4-Nitrophenetole (CAS#100-29-8)
Bayanin Tsaro | S22 - Kada ku shaka kura. S24/25 - Guji hulɗa da fata da idanu. |
4-Nitrophenetole (CAS#100-29-8)
inganci
Kodadde rawaya lu'ulu'u. Matsayin narkewa shine 60 ° C (58 ° C), wurin tafasa shine 283 ° C, 112 ~ 115 ° C (0.4kPa), kuma ƙarancin dangi shine 1. 1176. Dan narkewa cikin ruwa, ethanol mai sanyi da man fetur mai sanyi. ether. Mai narkewa a cikin ether, mai narkewa a cikin ethanol mai zafi da ether mai zafi.
Hanya
An shirya shi ta hanyar etherification dauki na p-nitrochlorobenzene da ethanol. P-nitrochlorobenzene da ethanol an ƙara su a cikin kwandon amsawa, an ɗaga zafin jiki zuwa 82 ° C, kuma an ƙara maganin ethanol sodium hydroxide a hankali, kuma an aiwatar da martani a 85 ~ 88 ° C don 3h. An rage alkalinity na maganin amsawa zuwa ƙasa da 0.9%, sanyaya zuwa 75 ° C, kuma an daidaita ƙimar pH zuwa 6.7 ~ 7 tare da acid hydrochloric mai maida hankali. Bayan tsayawa da gyare-gyare, ana ɗaukar Layer mai kuma ana wanke sodium nitrophenol ta hanyar dumama ruwa, kuma ana distilled Layer mai a ƙarƙashin rage matsa lamba, kuma an dauki kashi na 214 ~ 218 ° C (2. 66 ~ 5.32kPa). kamar wannan samfurin.
amfani
ana amfani da shi azaman tsaka-tsaki a cikin ƙwayoyi da rini. Ana amfani dashi a cikin magani don haɗa phenacetin, da sauransu.
tsaro
Wannan samfurin yana da guba. Dukansu shaka da sha suna da illa ga lafiya. Sanya gilashin aminci, sa kayan shigar guba na gabaɗaya, kuma sanya abin rufe fuska mai tacewa mai sarrafa kansa lokacin da yake hulɗa da ƙura.
An yi marufin da ƙananan buɗaɗɗen ganguna na ƙarfe, kwalabe-baki na gilashi, kwalabe na murfin baƙin ƙarfe, kwalabe na filastik ko ganga na ƙarfe (gwangwani) a wajen akwatunan katako. Ajiye a cikin ɗakin ajiya mai sanyi, mai iska. Ka nisanta daga wuta, tushen zafi, karewa daga hasken rana kai tsaye, kuma rufe akwati. Sauƙaƙewa mai sauƙi da saukewa lokacin sarrafawa.