3 4-Dichlorophenylhydrazine hydrochloride (CAS# 19763-90-7)
Ngozi ndi Chitetezo
| Zizindikiro Zowopsa | R20/21/22 - Zowopsa pokoka mpweya, kukhudzana ndi khungu komanso kumeza. R36/37/38 - Zokwiyitsa maso, kupuma komanso khungu. |
| Kufotokozera Zachitetezo | S26 - Mukakhudza maso, yambani nthawi yomweyo ndi madzi ambiri ndikupempha uphungu wachipatala. S37/39 - Valani magolovesi oyenera komanso chitetezo chamaso / kumaso S36/37/39 - Valani zovala zodzitchinjiriza zoyenera, magolovesi ndi chitetezo chamaso / kumaso. S22 - Osapumira fumbi. S24/25 - Pewani kukhudzana ndi khungu ndi maso. |
| Ma ID a UN | 2811 |
| WGK Germany | 3 |
| HS kodi | 29280000 |
| Zowopsa | Zowopsa/Zokwiyitsa |
| Kalasi Yowopsa | ZOKWIYA |
3 4-Dichlorophenylhydrazine hydrochloride (CAS# 19763-90-7) Zambiri
| ntchito | 3, 4-dichlorophenylhydrazine hydrochloride ndi mankhwala apakatikati omwe angagwiritsidwe ntchito pokonzekera biphenylpyridine. |
| njira yokonzekera | 3,4-dichloroaniline (38.88g,0.2399mol) imasungunuka mu dichloroethane (30ml), ndiye 12mol / L concentrated hydrochloric acid (70ml,0.84mol) imawonjezeredwa, sodium nitrite (18.06g,0.261, themol) imawonjezeredwa. njira yothetsera imatenthedwa pa 5 ℃ kwa 30min, ndipo madzi oyeretsedwawo amasefedwa, kutsika mpaka 140ml ya sodium sulfite solution yomwe ili (90.71g,0.7197mol), imachita pa 80 ℃ kwa pafupifupi maola atatu, imachita kupanga 3,4-dichlorophenylhydrazine, kuwonjezera pafupifupi (60ml,0.72mol) anaikira hydrochloric asidi kwa ola 1, akuyambitsa usiku firiji firiji, fyuluta kupeza 3,4-dichlorophenylhydrazine hydrochloride woyera olimba 46.1g, zokolola: 90%. |
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