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sehlahisoa

3-Acetyl pyridine (CAS#350-03-8)

Thepa ea Lik'hemik'hale:

Foromo ea limolek'hule C7H7NO
'Misa oa Molar 121.14
Botenya 1.102 g/mL ho 25 °C (hote.)
Melting Point 11-13 °C (hote.)
Boling Point 220 °C (hote.)
Flash point 302°F
JECFA Nomoro 1316
Ho qhibiliha ha Metsi HLAHLOBALA METSING A CHESA
Khatello ea Mouoane 0.3Pa ka 20 ℃
Ponahalo Mokelikeli o bonaletsang
Matla a Khoheli a khethehileng 1.102
Mmala E hlakileng e se nang mmala ho isa ho mosehla
Merck 14,6116
BRN 107751
pKa pK1: 3.256(+1) (25°C)
PH 6.5-7.5 (H2O, 20℃)
Boemo ba polokelo Boemo bo sa tsitsang, Mocheso oa Kamore
Refractive Index n20/D 1.534(lit.)
MDL MFCD00006396
Thepa ea 'Mele le ea Lik'hemik'hale metsi a se nang mmala ho isa ho o mosehla
tekano 1.102
mocheso o qhibilihang ke 12-13 ° C
ntlha e belang 220°C
refractive index 1.5326-1.5346
ntlha ea khanya ea 104°C
METSI A TŠHILENG KA METSI A TŠEHELANG
Sebelisa E sebelisoa e le motsoako oa sodium risedronate bakeng sa phekolo ea lefu la masapo; Bohareng ba chefo e bolaeang likokoanyana

Lintlha tsa Sehlahisoa

Li-tag tsa Sehlahisoa

Likhoutu tsa Kotsi R25 – E chefo ha e koetsoe
R36/38 – Ho hlohlona mahlong le letlalong.
R36/37/38 – Ho tena mahlo, tsamaiso ya ho hema le letlalo.
R20/21/22 – E kotsi ka ho hema, ho kopana le letlalo le ha e koetsoe.
Tlhaloso ea Tšireletseho S45 – Ha ho ka etsahala kotsi kapa ha o ikutlwa o sa phele hantle, batla keletso ya bongaka hanghang (bontsha leibole neng kapa neng ha ho kgoneha.)
S37/39 - Apara liatlana tse loketseng le tšireletso ea mahlo / sefahleho
S28A -
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.
Li-ID tsa UN UN 2810 6.1/PG 3
WGK Jeremane 3
RTECS OB5425000
LIKHOUTU FLUKA BRAND F 8-10
TSCA Ee
Khoutu ea HS 29333999
Tsebiso ea Kotsi E tenang
Sehlopha sa Likotsi 6.1
Sehlopha sa ho paka II
Chefo LD50 orl-rat: 46 mg/kg JACTDZ 1,681,92

 

Selelekela

3-Acetylpyridine ke motsoako oa lintho tse phelang. Se latelang ke selelekela ho tse ling tsa thepa, ts'ebeliso, mekhoa ea ho lokisa le tlhaiso-leseling ea polokeho ea 3-acetylpyridine:

 

Boleng:

Ponahalo: 3-acetylpyridine ha e na 'mala ho isa ho likristale tse mosehla tse khanyang kapa lintho tse tiileng.

Solubility: 3-acetylpyridine e qhibiliha ka har'a metsoako ea tlhaho e kang alcohols, ethers le ketones, 'me e qhibiliha hanyenyane metsing.

Lintho tsa Lik'hemik'hale: 3-Acetylpyridine ke motsoako o fokolang oa asiti o nang le asiti ka metsing.

 

Sebelisa:

Joalo ka k'hemik'hale ea organic synthesis: 3-acetylpyridine e sebelisoa hangata ho organic synthesis reactions e le solvent, acylation reagent, and catalyst.

E sebelisoa ho dae synthesis: 3-acetylpyridine e ka sebelisoa ha ho etsoa dae le li-pigments.

 

Mokhoa:

Ho na le mekhoa e mengata ea ho lokisa 3-acetylpyridine, 'me e tloaelehileng e fumanoa ka esterification reaction ea stearic anhydride le pyridine. Ka kakaretso, stearic anhydride le pyridine li itšoara ka solvent ka tekanyo ea molar ea 1: 1, 'me motsoako o feteletseng oa acid o eketsoa nakong ea karabelo,' me karabelo ea esterification e laoloang ke thermodynamically e etsoa. Sehlahisoa sa 3-acetylpyridine se ile sa fumanoa ka crystallization, filtration, le ho omisa.

 

Lintlha tsa Tšireletseho:

3-Acetylpyridine e lokela ho bolokoa le ho tšoaroa ka tsela e qobang ho kopana le li-oxidants ho qoba mollo kapa ho phatloha.

Latela mekhoa ea ts'ireletso ea laboratori 'me u apare lisebelisoa tse nepahetseng tsa ts'ireletso joalo ka liatlana, likhalase le mese ha u sebelisa.

Qoba ho hema, ho e noa, kapa ho kopana le letlalo le mahlo, 'me u leke ho sebetsa sebakeng se nang le moea o motle.

Tlhokomelo e lokela ho nkoa ho qoba lerole le likaroloana ha u tšoara 3-acetylpyridine ho fokotsa kotsi ea ho hema.


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  • E 'ngoe:

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