3 4-Dichlorophenylhydrazine hydrochloride (CAS# 19763-90-7)
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| Klas Hazard | Iwe |
3 4-Dichlorophenylhydrazine hydrochloride (CAS# 19763-90-7) Ozi
| ngwa | 3, 4-dichlorophenylhydrazine hydrochloride bụ etiti ọgwụ nwere ike iji kwadebe biphenylpyridine. |
| usoro nkwadebe | A na-agbaze ngwakọta 3,4-dichloroaniline (38.88g,0.2399mol) na dichloroethane (30ml), wee gbakwunye 12mol/L concentrated hydrochloric acid (70ml,0.84mol), sodium nitrite (18.06g,0.261mol) na-agbakwunye, mmeghachi omume mmeghachi omume kpaliri na 5 ℃ maka 30min, na A na-ehichapụ mmiri mmiri doro anya, tụba na 140ml nke sodium sulfite ngwọta nwere (90.71g,0.7197mol), meghachi omume na 80 ℃ maka ihe dị ka awa 3, meghachi omume iji mepụta 3,4-dichlorophenylhydrazine, tinye ihe dị ka (60ml,0.72mol) hydrochloric. acid maka 1 hour, kpalie n'abali na ụlọ okpomọkụ, iyo iji nweta 3,4-dichlorophenylhydrazine hydrochloride ọcha siri ike 46.1g, mkpụrụ: 90%. |
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