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sehlahisoa

Pyridine-2 4-diol (CAS# 84719-31-3)

Thepa ea Lik'hemik'hale:

Foromo ea limolek'hule C5H5NO2
'Misa oa Molar 111.1
Botenya 1.3113 (khakanyo e fosahetseng)
Melting Point 272-276 °C (hote.)
Boling Point 208.19°C (khakanyo e boima)
Flash point 110.6°C
Ho qhibiliha ha Metsi 6.211g/L(20 ºC)
Solubility DMSO, Methanol
Khatello ea Mouoane 0.00192mmHg ho 25°C
Ponahalo Khalase e tšoeu
Mmala mosehla o kganyang
BRN 108533
pKa pK1:1.37(+1);pK2:6.45(0);pK3:13(+1) (20°C)
Boemo ba polokelo Boemo bo sa tsitsang, Mocheso oa Kamore
Refractive Index 1.4260 (khakanyo)
MDL MFCD00006273

Lintlha tsa Sehlahisoa

Li-tag tsa Sehlahisoa

Matšoao a Kotsi Xi - Ea halefisang
Likhoutu tsa Kotsi 36/37/38 - Ho halefisa mahlo, tsamaiso ea ho hema le letlalo.
Tlhaloso ea Tšireletseho S26 - Ha u kopana le mahlo, hlatsoa hang-hang ka metsi a mangata 'me u batle keletso ea bongaka.
S36 - Apara liaparo tse loketseng tsa tšireletso.
S37/39 - Apara liatlana tse loketseng le tšireletso ea mahlo / sefahleho
WGK Jeremane 3
RTECS UV1146800
Khoutu ea HS 29339900
Sehlopha sa Likotsi TS'OALANG

 

Selelekela

2,4-Dihydroxypyridine. E na le litšobotsi tse latelang:

 

Ponahalo: 2,4-Dihydroxypyridine ke kristale e tšoeu e tiileng.

Sollubility: E na le ho qhibiliha hamonate, 'me e qhibiliha ka metsing le mefuta e fapaneng ea metsoako ea tlhaho.

 

Ligand: Joaloka ligand bakeng sa li-transition metal complexes, 2,4-dihydroxypyridine e ka etsa li-complexes tse tsitsitseng tse nang le litšepe, tse sebelisoang haholo ha ho etsoa li-catalysts le liphetoho tsa bohlokoa tsa motsoako oa manyolo.

Corrosion inhibitor: E sebelisoa e le e 'ngoe ea likarolo tsa tšepe ea corrosion inhibitor, e ka sireletsang bokaholimo ba tšepe hore bo se ke ba bola.

 

Mokhoa oa ho lokisa 2,4-dihydroxypyridine o tjena:

 

Hydrocyanic acid reaction method: 2,4-dichloropyridine e sebetsa ka hydrocyanic acid ho fumana 2,4-dihydroxypyridine.

Mokhoa oa ho itšoara ka hydroxylation: 2,4-dihydroxypyridine e hlahisoa ke karabelo ea pyridine le hydrogen peroxide tlas'a sesebelisoa sa platinum.

 

Tlhahisoleseding ea Tšireletseho: 2,4-Dihydroxypyridine ke ntho ea lik'hemik'hale 'me e lokela ho sebelisoa ka hloko:

 

Chefo: 2,4-Dihydroxypyridine e chefo libakeng tse itseng 'me e ka baka ho teneha ha mahlo le letlalo ha e kopana. Ho kopana ka ho toba le le ho hema lerole la eona ho lokela ho qojoa.

Polokelo: 2,4-Dihydroxypyridine e lokela ho bolokoa sebakeng se omeletseng, se phodileng ho qoba ho kopana le li-oxidants le li-acid tse matla. Nakong ea polokelo, tlhokomelo e lokela ho lefshoa ho sireletsa mongobo ho thibela ho senyeha ka lebaka la mongobo.

Ho lahla litšila: Ho lahla litšila ka mokhoa o utloahalang, ho lokela ho ikamahanya le melao le melaoana ea tikoloho, ho qoba tšilafalo ea tikoloho.

 

Ha o sebelisa 2,4-dihydroxypyridine, mekhoa ea ts'ebetso ea ts'ireletso e nepahetseng le mehato ea ts'ireletso ea botho, joalo ka ho roala liatlana le likhalase, li lokela ho lateloa ho netefatsa ts'ebeliso e bolokehileng.


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  • E 'ngoe:

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