4-Methoxyphenylhydrazine hydrochloride (CAS# 19501-58-7)
Ewu ati Aabo
| Awọn koodu ewu | R20 / 21/22 - ipalara nipasẹ ifasimu, ni olubasọrọ pẹlu awọ ara ati ti o ba gbe. R36 / 37/38 - Irritating si oju, eto atẹgun ati awọ ara. |
| Apejuwe Abo | S36 / 37 - Wọ aṣọ aabo ati awọn ibọwọ to dara. S36 - Wọ aṣọ aabo to dara. S26 - Ni ọran ti olubasọrọ pẹlu awọn oju, fi omi ṣan lẹsẹkẹsẹ pẹlu ọpọlọpọ omi ki o wa imọran iṣoogun. |
| UN ID | 2811 |
| WGK Germany | 3 |
| HS koodu | 29280090 |
| Akọsilẹ ewu | Irritant / ipalara |
| Kíláàsì ewu | Ìbínú, Mú Òtútù |
| Iṣakojọpọ Ẹgbẹ | III |
4-Methoxyphenylhydrazine hydrochloride (CAS# 19501-58-7) Alaye
| Lo | 4-methoxyphenylhydrazine hydrochloride jẹ agbedemeji, ni akọkọ ti a lo lati ṣe agbejade awọn agbo ogun phenylhydrazine, ati pe o tun le ṣee lo lati ṣe awọn ọja kemikali miiran, bii 4-nitroindole ati apixaban. Ti a lo si awọn awọ ati awọn agbedemeji elegbogi |
| Igbaradi | 4-methoxyphenylhydrazine hydrochloride le ti wa ni pese sile lati aniline nipasẹ diazotization lenu. Mu aniline, hydrochloric acid ati sodium nitrite, awọn molar ratio laarin wọn jẹ 1: 3.2: 1.0, akọkọ fi hydrochloric acid, ki o si fi ammonium nitrite ni 5 ℃, ki o si fesi ni 0 ~ 20 ℃ fun 40 iṣẹju lati se ina chlorinated diazobenzene; Gẹgẹbi ipin molar ti aniline si 1: 3.5: 2.5, ammonium sulfite ati hydrochloric acid ti wa ni afikun, ati idinku, hydrolysis ati acidification ni a gbe jade ninu kettle idinku, akoko idinku jẹ awọn iṣẹju 60 ~ 70, ati hydrolysis ati acidification. akoko ni 50 iṣẹju. Ni akọkọ, ammonium sulfite reacts pẹlu excess hydrochloric acid lati gbe awọn ammonium bisulfite, ammonium bisulfite, ammonium sulfite reacts pẹlu chlorinated diazobenzene lati dagba phenylhydrazine disulfonate, ati ki o reacts pẹlu hydrochloric acid fun hydrolysis ati acid onínọmbà Awọn lenu, ati lẹhin spin-gbigbe, 4 methoxyphenylhydrazine hydrochloride ti pese sile. |
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