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2 5-Dibromo-3-nitropyridine (CAS # 15862-37-0)

Chemical Property:

Molecular Formula C5H2Br2N2O2
Molar Mass 281.89 ib
Qhov ntom 2 +-.0.06 g / cm3 (Tshaj tawm)
Melting Point 92.0 txog 96.0 ° C
Boling Point 272.7 ± 35.0 ° C (Tshaj tawm)
Flash Point 132.7°C dej
Solubility Soluble hauv Methanol
Vapor Siab 0.00263mmHg ntawm 25 ° C
Qhov tshwm sim Khoom
Xim Daj
pKa -5.60 ± 0.20 (Tshaj tawm)
Kev cia khoom nyob rau hauv inert gas (nitrogen los yog Argon) ntawm 2-8 ° C
Refractive Index 1.649 ib

Product Detail

Khoom cim npe

Risk thiab Safety

Risk Codes 25 – Toxic yog nqos
Kev nyab xeeb piav qhia 45 - Thaum muaj xwm txheej los sis yog tias koj tsis xis nyob, nrhiav kev kho mob tam sim ntawd (saib daim ntawv lo thaum twg los tau.)
UN IDs UN 2811 6.1 / PGIII
WGK Germany 3
Hazard Class IRRITANT

Taw qhia
2,5-Dibromo-3-nitropyridine (2,5-dibromo-3-nitropyridine) yog cov organic compound. Qee cov khoom, kev siv, kev npaj thiab kev nyab xeeb ntawm 2,5-dibromo-3-nitropyridine yog muab hauv qab no:

Khoom:
- Cov tsos mob: 2,5-Dibromo-3-nitropyridine yog cov khoom daj.
- Solubility: 2,5-Dibromo-3-nitropyridine yog soluble hauv organic solvents xws li ethanol, dimethyl sulfoxide thiab dichloromethane thiab insoluble hauv dej.

Kev siv:
- 2,5-Dibromo-3-nitropyridine yog siv los ua ib qho nruab nrab hauv cov organic synthesis.
- Nws kuj yog siv rau hauv kev npaj ntawm nitrogen-muaj heterocyclic tebchaw, xws li pyridine derivatives.

Txoj Kev Npaj:
- Kev npaj ntawm 2,5-dibromo-3-nitropyridine feem ntau yog ua los ntawm cov tshuaj tiv thaiv hluavtaws. Ib txoj hauv kev zoo sib xws yog kom tau txais cov khoom lag luam los ntawm pyridine ua cov khoom pib los ntawm bromination thiab nitration. Cov kauj ruam hluavtaws tiag tuaj yeem hloov kho raws li qhov xav tau.

Cov ntaub ntawv kev nyab xeeb:
- 2,5-Dibromo-3-nitropyridine ua rau tsis muaj kev pheej hmoo tshwj xeeb ntawm kev nyab xeeb nyob rau hauv ib txwm siv.
-Txawm li cas los xij, raws li tshuaj lom neeg, kev kuaj kev nyab xeeb ib txwm yuav tsum tau ua raws. Kev sib cuag nrog daim tawv nqaij, qhov muag thiab cov mucous membranes yuav tsum zam. Kev tiv thaiv tus kheej xws li hnab looj tes, tsom iav thiab lub tsho hauv chav kuaj yuav tsum tau soj ntsuam thaum tuav.
-Thaum muaj kev tsis sib haum xeeb lossis nqus tau cov khoom sib xyaw, nrhiav kev kho mob tam sim ntawd. Nyob rau hauv rooj plaub ntawm daim tawv nqaij los yog qhov muag, yaug tam sim ntawd nrog dej kom ntau thiab nrhiav kev pab kho mob.


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