2-Chloro-5-nitropyridine CAS 4548-45-2

Believe Chemical ke moetsi ea ka sehloohong oa China 2-Chloro-5-nitropyridine CAS 4548-45-2, mofani oa thepa le kantle ho naha. Ho khomarela ho lelekisa boleng bo phethahetseng ba lihlahisoa, e le hore 2-Chloro-5-nitropyridine CAS 4548-45-2 ea rona e khotsofatsoe ke bareki ba bangata. Shandong Dumela

Re hantle melemo ea lihlahisoa tsa lik'hemik'hale tšimong. Lihlahisoa tsa rona li romeloa linaheng tse ling ho ea Europe, United States, Japane, Korea Boroa, Asia Boroa-bochabela le linaheng tse ling le libaka. Ka saense le thekenoloji e le tataiso, botšepehi e le motheo, boleng e le bophelo, le ho itšetleha ka khopolo ea khoebo ea ho nchafatsa le nts'etsopele, re tšepa ka tieo ho theha phapanyetsano le tšebelisano e pharaletseng le bareki ba malapeng le ba tsoang linaheng tse ling ho theha nala!

2-Chloro-5-nitropyridine CAS 4548-45-2 Tlhaloso ea Lik'hemik'hale

2-Chloro-5-nitropyridine CAS 4548-45-2 Lisebelisoa tsa Lik'hemik'hale

Sebaka se qhibilihang ke 105-108°C(lit.)
Sebaka se belang 256.6±20.0°C(Ho Boletsoe esale pele)
Density 1.6616 (roughestimate)
Refractive index 1.5500 (khakanyo)
Sebaka se benyang ke 158°C
Maemo a polokelo Keepindarkplace, Sealedindry, RoomTemperature acidity coefficient (pKa) -4.22±0.10 (E boletsoeng esale pele)
MorphologyCrystallinePowder
ColourLightyellowtobeige
Solubilityinhotmethanol.Insolubleinwater.

2-Chloro-5-nitropyridine CAS 4548-45-2 Kopo

Mokhoa oa ho itokisa oa ho sebelisa dichlorine monoxide ho lokisa 2-chloro-5-nitropyridine ke ho kopanya 3-nitropyridine le makhetlo a 1-3 ho feta alkali ka tekanyo ea molar, makhetlo a 1-2 ho feta letsoai la chloride le The solvent e tsoakoa ka ho lekana. , 'me e pholile ho -15 ° C ho -10 ° C mocheso o tlaase; ka mor'a ho qhibiliha ka makhetlo a 2-3 tekanyo ea molar ea dichloride monoxide ka har'a solvent, e theohela ka har'a motsoako oa karabelo tlas'a ho hlohlelletsa ka ho feletseng, 'me e bolokiloe ho -10 ° C. Ho isa ho 0 ° C, tlatsetso ea dropwise e ile ea phethoa ka lihora tse 2, mocheso o ile oa phahamisetsoa mocheso oa kamore 'me oa tsoela pele ho sisinyeha ka lihora tse 2 ho fihlela karabelo ea lihlahisoa tse tala 3-nitropyridine e phethiloe, reactant e tšeloa ka metsing a leqhoa, organic layer e ile ea aroloa, lera la manyolo le ile la bokelloa, 'me bongata ba motsoako oa manyolo e ne e le Hlatsoa ka 5% hydrochloric acid hang, hlatsoa ka metsi hang, o omelle ka anhydrous magnesium sulfate,' me u moafale mokelikeli oa manyolo tlas'a khatello e fokotsehileng ho fumana 2. - chloro-5-nitropyridine.