(E)-Methyl 4-bromocrotonate (CAS# 6000-00-6)
Khatarta iyo Badbaadada
| Calaamadaha halista | Xi - xanaaq |
| Xeerarka Khatarta | R37/38 - Ka xanaajiso habka neefsashada iyo maqaarka. R41 - Khatarta dhaawaca daran ee indhaha R36/37/38 - Waxay ka xanaajisaa indhaha, habka neefsashada iyo maqaarka. |
| Sharaxaada Badbaadada | S26 - Haddii ay dhacdo in indhaha la taabto, isla markiiba ku raaci biyo badan oo raadso talo caafimaad. S39 - Xidho ilaalinta indhaha / wajiga. |
| WGK Germany | 3 |
| RTECS | GQ3120000 |
| FLUKA BRAND F CODES | 8-9 |
| Koodhka HS | 29161900 |
Hordhac
Trans-4-bromo-2-butenoic acid methyl ester waa dareere aan midab lahayn oo leh ur gaar ah. Waxay leedahay cufnaanta qiyaastii 1.49g/cm3, barta karkarinta ee ku saabsan 171-172°C, iyo barta toosan ee ku dhawaad 67°C. Waa mid aan lagu milmi karin biyaha heerkulka qolka, laakiin waxay la mid tahay dareerayaasha organic sida ethanol, ether, iwm.
Isticmaal:
Trans-4-bromo-2-butenoic acid methyl ester waxaa inta badan loo isticmaalaa sidii dhexe ee falcelinta synthesis organic. Waxaa loo isticmaali karaa isku-darka xeryahooda kale ee organic, tusaale ahaan isku-dhafka xeryahooda ee kimistariga daawada iyo kiimikada sunta cayayaanka.
Habka Diyaarinta:
Trans-4-bromo-2-butenoic acid methyl ester waxaa badanaa lagu diyaariyaa falcelinta bromination iyo falcelinta esterification. Butene marka hore waxaa lagu falceliyaa bromine si loo siiyo 4-bromo-2-butene, ka dibna lagu nadiifiyo methanol si loo siiyo trans-4-bromo-2-butenoic acid methyl ester.
Macluumaadka Badbaadada:
Trans-4-bromo-2-butenoic acid methyl ester waa nooc ka mid ah dareeraha organic iyo walxo kiimiko ah, kaas oo leh khatar gaar ah. Waa cuncun iyo daxal, iyo taabashada maqaarka, indhaha ama marinnada neefsashada waxay sababi kartaa xanaaq iyo dhaawac. Xidhiidhka tooska ah waa in laga fogaadaa marka la isticmaalayo, waana in la qaataa ilaalinta ku haboon ee neefsashada iyo dharka ilaalinta. Intaa waxaa dheer, waa in taxaddar la sameeyaa si looga fogaado xiriirka oksidants iyo asiidhyada xooggan inta lagu jiro kaydinta si looga hortago falcelinta khatarta ah. Haddii aad u baahan tahay inaad isticmaasho xaruntan, fadlan ka shaqee xarun ammaan ah oo raac nidaamka shaqada ee badbaadada leh.
