leqephe_banner

sehlahisoa

4-bromo-5-methyl-1H-pyrazole-3-carboxylic acid (CAS# 82231-52-5)

Thepa ea Lik'hemik'hale:

Foromo ea limolek'hule C5H5BrN2O2
'Misa oa Molar 205.01
Botenya 1.934±0.06 g/cm3(E boletsoeng esale pele)
Melting Point 273-276°(Dec)
Boling Point 410.8±45.0 °C(E boletsoeng esale pele)
Flash point 202.3°C
Khatello ea Mouoane 1.74E-07mmHg ho 25°C
pKa 2.70±0.10(E boletsoeng esale pele)
Boemo ba polokelo 2-8℃
Refractive Index 1.64

Lintlha tsa Sehlahisoa

Li-tag tsa Sehlahisoa

Likhoutu tsa Kotsi 20/21/22 - E kotsi ka ho hema, ho kopana le letlalo le haeba e koetsoe.
Tlhaloso ea Tšireletseho S24/25 - Qoba ho kopana le letlalo le mahlo.
S36/37 - Apara liaparo tse loketseng tsa tšireletso le liatlana.
Khoutu ea HS 29331990
Sehlopha sa Likotsi TS'OALANG

 

Selelekela

Asiti (asiti) ke motsoako oa tlhaho. Se latelang ke selelekela sa sebopeho sa eona, tšebeliso, tlhahiso le tlhaiso-leseling ea polokeho:

 

Tlhaho:

-Ponahalo: Sebopeho se tloaelehileng se tšoeu ho ea ho phofo e tšoeu ea kristale.

- Sebaka sa ho qhibiliha: Sebaka se qhibilihang sa motsoako hangata se maemong a 100-105 ° C.

-Solubility: E na le solubility e ntle ho li-solvents tse ling tsa polar, tse kang ethanol, dimethyl sulfoxide, joalo-joalo Empa ho qhibiliha ha metsi ho tlaase.

 

Sebelisa:

-acid ke sebaka se sebelisoang ka tloaelo tšimong ea organic synthesis. E ka sebelisoa ho kopanya mefuta e fapaneng ea metsoako ea pyrazole kapa pyrimidine.

-Motsoako ona o ka boela oa sebelisoa e le thepa e tala tšimong ea meriana.

 

Mokhoa oa ho itokisa:

-Ho lokisetsa acid e ka finyelloa ka karabelo ea mehato e mengata. Mokhoa o tloaelehileng oa maiketsetso ke ho qala ho tsoa ho ntho ea pyrazole ebe qetellong o kopanya sehlahisoa se lebisitsoeng ka letoto la liphetoho tsa lik'hemik'hale.

-Mokhoa o ikhethileng oa ho itokisa o ka fapana ho latela sepheo sa thuto, boteng ba data, joalo-joalo, 'me u ka sheba lingoliloeng tse amehang tsa saense kapa tsa patent bakeng sa tlhaiso-leseling e batsi.

 

Lintlha tsa Tšireletseho:

-eti hangata ke motsoako o tsitsitseng tlas'a tšebeliso e nepahetseng le polokelo. Leha ho le joalo, joaloka lik’hemik’hale leha e le life, e ntse e hloka ho sebetsoa ka hloko.

-E ka 'na ea halefisa, kahoo ho lokela ho nkoa tlhokomelo ho qoba ho kopana le letlalo, mahlo kapa tsela ea ho hema.

-Ha u sebelisa le ho sebetsana, latela mekhoa e nepahetseng ea laboratori le mehato ea ho itšireletsa, 'me u netefatse maemo a nepahetseng a moea.


  • E fetileng:
  • E 'ngoe:

  • Ngola molaetsa wa hao mona mme o re romele wona