediates thiab dyes

-Nws kuj tseem siv tau los ua ib qho tseem ceeb ntawm cov organic synthesis reagent, ua tus catalyst hauv cov organic synthesis tshuaj.

Txoj kev:

Txoj kev npaj ntawm hydrochloride tuaj yeem ua los ntawm cov kauj ruam hauv qab no:

1. Dissolve 2-bromo-5-methylaniline hauv ethanol

2. Ntxiv sodium nitrite thiab hydrochloric acid, diazotization cov tshuaj tiv thaiv ntawm chav tsev kub

3. Ntxiv anhydrous ether rau extraction, thiab ces siv hydrogen chloride gas kom saturate ether txheej kom tau cov khoom

4. Thaum kawg, hydrochloride yog tau los ntawm crystallization

Cov ntaub ntawv kev nyab xeeb:

-Cov khoom xyaw yog tshuaj lom thiab yuav tsum tau saib xyuas

- Ua tib zoo saib xyuas cov kev tiv thaiv thaum siv thiab khaws cia, tsis txhob nqus los yog sib cuag nrog daim tawv nqaij thiab qhov muag

- Ua tib zoo saib xyuas qhov cua zoo thaum lub sijhawm ua haujlwm

-Yog tias koj raug mob ntawm daim tawv nqaij lossis ob lub qhov muag, yaug tam sim nrog dej ntau thiab nrhiav kev pab kho mob

-Thov khaws thiab tuav cov khoom sib xyaw kom zoo, tsis txhob sib cuag nrog cov oxidants thiab cov kua qaub uas muaj zog tiv thaiv cov xwm txheej tsis zoo