2 3 5-Trichloropyridine (CAS# 16063-70-0)
Ewu ati Aabo
| Awọn aami ewu | Xi - Irritant |
| Awọn koodu ewu | R52/53 – Ipalara si awọn oganisimu omi, le fa awọn ipa buburu igba pipẹ ni agbegbe omi. R36 / 37/38 - Irritating si oju, eto atẹgun ati awọ ara. |
| Apejuwe Abo | S61 – Yago fun itusilẹ si ayika. Tọkasi awọn ilana pataki / awọn iwe data aabo. S37 / 39 - Wọ awọn ibọwọ ti o dara ati aabo oju / oju S26 - Ni ọran ti olubasọrọ pẹlu awọn oju, fi omi ṣan lẹsẹkẹsẹ pẹlu ọpọlọpọ omi ki o wa imọran iṣoogun. |
| UN ID | UN 2811 6.1/PG 3 |
| WGK Germany | 2 |
| RTECS | UU0525000 |
| HS koodu | 29333990 |
| Akọsilẹ ewu | Irritant |
2 3 5-Trichloropyridine (CAS# 16063-70-0) Alaye
| ifihan | 2,3, 5-trichloropyridine jẹ ina ofeefee to lagbara ati agbedemeji kemikali itanran pataki. 2,3,5-trichloropyridine fesi pẹlu alkali irin hydroxide lati mura 3,5-dichloro-2-pyridine phenol, eyi ti o jẹ pataki ohun elo aise fun awọn kolaginni ti insecticidal mites ati herbicide oxaloether. 2,3, 5-trichloropyridine tun le jẹ fluorinated siwaju sii lati ṣajọpọ 2, 3-difluoro-5-chloropyridine, eyiti o jẹ ohun elo aise ipilẹ fun iṣelọpọ ti herbicide alkynurate. |
| igbaradi | 60g ti methanol ni a fi kun si 1000mL gilasi ẹnu mẹrin, 100g. 2,3,5,6-tetrachloropyridine ati 31.7g ti hydrazine hydrate ni a fi kun, iwọn otutu ti gbe soke si 60-65 ℃, a ṣe ifasilẹ itọju ooru fun awọn wakati 2, iṣesi ti pari, iwọn otutu ti lọ silẹ si 0-5 ℃, iwọn otutu ti lọ silẹ si wakati 1, a ti ṣe iyọda ti o lagbara, ati pe o lagbara jẹ 2,3, 5-trichlor6-hydrazinyl pyridine hydrate ti gbẹ lati gba 101.6g ti funfun ti o lagbara pẹlu 96% ikore ati akoonu 98.5%. Fi 100g kun 2,3,5-trichloro 6-hydrazinyl pyridine hydrate, 50g ti 5% sodium hydroxide aqueous ojutu si 1000ml ti igo ẹnu mẹrin, gbe iwọn otutu soke si 70-75 ℃, fi 387.6g ti 10% iṣuu soda hypochlorite olomi ojutu dropwise, tọju iwọn otutu ni 70-75 ℃, fesi fun wakati 1, pari Ihuwasi naa, dara si 5-10 ℃, aruwo fun wakati 1, àlẹmọ lati gba 2,3, 5-trichloropyridine robi ti wa ni distilled labẹ titẹ dinku lati gba ọja naa, eyiti o jẹ ina ofeefee to lagbara pẹlu ikore ti 95% ati akoonu ti 98%. |
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