發表時間: 2023-05-26 17:15:49
作者: 丹東市精細化(hua)學品(pin)有限(xian)公(gong)司
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苯(ben)(ben)乙(yi)酮(tong)(tong),亦稱(cheng)乙(yi)酰苯(ben)(ben),俗稱(cheng)安眠酮(tong)(tong)。是很簡(jian)單的芳香酮(tong)(tong),分(fen)子式C8H8O或C6H5COCH3。其中(zhong)(zhong)芳核(苯(ben)(ben)環)直(zhi)接與(yu)羰基(ji)相連(lian)。在(zai)(zai)自然界中(zhong)(zhong),苯(ben)(ben)乙(yi)酮(tong)(tong)以游(you)離狀態存在(zai)(zai)于(yu)(yu)一些植物的香精油中(zhong)(zhong),苯(ben)(ben)乙(yi)酮(tong)(tong)為無色晶(jing)體(ti),或淺黃(huang)色油狀液體(ti)。有(you)類似山(shan)楂的氣(qi)味。微(wei)溶(rong)于(yu)(yu)水,易溶(rong)于(yu)(yu)多種有(you)機溶(rong)劑。能與(yu)蒸(zheng)氣(qi)一起揮發,氧(yang)化(hua)時(shi)可(ke)以生成(cheng)苯(ben)(ben)甲(jia)酸;還(huan)(huan)原時(shi)可(ke)生成(cheng)乙(yi)苯(ben)(ben),完全加氫時(shi)生成(cheng)乙(yi)基(ji)環己烷。用(yong)于(yu)(yu)制(zhi)(zhi)(zhi)香皂(zao)和香煙,也用(yong)作(zuo)纖維素酯和樹脂等的溶(rong)劑和塑(su)料工業生產中(zhong)(zhong)的增塑(su)劑等。還(huan)(huan)可(ke)以制(zhi)(zhi)(zhi)造安眠藥(yao)。可(ke)由苯(ben)(ben)與(yu)乙(yi)酸酐反(fan)應制(zhi)(zhi)(zhi)得,或由乙(yi)苯(ben)(ben)氧(yang)化(hua)制(zhi)(zhi)(zhi)得,也可(ke)用(yong)乙(yi)酰氯與(yu)苯(ben)(ben)在(zai)(zai)三氯化(hua)鋁作(zuo)用(yong)下經傅氏(shi)反(fan)應制(zhi)(zhi)(zhi)得。
性狀(zhuang):常溫為(wei)無色(se)或淺黃(huang)色(se)液體(ti),低溫為(wei)片狀(zhuang)晶(jing)體(ti),有類似山楂(zha)的香味(wei)
沸(fei)點(dian)(℃,101.3kPa):202.0
熔(rong)點(dian)(℃):19.7
相對密(mi)度(g/mL,20/4℃):1.0289
相對密(mi)度(du)(g/mL,25/4℃):1.0240
相對蒸汽(qi)密度(g/mL,空(kong)氣=1):4.14
折射率(lv)(15℃):1.53631
折射(she)率(n20℃):1.5350
黏度(mPa·s,15℃):2.015
黏度(mPa·s,25.5℃):1.642
黏度(mPa·s,30℃):1.511
閃點(℃,閉(bi)口):105
燃(ran)點(℃):571
蒸(zheng)發熱(KJ/mol,25℃):53.42
蒸發熱(KJ/mol,b.p.):38.83
生成(cheng)熱(re)(KJ/mol,25℃,液體(ti)):142.60
燃燒熱(KJ/mol,25℃,液(ye)體(ti)):4157.1
比熱容(KJ/(kg·K),30℃,定壓(ya)):1.90
臨界(jie)溫度(℃):456