4-Nitrophenetole CAS Nr 100-29-8

4-Nitrophenetole CAS Nr 100-29-8

zoo
daj ntseg daj crystals. Lub melting point yog 60 ° C (58 ° C), lub boiling point yog 283 ° C, 112 ~ 115 ° C (0.4kPa), thiab tus txheeb ze ceev yog 1. 1176. Me ntsis soluble nyob rau hauv dej, txias ethanol thiab txias roj av. ether. Soluble nyob rau hauv ether, soluble nyob rau hauv kub ethanol thiab kub roj av ether.

Txoj kev
Nws yog npaj los ntawm etherification cov tshuaj tiv thaiv ntawm p-nitrochlorobenzene thiab ethanol. P-nitrochlorobenzene thiab ethanol tau ntxiv rau cov tshuaj tiv thaiv hluav taws xob, qhov kub tau nce mus rau 82 ° C, thiab cov tshuaj ethanol sodium hydroxide tau ntxiv dropwise, thiab cov tshuaj tiv thaiv tau nqa tawm ntawm 85 ~ 88 ° C rau 3h. Cov alkalinity ntawm cov tshuaj tiv thaiv raug txo kom qis dua 0.9%, txias rau 75 ° C, thiab pH tus nqi tau hloov mus rau 6.7 ~ 7 nrog concentrated hydrochloric acid. Tom qab sawv thiab stratification, cov roj txheej yog muab thiab cov sodium nitrophenol yog ntxuav tam sim ntawd los ntawm cov dej cua sov, thiab cov roj txheej yog distilled nyob rau hauv txo siab, thiab cov feem ntawm 214 ~ 218 ° C (2. 66 ~ 5.32kPa) yog noj. raws li cov khoom no.

siv
siv los ua ib qho nruab nrab hauv tshuaj thiab dyes. Nws yog siv rau hauv tshuaj los ua ke phenacetin, thiab lwm yam.

kev ruaj ntseg
Cov khoom no yog tshuaj lom. Ob qho tib si nqus tau thiab nqus tau yog teeb meem rau kev noj qab haus huv. Hnav cov tsom iav kev nyab xeeb, hnav cov tshuaj lom neeg nkag mus rau hauv lub cev, thiab hnav tus kheej-priming lim cov plua plav npog qhov ncauj qhov ntswg thaum ntsib cov plua plav.
Cov ntim khoom yog tsim los ntawm me me qhib steel nruas, ntsia hlau-lub qhov ncauj iav fwj, hlau hau xovxwm-lub qhov ncauj iav fwj, yas hwj los yog hlau chim (cov kaus poom) sab nraum ntoo crates. Khaws rau hauv qhov chaw txias, ventilated warehouse. Khaws kom deb ntawm qhov hluav taws kub, qhov chaw tshav kub, tiv thaiv tshav ntuj ncaj qha, thiab kaw lub thawv. Lub teeb loading thiab unloading thaum tuav.