2 2-Dimethyl-1 3-dioxan-5-ọkan (CAS# 74181-34-3)
| Awọn aami ewu | Xi - Irritant |
| Awọn koodu ewu | R36 / 37/38 - Irritating si oju, eto atẹgun ati awọ ara. R41 - Ewu ti pataki ibaje si oju R37 / 38 - Irritating si eto atẹgun ati awọ ara. |
| Apejuwe Abo | S26 - Ni ọran ti olubasọrọ pẹlu awọn oju, fi omi ṣan lẹsẹkẹsẹ pẹlu ọpọlọpọ omi ki o wa imọran iṣoogun. S37 / 39 - Wọ awọn ibọwọ ti o dara ati aabo oju / oju S39 - Wọ oju / aabo oju. S24/25 - Yago fun olubasọrọ pẹlu awọ ara ati oju. |
| UN ID | Ọdun 1993 |
| HS koodu | 29141900 |
| Kíláàsì ewu | 3 |
| Iṣakojọpọ Ẹgbẹ | III |
Ọrọ Iṣaaju
2,2-dimethyl-1, 3-dioxan-5-ọkan jẹ ẹya Organic pẹlu agbekalẹ C6H10O3. Atẹle ni apejuwe ti iseda rẹ, lilo, igbaradi ati alaye ailewu:
Iseda:
2,2-Dimethyl-1,3-dioxan-5-one jẹ omi ti ko ni awọ pẹlu õrùn ketone pataki kan. O ni iwuwo ti 0.965 g/mL, aaye didan ti 156-157°C, ati aaye filasi ti 60°C. O ti wa ni tiotuka ni ọpọlọpọ awọn olomi Organic bi ethanol, ethyl acetate ati dichloromethane.
Lo:
2,2-Dimethyl-1,3-dioxan-5-ọkan jẹ agbedemeji iṣelọpọ Organic ti o wọpọ ti a lo. O le ṣee lo bi oluranlowo ketonizing, oluranlowo esterifying ati oluranlowo condensing ninu iṣelọpọ. O le ṣee lo ni iṣelọpọ ti awọn agbo ogun Organic miiran, gẹgẹbi awọn aṣọ, awọn resini, awọn awọ, awọn oogun ati awọn kemikali daradara.
Ọna Igbaradi:
Ọna igbaradi ti 2,2-Dimethyl-1,3-dioxan-5-ọkan le ṣee ṣe nipasẹ ifasilẹ oxidation Uskberg. Ni pato, 1,3-butanediol ti ṣe atunṣe pẹlu methyl iodide lati ṣe 2,2-dimethyl -1,3-dioxane. Lẹhinna, 2,2-dimethyl -1,3-dioxane ti wa ni abẹ si iṣesi oxidation ni iwaju iodine, ati pe ọja naa jẹ 2,2-Dimethyl-1,3-dioxan-5-one.
Alaye Abo:
