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2 3-DIBROMO-5-CHLORO PYRIDINE (CAS # 137628-17-2)

Chemical Property:

Molecular Formula C5H2Br2ClN
Molar Mass 271.34 Nws
Qhov ntom 2.136 ± 0.06 g / cm3 (Kev kwv yees)
Melting Point 41.0 txog 45.0 ° C
Boling Point 259.9 ± 35.0 ° C (Tshaj tawm)
Flash Point 111.004°C dej
Vapor Siab 0.02mmHg ntawm 25 ° C
Qhov tshwm sim daj daj crystalline hmoov
pKa -3.85 ± 0.20 (Tshaj tawm)
Kev cia khoom Inert cua, Chav Kub
Refractive Index 1.62 ib
MDL ib 08687254

Product Detail

Khoom cim npe

Risk thiab Safety

Risk Codes R36/37/38 - Kab mob rau qhov muag, ua pa thiab tawv nqaij.
R25 - Toxic yog nqos
Kev nyab xeeb piav qhia S26 - Thaum sib cuag nrog lub qhov muag, yaug tam sim ntawd nrog dej txaus thiab nrhiav kev kho mob.
S37 - Hnav cov hnab looj tes tsim nyog.
S45 - Thaum muaj xwm txheej lossis yog tias koj tsis xis nyob, nrhiav kev kho mob tam sim ntawd (qhia daim ntawv lo thaum twg ua tau.)
UN IDs UN 2811 6.1 / PGIII
Hazard Class IRRITANT

2 3-DIBROMO-5-CHLORO PYRIDINE (CAS # 137628-17-2) Kev taw qhia

2,3-dibromo-5-chloropyridine yog cov organic compound. Cov hauv qab no yog kev qhia txog cov khoom, kev siv, kev npaj, thiab cov ntaub ntawv kev nyab xeeb ntawm cov khoom sib xyaw:

xwm:
-Cov tsos mob: 2,3-dibromo-5-chloropyridine yog xim tsis muaj xim rau daj.
-Solubility: Nws muaj ib tug siab solubility nyob rau hauv cov organic solvents tab sis ib tug tsawg solubility nyob rau hauv dej.

Lub hom phiaj:
2,3-dibromo-5-chloropyridine muaj ntau yam kev siv hauv cov organic synthesis, feem ntau yog siv rau hauv cov hauv qab no:
-Raws li photosensitizer, nws tuaj yeem siv rau hauv thaj chaw xws li luam ntawv thiab duab ntau lawm.

Txoj kev tsim khoom:
Txoj kev npaj ntawm 2,3-dibromo-5-chloropyridine tuaj yeem ua tiav los ntawm cov kauj ruam hauv qab no:
Nyob rau hauv cov xwm txheej tsim nyog, teb 2,3-dibromopyridine nrog phosphorus pentachloride los tsim 2,3-dibromo-5-chloropyridine pentachloride.
Tom qab ntawd, ua rau pentachloride nrog sodium hydroxide lossis lwm cov tshuaj alkaline kom tau 2,3-dibromo-5-chloropyridine.

Cov ntaub ntawv kev ruaj ntseg:
-Kev siv thiab kev ua haujlwm ntawm 2,3-dibromo-5-chloropyridine yuav tsum tau ua nyob rau hauv qhov chaw uas muaj cua zoo kom tsis txhob cuam tshuam rau nws cov ntxhiab los yog hmoov av.
- Thaum lub sijhawm ua haujlwm, cov cuab yeej tiv thaiv tsim nyog yuav tsum hnav, suav nrog cov hnab looj tes tiv thaiv tshuaj, tsom iav, thiab khaub ncaws tiv thaiv.
-2,3-dibromo-5-chloropyridine belongs rau cov organic bromides thiab muaj qee yam toxicity thiab irritability. Nws yuav tsum tau tuav thiab khaws cia kom zoo kom tsis txhob muaj kev sib cuag nrog cov combustibles thiab kub kub.
-Thaum siv thiab pov tseg ntawm qhov sib xyaw no, thov ua raws li cov txheej txheem kev nyab xeeb kev ua haujlwm thiab cov kev cai lij choj thiab cov cai.


  • Yav dhau los:
  • Tom ntej:

  • Sau koj cov lus ntawm no thiab xa tuaj rau peb