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khoom

2 4-Dibromobenzoic acid CAS # 611-00-7

Chemical Property:

Molecular Formula C7H4Br2O2
Molar Mass 279.91 ib
Qhov ntom 1.9661 (kev kwv yees kwv yees)
Melting Point 171.0 txog 175.0 ° C
Boling Point 336.6 ± 32.0 ° C (Tshaj tawm)
Flash Point 157.3°C dej
Solubility Soluble hauv Methanol
Vapor Siab 4.36E-05mmHg ntawm 25 ° C
Qhov tshwm sim Cov hmoov daj
Xim Dawb mus Yuav luag dawb
pKa 2.62 ± 0.10 (Kev kwv yees)
Kev cia khoom Muab kaw rau hauv qhuav, Chav Kub
Refractive Index 1.4970 (kwv yees)
Physical thiab Chemical Properties Cov hmoov daj los yog nplooj zoo li cov muaju. Melting Point 174 ° C (sublimation). Soluble nyob rau hauv cawv thiab ether, me ntsis soluble nyob rau hauv dej kub, yuav volatilized nrog dej vapor.

Product Detail

Khoom cim npe

Hazard Cov Cim Xi-xaj
Risk Codes 36/37/38 – Khaus qhov muag, ua pa thiab tawv nqaij.
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.
HS Code 291639 0

 

Taw qhia

2,4-Dibromobenzoic acid yog cov organic compound. Nws yog dawb crystalline los yog crystalline hmoov. Cov hauv qab no yog kev qhia txog cov khoom, kev siv, kev npaj thiab cov ntaub ntawv kev nyab xeeb ntawm 2,4-dibromobenzoic acid:

 

Zoo:

- Cov tsos mob: Dawb crystals lossis crystalline hmoov.

- Solubility: Soluble nyob rau hauv organic solvents xws li ethanol, ether thiab chloroform, insoluble nyob rau hauv dej.

 

Siv:

- Nws kuj tuaj yeem siv los ua cov tshuaj tua kab mob antioxidant thiab roj hmab ntxiv, thiab lwm yam.

 

Txoj kev:

- Txoj kev npaj ntawm 2,4-dibromobenzoic acid yog tsuas yog tau los ntawm bromination cov tshuaj tiv thaiv ntawm benzoic acid. Nyob rau hauv cov kauj ruam tshwj xeeb, benzoic acid ua ntej reacts nrog bromine nyob rau hauv lub xub ntiag ntawm ib tug acid catalyst los tsim bromobenzoic acid. Tom qab ntawd, bromobenzoic acid yog hydrolyzed muab 2,4-dibromobenzoic acid.

 

Cov ntaub ntawv kev nyab xeeb:

- 2,4-Dibromobenzoic acid yog qhov ruaj khov ntawm chav tsev kub, tab sis tuaj yeem decompose ntawm qhov kub thiab txias los yog qhib nplaim taws los tsim cov pa phem.

- Nws yog khaus thiab tuaj yeem ua rau khaus thiab tsis xis nyob ntawm daim tawv nqaij, qhov muag, thiab ua pa.

- Kev tiv thaiv tus kheej tsim nyog xws li hnab looj tes tiv thaiv, tiv thaiv qhov muag, thiab cov cuab yeej tiv thaiv ua pa yuav tsum tau siv thaum siv, khaws cia, thiab tuav.

- Nws yuav tsum tau khaws cia kom deb ntawm qhov hluav taws kub thiab oxidizing tus neeg sawv cev thiab khaws cia rau hauv qhov chaw txias, qhov cua.


  • Yav dhau los:
  • Tom ntej:

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