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硝酸鎳 |
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詳細介紹: 如圖:硝酸鎳 硝酸(suan)(suan)鎳碧綠色單(dan)斜(xie)晶(jing)系板狀晶(jing)體,密(mi)度(du)2.05g/cm3,熔點56.7℃,沸點136.7℃(飽和溶(rong)液(ye)(ye))。溶(rong)解(jie)(jie)度(du)96.3 (g/100gH2O)易(yi)溶(rong)于水(shui),液(ye)(ye)氨,乙(yi)醇,微(wei)溶(rong)于丙(bing)酮,水(shui)溶(rong)液(ye)(ye)呈酸(suan)(suan)性(xing),有(you)(you)吸(xi)濕性(xing),潮濕空氣中(zhong)很快潮解(jie)(jie)。干燥空氣中(zhong)緩慢風(feng)化(hua)。受熱(re)時會失(shi)去(qu)(qu)四個分子水(shui),溫度(du)高(gao)于110℃時開始分解(jie)(jie)并(bing)形成堿式鹽,繼續加(jia)熱(re)生成棕黑色的三氧化(hua)二鎳和綠色的氧化(hua)亞鎳的混合(he)物。易(yi)溶(rong)于水(shui),水(shui)溶(rong)液(ye)(ye)呈酸(suan)(suan)性(xing),溶(rong)于氨水(shui),液(ye)(ye)氨,氧化(hua)劑,與(yu)有(you)(you)機(ji)物還原(yuan)及(ji)易(yi)燃物硫,磷等混合(he)有(you)(you)引(yin)起燃燒(shao)和爆炸危險。57℃時溶(rong)于其結晶(jing)水(shui)中(zhong),進一步(bu)加(jia)熱(re)失(shi)去(qu)(qu)結晶(jing)水(shui),灼(zhuo)燒(shao)時可得Ni2O3. |