I-2-Chloro-4-nitrobenzoic acid CAS 99-60-5

I-Believe Chemical ingumkhiqizi ohamba phambili waseChina we-2-Chloro-4-nitrobenzoic acid CAS 99-60-5, umphakeli nomkhiqizi. Ukunamathela ekuphishekeleni ikhwalithi ephelele yemikhiqizo, ukuze i-2-Chloro-4-nitrobenzoic acid CAS 99-60-5 yethu yaneliswe amakhasimende amaningi. Shandong Kholwa

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2-Chloro-4-nitrobenzoic acid CAS 99-60-5 Ukucaciswa Kwekhemikhali

2-Chloro-4-nitrobenzoic acid CAS 99-60-5 Chemical Properties

Iphuzu lokuncibilika 136-140°C (lit.)
Iphoyinti lokubilisa 160.5°C (isilinganiso esilinganiselwe)
Ukuminyana 1.5719(roughestimate)
Inkomba ye-Refractive 1.6000 (isilinganiso)
Izimo zesitorejiSealedindry, RoomTemperature
I-MorphologyCrystallinePowder
I-acidity coefficient (pKa)pK1:1.96(25°C)
UmbalaLightyellowtolightgreen
Ukunyibilika kwamanzi 1g/L(20ºC)

2-Chloro-4-nitrobenzoic acid CAS 99-60-5 Isicelo

Itholakala nge-chlorination kanye ne-oxidation ye-p-nitrotoluene. Faka i-p-nitrotoluene kureactor eyomile, ngemva kokufudumeza nokuncibilika, engeza izintambo zensimbi nama-iodine flakes, ku-58-62 â, udlulise inani elilinganayo legesi ye-chlorine, geza ngamanzi ashisayo, unciphise nge-sodium carbonate, bese uthela amanzi e-ice , enyakaziswa ukuze ahlukanise amakristalu, ahlungwe ukuze asuse amanzi, futhi omiswe emthunzini ukuze athole i-2-chloro-4-nitrotoluene. Bese wengeza izikhathi ezingu-25 zesisombululo se-sodium hydroxide engu-1-2% ku-2-chloro-4-nitrotoluene, ukushisa kuya ku-Chemicalbook ebilayo, ngaphansi kokuvuselela okunamandla, kancane kancane engeza i-potassium permanganate, gcina izinga lokushisa ku-100±1â , Ngemva kokungeza, qhubeka xuba, reflux imizuzu engu-30, yekela kuphole, futhi ususe i-manganese dioxide. I-filtrate yalungiswa ku-pH 1-2 nge-hydrochloric acid, i-precipitate yagezwa ngamanzi e-ice, yahlungwa futhi yomiswa ku-80 ° C ukuze kutholwe umkhiqizo. Ukusebenza kwe-chlorination kungenziwa futhi phambi kwe-ferric chloride, futhi kusadlula i-chlorine ku-58-62 ° C. Isivuno esiphelele se-chlorination ne-oxidation singama-70%.