2- (3-Butynyloxy) Tetrahydro-2 H-Pyran (CAS# 40365-61-5)
| Awọn aami ewu | Xn – ipalara |
| 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 | S23 – Maṣe simi oru. S26 - Ni ọran ti olubasọrọ pẹlu awọn oju, fi omi ṣan lẹsẹkẹsẹ pẹlu ọpọlọpọ omi ki o wa imọran iṣoogun. S28 - Lẹhin olubasọrọ pẹlu awọ ara, wẹ lẹsẹkẹsẹ pẹlu ọpọlọpọ ọṣẹ-suds. S37 / 39 - Wọ awọn ibọwọ ti o dara ati aabo oju / oju |
| WGK Germany | 3 |
| HS koodu | 29329900 |
Ọrọ Iṣaaju
O jẹ ti ko ni awọ si ina omi ofeefee pẹlu õrùn pataki kan.
2- (3-butynoxy) tetrahydrate-2H-pyran ni a maa n lo bi agbedemeji ni iṣelọpọ Organic.
Ọna ti ngbaradi 2-- (3-butynoxy) tetrahydrate-2H-pyran ni gbogbogbo lati ṣepọ butynyl nipa idinku 3-butynol pẹlu sulfuric acid, ati lẹhinna fesi pẹlu formaldehyde lati gba 3-butynylmethanol. Awọn ọja ti wa ni esterified pẹlu tetraoxane lati gba awọn afojusun yellow.
Alaye aabo: 2- (3-butynyloxy) tetrahydrate-2H-pyran yẹ ki o yago fun olubasọrọ pẹlu awọn oxidants ti o lagbara ati awọn acids ti o lagbara. Nigbati o ba n mu tabi lo agbo-ara yii, wọ awọn ibọwọ aabo ati awọn oju oju lati rii daju pe iṣẹ naa ti ṣe ni agbegbe ti o ni afẹfẹ daradara. Nigbati o ba tọju ati gbigbe, ṣubu ati awọn orisun ooru to lagbara yẹ ki o yago fun.
