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

Believe Chemical shine jagoran China 2-Chloro-5-nitropyridine CAS 4548-45-2 masana'anta, mai kaya da fitarwa. Mance da bin ingantattun samfuran samfuran, ta yadda abokan cinikinmu da yawa sun gamsu da 2-Chloro-5-nitropyridine CAS 4548-45-2. Shandong Amince

Muna da kyau a fa'idodin samfuran sinadarai a fagen. Ana fitar da samfuranmu zuwa Turai, Amurka, Japan, Koriya ta Kudu, kudu maso gabashin Asiya da sauran ƙasashe da yankuna. Tare da kimiyya da fasaha a matsayin jagora, gaskiya a matsayin tushe, inganci a matsayin rayuwa, da kuma dogara ga ra'ayin kasuwanci na ƙididdigewa da ci gaba, muna fatan gaske don kafa musanya da haɗin kai tare da abokan ciniki na gida da na waje don samar da wadata!

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

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

Matsayin narkewa 105-108°C(lit.)
Matsayin tafasa 256.6 ± 20.0 ° C (An annabta)
Maɗaukaki 1.6616 (ƙididdigar ƙididdiga)
Indexididdigar haɓakawa 1.5500 (ƙididdiga)
Matsakaicin zafin jiki na 158 ° C
Yanayin Ma'ajiya Ma'ajiyar wuri, Seledindry, Ƙirar acidity na ɗaki (pKa) -4.22± 0.10 (An annabta)
Ilimin Halitta Crystalline Foda
LauniLightyellowtobeige
Solubilityinhotmethanol.Ruwan mai narkewa.

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

Hanyar shirye-shirye na yin amfani da dichlorine monoxide don shirya 2-chloro-5-nitropyridine shine haɗuwa da 3-nitropyridine da 1-3 adadin alkali a cikin molar rabo, 1-2 sau adadin gishiri chloride da sauran ƙarfi yana hade daidai. , kuma sanyaya zuwa -15 ° C zuwa -10 ° C a ƙananan zafin jiki; bayan narkar da 2-3 molar rabo na dichloride monoxide a cikin sauran ƙarfi, an jefa shi a cikin cakuda dauki karkashin cikakken motsawa, kuma a kiyaye a -10 ° C. Zuwa 0 ° C, an gama juzu'in juzu'i na tsawon sa'o'i 2, an ɗaga zafin jiki zuwa zafin jiki kuma ya ci gaba da motsawa har tsawon sa'o'i 2 har sai abin da ya dace na albarkatun kasa 3-nitropyridine ya cika, an zubar da reactant cikin ruwan kankara, Organic Layer aka rabu, da Organic Layer aka tattara, da kuma taro taro na Organic Layer aka wanke da 5% hydrochloric acid sau daya, wanke da ruwa sau daya, bushe da anhydrous magnesium sulfate, da kuma ƙafe Organic kaushi karkashin rage matsa lamba don samun 2. - chloro-5-nitropyridine.