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

Ntseeg Tshuaj yog ib tug ua Tuam Tshoj 2-Chloro-5-nitropyridine CAS 4548-45-2 chaw tsim tshuaj paus, tsum thiab exporter. Ua raws li kev ua raws li cov khoom lag luam zoo, kom peb 2-Chloro-5-nitropyridine CAS 4548-45-2 tau txaus siab los ntawm ntau tus neeg siv khoom. Shandong Ntseeg

Peb zoo ntawm qhov zoo ntawm cov khoom siv tshuaj lom neeg hauv thaj chaw. Peb cov khoom raug xa tawm mus rau Tebchaws Europe, Tebchaws Meskas, Nyiv, Kaus Lim Qab Teb, Sab Hnub Tuaj Asia thiab lwm lub tebchaws thiab cheeb tsam. Nrog rau kev tshawb fawb thiab thev naus laus zis raws li kev qhia, kev ncaj ncees raws li lub hauv paus, zoo li lub neej, thiab tso siab rau lub tswv yim kev lag luam ntawm kev tsim kho tshiab thiab kev loj hlob, peb cia siab tias yuav tsim kev sib pauv thiab kev koom tes nrog cov neeg siv khoom hauv tsev thiab txawv teb chaws los tsim kev vam meej!

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

2-Chloro-5-nitropyridine CAS 4548-45-2 Cov Khoom Siv Tshuaj

Melting point 105-108 ° C (lit.)
Kub taw tes 256.6 ± 20.0 ° C (Predicted)
Qhov ceev 1.6616 (roughestimate)
Refractive index 1.5500 (kwv yees)
Flash point 158 ​​° C
Cia tej yam kev mob Keepindarkplace, Sealedindry, RoomTemperature acidity coefficient (pKa) -4.22 ± 0.10 (Predicted)
MorphologyCrystallinePowder
ColorLightyellowtobeige
Solubility hauv kub methanol.Insolubleinwater.

2-Chloro-5-nitropyridine CAS 4548-45-2 Daim ntawv thov

Ib txoj kev npaj ntawm kev siv dichlorine monoxide los npaj 2-chloro-5-nitropyridine yog sib tov 3-nitropyridine thiab 1-3 zaug tus nqi ntawm alkali nyob rau hauv molar ratio, 1-2 zaug tus nqi ntawm chloride ntsev thiab cov kuab tshuaj yog tov tusyees. , thiab txias rau -15 ° C rau -10 ° C ntawm qhov kub thiab txias; Tom qab dissolving 2-3 zaug ntawm molar piv ntawm dichloride monoxide nyob rau hauv cov kuab tshuaj, nws yog muab tso rau hauv cov tshuaj tiv thaiv sib tov nyob rau hauv tag nrho cov nplawm, thiab tuav ntawm -10 ° C. Txog 0 ° C, qhov kev sib txuas ntxiv tau ua tiav rau 2 teev, qhov ntsuas kub tau nce mus rau hauv chav tsev kub thiab txuas ntxiv mus rau 2 teev kom txog thaum cov tshuaj tiv thaiv ntawm cov khoom siv raw 3-nitropyridine tiav, cov reactant tau nchuav rau hauv dej khov, Cov txheej txheem organic tau muab cais tawm, cov txheej txheem organic tau sau tseg, thiab qhov loj ntawm cov organic txheej yog ntxuav nrog 5% hydrochloric acid ib zaug, ntxuav nrog dej ib zaug, qhuav nrog anhydrous magnesium sulfate, thiab evaporate cov organic hnyav nyob rau hauv lub siab txo kom tau 2. - chloro-5-nitropyridine.